Welcome to Rex Time Switches

Started in 1951, Rex, located in Soest, Germany, is a

global leader in the manufacture of time switches with
sales in over 60 countries worldwide.

Known for their high quality and precision, these time

switches are now available in the U.S. through Baco
Controls, Inc.

Located in Cazenovia, NY since 1980, Baco Controls

offers a complete line of 22mm and 30mm pushbuttons,
rotary Cam Switches, and Disconnect Switches.

Together we offer:
Innovative solutions
Energy Savings
Easy programming
Easy installation
Reliable support and service

2
 Table of Contents

Digital Time Switches

AlphaRex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 5
AlphaRex - Astro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 9
AlphaRex - DY64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 - 11
MicroRex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
MicroRex Plus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
MaxiRex Plus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Analog Time Switches

MicroRex - 3 module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 - 15
MicroRex - 1 module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 - 15
EconoRex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
MaxiRex 30A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
PolarRex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Rex analog time relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 - 20

Analog Hour Counters

ContaRex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Rex 2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

3
 Rex - digital time switches
AlphaRex

NEW

A40 107

A40 101 A40 108

Reference Reference

AlphaRex D21 Accessory

weekly time switch, 1 channel
A40 107 Data key (NOT for 04770 and 04774)
A40 101 230 V, 50/60 Hz
A40 130 120 V, 50/60 Hz with the data key, it is possible to transfer programs into the time switch.
A40 102 24 V, AC/DC select the data key function on READ on the time switch
the data key can be programmed on a PC
using the data key function WRITE, programs can be transferred to
AlphaRex D22
weekly time switch, 2 channels the data key. It allows to easily copy programs from one time switch
to another one. It can also be used as a backup.
A40 105 230 V, 50/60 Hz one data key allows to save 1 complete time switch program (56 ON/OFF)
A40 131 120 V, 50/60 Hz
A40 106 24 V, AC/DC
A40 108 USB-adapter
to read and write data keys on a PC
AlphaRex D21s software included
weekly time switch, 1 channel with control input and delay connection via USB-port
A40 103 230 V, 50/60 Hz system requirements: Windows2000, WindowsME, WindowsXP and
A40 132 120 V, 50/60 Hz Windows98 second Edition, 10 MB free disc space
A40 104 24 V, AC/DC serial adapter on demand

Dimensions

According to UL 60730-1, UL 60730-2-7, VDE 631-1 and 631-2-7, IEC 60 730-1 and 1.42 1.97
60 730-2-7, EN 60 730-1 and 60 730-2-7 36 mm 50 mm
with text based programming concept
selectable languages: English, German, French, Italian, Spanish and Dutch
fast programming due to selection of pre-set groups of days Mo-Su, Mo-Fr, Sa-Su
and individual selection of days
easy programming with PC using Rex software and data key
83 mm

45 mm
3.27

1.77

a program consists of an ON and OFF time and their assignment to certain days
backup on data key possible
with additional functions:
- holiday program
- random function
- pulse function (only 1 channel) with pulse duration of 1 sec up to 59 min., 59 sec.
and 84 start times (NOT D22 and D21s)
- hour counter for max. 65,535 hours. 2.6
background lighting for display and buttons 66 mm
running reserve of 6 years for date and time
programs are stored in a EEPROM
programs are shown as a weekly matrix on the display
automatic summer-/wintertime change (daylight saving)
precision +/ 0.2 sec/day
manual switching
lead sealable cover, even with inserted data key

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 Rex - digital time switches
AlphaRex

Technical data Wiring diagrams

Type AlphaRex AlphaRex AlphaRex AlphaRex D21 AlphaRex D22
D21 D22 D21s
No. of modules (17.5 mm) 2
Channels 1 2 1
Running reserve 6 Years
Switching step 1 min
Min. switching time 1 min
Accuracy 0.2 sec/ day
Switching capacity
Resistive 230 V~cos =1 16 A~
Incandescent lamp 230 V 8 A~
Inductive 230 V~cos =0.6 10 A~
Contact 1 SPDT 2 SPDT 1 SPDT
Programs 1) 56 28/channel 56
Impulse starting times 84 - -
min 1 sec min 1 sec
Impulse duration (D21) max 59 min, - max 59 min,
Control input (D21s) 59 sec 59 sec Functions
Operating temperature -20 C+55 C
Protection IP20 MENU Menu selection, one step back, press and hold for more than 1 second
to return to main display
1) A program consists of an ON and OFF time
and the assigned day(s). OK Confirmation of selection and parameters

+ Selection in the menu, adjusting parameter and selection of the channel

(2 channel version only!)
Brief description of the programming possibilities

Text based programming

The AlphaRex uses clear text to guide you through the options and the programming. Every step is clearly displayed and the selected function is flashing.
The integrated background lighting for display and buttons allows easy programming even at bad lighting conditions.

Language and Time/Date selection

The language can be selected via the "MENU" button. English is set on delivery.
The time switch is set to the actual time and date by the manufacturer, as well as to the summer / winter time applicable in Europe. Times can be changed via "MENU" + "SET".

Programming
A program consists of an ON and OFF time and the assigned day(s). Before setting the ON and OFF times, the requested days have to be selected:
MONDAY-SUNDAY, MONDAY-FRIDAY, SATURDAY-SUNDAY or INDIVIDUAL.
The INDIVIDUAL mode allows to select every single day of the week. It is also possible to program over midnight.

Relay function
With MENU and FUNCTION it is possible to change the relay position. By default it is AUTO, the time switch switches at the programmed times.
Additional selections are: CONST ON, CONST OFF and EXTRA. With choosing EXTRA the stored program will be inverted.
When the next programmed switching time has been reached, the time switch returns to normal mode.

Holiday
Selection the HOLIDAY function allows to set the start- and end date of the holidays and has to be activated by selecting ACTIVE, or deactivate it
by selecting PASSIVE. When the HOLIDAY function is activated, the stored program will be ignored during the selected days and replaced
by CONST ON or CONST OFF. When holiday is over, the AlphaRex return to default mode.

Data key
When the time switch is connected to the power supply, the data key activates automatically the DATA KEY menu with the options READ and WRITE.
WRITE: programs stored in the time switch will be copied into the data key. Eventually stored programs on the data key will be overwritten!
READ: programs stored on the data key will be copied into the time switch. Eventually stored programs on the time switch will be overwritten.
It is only possible to save 1 time switch program which consist of max. 56 ON/OFF (1 channel) or max. 84 ON (1 channel pulse) or
max. 2 x 28 ON/OFF (2 channel) on the time switch and the data key.
When inserting the data key without the time switch being connected to the supply, the DATA KEY menu will not appear automatically, but has to be selected manually!

Programming on the PC
Next to the easy and text based programming directly on the time switch, it is also possible to do it on your PC by using the Rex software and to transfer
the program with the data key to the time switch. To save the PC-created programs on the data key, the USB-adapter has to be installed.
System requirements: USB-port; Windows98 second edition; Windows2000; WindowsME or WindowsXP, 10MB free disc space

Reset
Pressing simultaneously on all 4 buttons for more than 2 seconds, will cause a deletion of all stored data. Language, time/date, summer / winter time and
switching programs will need to be reinstalled.
5
LIGHT CONTROL
>>> Rex - Astronomical
time switches
AlphaRex Astro

Rex
astronomical
time switches
Easy control of light based on the calculation
of sunrise and sunset, with no need of A45 195
installing a light sensor!

Reference

AlphaRex D21 Astro

weekly time switch, 1 channel

A45 195 230 V, 50/60 Hz

A45 178 120 V, 50/60 Hz
A45 196 24 V, 50/60 Hz

AlphaRex D22 Astro

weekly time switch, 2 channels

A45 197 230 V, 50/60 Hz

A45 179 120 V, 50/60 Hz
A45 198 24 V, 50/60 Hz
Comfort and safety
The time switch calculates the daily times of sunset and sunrise.
According to UL 60730-1, UL 60730-2-7, VDE 631-1 and 631-2-7, IEC 60 730-1 and
At sunset the AstroRex will switch the lights ON and at sunrise the AstroRex
60 730-2-7, EN 60 730-1 and 60 730-2-7
will turn the lights OFF.
with text based programming concept
selectable languages: English, German, French, Italian, Spanish and Dutch
fast programming due to selection of pre-set groups of days Mo-Su, Mo-Fr, Sa-Su
and individual selection of days
easy programming with PC using Rex software and data key
Energy saving on request a program consists of an ON and OFF time and their assignment to certain days
backup on data key possible
To save energy, it is possible to program an OFF and an ON time at night.
with additional functions:
- holiday program
- hour counter for max. 65,535 hours.
background lighting for display and buttons
running reserve of 6 years for date and time
programs are stored in a EEPROM
programs are shown as a weekly matrix on the display
automatic summer-/wintertime change (daylight saving)
As flexible as you need it precision +/ 0.2 sec/day
Even when the lights are OFF due to a OFF-program at night, it is possible manual switching
to turn the lights on by using the control entry. lead sealable cover, even with inserted data key
calculation of sunrise and sunset by programming date, time and local coordinates.
no light sensor needed!
to save energy, a switching off at night is programmable.
Examples for typical applications the switching On and OFF times can be adjusted asymmetrically for +/- 120 minutes.
> Shop window illumination the control input enables the activation of the time switch irrespective to the program.
(NOT D22 Astro!)
> Illumination of private and public buildings
Note:
> Billboard illumination You can program the AlphaRex Astro using the data key
A40 107 and the Rex programming software AlphaSoft!
(see page 4)
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 Rex-light controllers
AlphaRex-Astro time switch

Technical data

Type AstroRex AstroRex

D21 D22
No. of modules (17.5 mm) 2
Number of channels 1 2
Power reserve 6 years
Switching increment 1 min
Shortest switching time 1 min
Accuracy 0.2 s/day
Switching capacity
Resistive 230 V~cos j =1 16 A~
Incandescent lamp 230 V 8 A~
Inductive 230 V~cos j =0.6 10 A~
Switch output 1 SPDT 2 SPDT
Programs1) 28 2 x 14
Control input with delay-time 0 min
23 h 59 min
Operating temperature 20 C+55 C
Protection IP20

1)
Each program comprises a switch-on and switch-off
time and the associated on and off days or day blocks.

Wiring diagrams Dimensions

AstroRex D21 AstroRex D22

1.42 1.97
36 mm 50 mm
83 mm

45 mm
3.27

1.77

2.6
66 mm

Functions
MENU Menu selection, one step back, press and hold for more than 1 second
to return to main display

OK Confirmation of selection and parameters

+ Selection in the menu, adjusting parameter and selection of the channel

(2 channel version only!)

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 Rex-light controllers
AlphaRex-Astro time switch

Basic settings
Menu guidance

The AstroRex guides the user through the programming and setup in plain English. Every step can be read off on the display; the momentarily active function is
indicated by a flashing light. Integrated display and push-button illumination makes operation easier even in poor visibility.

Language and Time/Date selection

The language can be selected via the "MENU" button. English is set on delivery.
The time switch is set to the actual time and date by the manufacturer, as well as to the summer / winter time applicable in Europe. Times can be changed via "MENU" +
"SET".

Position (astro)

The different daily sunrise and sunset times are calculated for the position programmed in the AstroRex. "GERMANY - SOEST" is set on delivery. The actual position
should be entered for optimum operation. This can be done in two ways: via "MENU", "SET" and "ASTRO" to the two options "POSITION" and "COORDINATES".

"POSITION": The town and country closest to the position of use can be selected via this menu item.

"COORDINATES": The coordinates of the actual location can be entered in this menu item if desired. Information on
coordinates and time zones can be found in the time zone map enclosed with every time switch or can be found on the internet.

Offset

Time differences in relation to the calculated switching times can be set via "MENU", "SET", "ASTRO" and "OFFSET". The actual switching time can be offset by up to
+/- 120 minutes in relation to the sunrise and sunset times by entering a time difference. This time is set separately for sunrise and sunset.

Example:
If an offset of +30 minutes is entered, the time
t switch switches 30 minutes after sunrise and
0h 3 6 9 12 15 18 21 24h 30 minutes after sunset.

If an offset of -30 minutes is entered, the time

1 switch switches 30 minutes before sunrise
0
+ + and 30 minutes before sunset.
max. 120min max. 120min

Basic setting via PC and data key

All the basic settings described above, except the actual time and date, can be programmed with the Rex software AlphaSoft and transferred to the time switch with the
data key Order No. A40 107.

8
 Rex-light controllers
AlphaRex-Astro time switch

Deluxe and special functions

Relay functions

The relay setting can be changed via "MENU" and "FUNCTIONS". The default function is "AUTO", i.e. the time switch switches at the programmed times. Other options available are:
"CONST ON", "CONST OFF" and "EXTRA". If "EXTRA" is selected, the switch status specified by the program is reversed. Switch-on and switch-off are controlled by the programmed
switching times with the next switching command.

Holiday time

The start and end time of the holiday period are set in the holiday program and activated with the program item "ACTIVE" or deactivated with the program item "PASSIVE". If the holiday
program is active, the time switch will not execute any programmed switch commands during the corresponding period, but remains "CONST ON" or "CONST OFF" as preferred during
the holiday period. Upon expiry of the holiday period, the time switch automatically switches in accordance with the programmed switching times.

1 hour test

The function "1H-TEST" can be used to simulate switching. When the "1H-TEST" is activated, the switch outputs are switched for one hour. At the end of this time, the time switch
automatically switches in accordance with the programmed switching times.

PIN code

Input and programming can be disabled via a four-digit "PIN code". The inhibit can also be cancelled with the "PIN code". The inhibit can additionally be cancelled via the "RESET"
function; in this case, all settings and programs are also deleted.

Operating hours counter

The relay ON time and date of the last reset are displayed.

Contrast

The display contrast can be adjusted via this function.

Delay-time (1-channel AstroRex)

The 1-channel AstroRex has a control input with variable delay-time. The control input permits additional switching by the relay in parallel to the switching program. Variable delay-time
0 min - 23 h 59 min; the delay-time begins as soon as the voltage at the control input drops.

Data key

The menu item "KEY - READ - WRITE" is automatically activated if a data key is inserted when the power supply is connected.
"WRITE": Program data are transferred from the time switch to the data key.
Important: Data already saved on the data key are overwritten.
"READ": Program data are transferred from the data key to the time switch. Any switching programs already saved in the time switch are overwritten.
The number of programs in the time switch and the basic settings can be saved in the time switch and on the data key. Example: AstroRex D21 maximum 28 programs plus basic set-
tings.
When working without power supply connected, the menu item "KEY - READ - WRITE" is not activated automatically when a data key is inserted. The "KEY" function must be selected via
the menu and the required function can then also be executed without a power supply.

PC programming
In addition to simple, menu-based programming directly on the time switch, switching programs and basic settings for the AstroRex can also be compiled on a personal computer with
the Rex software AlphaSoft and transferred to the time switch with a data key. A read/write device (part number 047 73) is needed to transfer switching programs and settings compiled
on the personal computer to the data key. The device is connected to the personal computer via the USB port. The read/write device is supplied together with a CD-ROM containing the
AlphaSoft program and the necessary driver. System requirements for the personal computer: USB port, Windows 98 second edition, Windows 2000 or Windows XP, 40 MB free
memory capacity on the system drive.

Reset

Pressing simultaneously on all 4 buttons for more than 2 seconds, will cause a deletion of all stored data. Language, date/time, summer / winter time and switching programs will need
to be reinstalled.
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 Rex - digital time switches
AlphaRex DY64

NEW
The AlphaRex DY64 offers 3 different types of programming:
Weekly Program
This menu item is provided for the simple input of programs which are to be repeated
weekly (such as switching of lights and boilers). A weekly program consists of an ON time,
an OFF time and the associated ON and OFF days.

MON TO SUN: the days of the week are already assigned and you only need to set
the ON and OFF times. This is used where the same program is to be executed on every
day of the week.
INDIVIDUAL: you can assign the ON and OFF times to any desired days.
A41 163 This is used where the same program is to be executed only on certain days of the week
or different programs are to be executed on the various days.

Reference
Yearly Program
AlphaRex DY64 This menu item permits the input of (additional) annual programs which are to be executed
annual time switch, 4 channels only during a specified period. These programs and the weekly programs of the same chan-
A41 163 120/230 V, 50/60 Hz nel are programmed together as described above. The period during which a program is to
A41 164 24 V, AC/DC be executed is defined by entering a start date and an end date.

Accessories The option EVERY YEAR should be selected if the additional program is to be executed
A40 125 Data key for DY64 (NOT identical to A40 107!)
A40 126 Replacement battery during the same period of each year (e.g. Christmas, national holidays, birthdays, etc.).
The option ONCE should be selected if the additional program is to be executed only
during a single period (e.g. vacation period), but the start and end dates of this period are
According to UL 60730-1, UL 60730-2-7, VDE 631-1 and 631-2-7, IEC 60 730-1 different in each year.
and 60 730-2-7, EN 60 730-1 and 60 730-2-7

with text based programming concept

selectable languages: English, German, French, Italian, Spanish and Dutch
fast programming due to selection of pre-set groups of days Mo-Su, Mo-Fr, Sa-Su
and individual selection of days
easy programming with PC using Rex software and data key
a program consists of an ON and OFF time and their assignment to certain days
backup on data key possible
84 programs per channel possible: 15:00:00 15:10:00 15:20:00 15:30:00
- 28 weekly/astronomical programs 0:10:00 0:10:00 0:10:00
PERIOD PERIOD PERIOD 15:32:00
- 28 yearly programs Program channel 1,
- 28 exceptional programs or control signal S
SWITCH ON SWITCH ON SWITCH ON
shortest possible program: 1sec Channel 1 relay
0:04:00 0:04:00 0:04:00
background lighting for display and buttons
running reserve of 5 years for date and time
programs are stored in a EEPROM
programs are shown as a weekly matrix on the display
automatic summer-/wintertime change (daylight saving)
precision +/ 0.2 sec/day or according to frequency
manual override switches (ON/OFF/AUTO) for every channel on the front of switch
manual switching
lead sealable cover, even with inserted data key
calculation of sunrise and sunset by programming date, time and local coordinates.
no light sensor needed!
the switching ON and OFF times (astro function)can be adjusted asymmetrically
for +/- 120 minutes.
the control input enables the activation of the time switch irrespective to the program.
(only for channel 1)
possible to create a cyclical repetitive program. (only for channel 1)

10
 Rex - digital time switches
AlphaRex DY64

Exceptional Program
The weekly and annual programs defined for a channel are not executed as long as an extra Technical data
program is active. However, other exception programs will be executed while an exception
Type AlphaRex
program is active. The various exception programs are programmed together as described DY64
above. (see OR function 3a) No. of pitch units of 17.5 mm 6
Number of channels 4
The option EVERY YEAR should be selected if the exception program is to be activated for Power reserve 5 years
the same period in each year (e.g. Christmas, national holidays, birthdays, etc.). Switching increment 1 sec
Shortest switching time 1 sec
The option ONCE should be selected if the exception program is to be activated only Accuracy 0.2 sec/day/ or frequency
during a single period (e.g. vacation period), but the start and end dates of this period are Switching capacity
different in each year. Resistive 230 V~cos j =1 16 A~
Incandescent lamp 230 V 8 A~
Option MON TO SUN: the exception program is active from 00:00 hours on the start date Inductive 230 V~cos j =0.6 10 A~
to 24:00 hours on the end date. During this period, the output of the related channel Switch output 4 SPDT
switches only as defined in the exception program. Programs1) 3 x 4 x 28 (336)
Control input with delay-time 0 min
Option INDIVIDUAL: the exception program is active from 00:00 hours on the start date
23 h 59 min
to 24:00 hours on the end date. During this period, the output of the related channel Operating temperature 20 C+55 C
switches only as defined in the exception program. Protection IP20
Option PROG ON: the exception program is active from the ON time on the start date
to OFF time on the end date. During this period, the output of the channel is permanently 1)
Each program comprises a switch-on and switch-off
on. time and the associated on and off days or day blocks.

Option PROG OFF: the exception program is active from the ON time on the start date to
OFF time on the end date. During this period, the output of the channel is permanently off.

Dimensions
Cycle function for channel 1
Instead of its STANDARD function, the output of channel 1 can be switched on and off cycli-
cally. The available parameters are the PERIOD and the 1 4 2 1 4
2

SWITCH ON time within this period. M 120V/230V 50/60Hz

R6a -20T

1 2
ON ON

83 mm
AUTO AUTO

3.27
OFF OFF
+
3 4
ON ON
AUTO AUTO
OFF OFF

120V/230V~50/60Hz

1 4
L M N S Ch1 3
2 2 1 4
4

4.24 2.6
107.7 mm 66 mm

Wiring diagram

2 1 4 2 1 4
047 70
M 120V/230V 50/60Hz
R6a -20T

1 2
ON ON

+
AUTO AUTO
OFF OFF

3 4
ON ON
AUTO AUTO
OFF OFF

120V/230V~50/60Hz

1 4
L M N S Ch1 3
2 2 1 4
4

11
 Rex - digital time switches
MicroRex / MicroRex Plus

NEW

944 108 A44 190

Reference Technical data

MicroRex D21 Plus
1 channel Type MicroRex MicroRex MicroRex
D11 D21 plus D22 plus
A44 190 230 V, 50/60Hz No. of modules (17.5 mm) 1 2 2
A44 194 120 V, 50/60Hz
Channels 1 1 2
A44 191 24 V, AC/DC
Running reserve >100 h 6 years
MicroRex D22 Plus Switching step 1 min
2 channels Shortest switching step 1 min
Accuracy 2.5 sec/day 1 sec/day
A44 192 230 V, 50/60Hz
A44 195 120 V, 50/60Hz Switching capacity
A44 193 24 V, AC/DC Resistive 230 V~ cos =1 16 A~
Incandescent lamps 230 V~ 5 A~
MicroRex D11
1 channel, 1 module inductive 230 V~ cos =0.6 10 A~
944 108 230 V, 50/60 Hz Contacts 1 SPDT 1 SPDT 2 SPDT
A44 112 120 V, 50/60 Hz No. of programs 8 28 14/channel
Operating temperature -10....+55 C
Protection IP20
According to UL 60730-1, UL 60730-2-7, EN 60730-1 and EN 60730-2-7

Digital weekly DIN rail mounting time switch

1 program consists of 1 ON and 1 OFF time and the allocation of any day of the week or Dimensions
a combination of days and the selected channel (2 channel version). 3.94
60 mm

example: 0.69 1.73

17.5 mm 44 mm
1. prog.: ON 07:00h OFF 08:15h Mo-Fr CH1
2. prog.: ON 16:00h OFF 20:15h Mo-Su CH2
3. prog.: ON 10:00h OFF 15:15h Fr CH1+2

Additional features:
manual override (ON/OFF): permanent ON or OFF
86 mm
3.39

45 mm
1.77
automatic override (ON/OFF): actual program will be inverted (ON->OFF,
OFF->ON) until next programmed ON time
automatic changing of summer/winter time (daylight saving)
running reserve of 6 years

Wiring diagrams 1.42 1.97

36 mm 50 mm
MicroRex D11 MicroRex D21 Plus MicroRex D22 Plus

1 2
83 mm

45 mm
3.27

1.77

4 3

2.6
66 mm

12
 Rex - digital time switches
Front panel and wall mounting
MaxiRex Plus

NEW

A44 210

Reference Technical data

MaxiRex D72/1 Plus
1 channel Type MaxiRex MaxiRex
A44 210 230 V, 50/60 Hz D72/1 Plus D72/2 Plus
A44 215 120 V, 50/60 Hz Channels 1 2
A44 211 24 V, 50/60 Hz
Running reserve 6 Years
MaxiRex D72/2 Plus Switching step 1 min
2 channels Shortest switching step 1 min
A44 212 230 V, 50/60 Hz Accuracy 1 sec/day
A44 216 120 V, 50/60 Hz
A44 213 24 V, 50/60 Hz Switching capacity
resistive 230 V~ cos =1 16 A~
Incandescent lamps 230 V~ 5 A~
According to UL 60730-1, UL 60730-2-7, IEC 730-1, EN 60730-1, VDE 0631-1, inductive 230 V~ cos =0.6 10 A~
IEC 730-2-7, EN 60730-2-7, VDE 0631-2-7 Contacts 1 Channel 2 Channel
No. of programs 28 14/channel
Weekly time switch for front panel installation or surface mounting Operating temperature -20....+55 C
Protection IP20
1 program consists of 1 ON and 1 OFF time and the allocation of any day of the week
or a combination of days and the selected channel. (2 channel version)

Example:
1. prog.: ON 07:00h OFF 08:15h Mo-Fr CH1 Overview Wall mounting
2. prog.: ON 16:00h OFF 20:15h Mo-Su CH2
2. prog.: ON 10:00h OFF 15:15h Fr CH1+2
38 mm
1.49

Additional features:
manual override (ON/OFF): permanent ON or OFF MEN
U
OK

automatic override (ON/OFF): actual program will be inverted (ON -> OFF,
OFF -ON) until next programmed on time.
automatic changing of summer/winter time (daylight saving)
running reserve: 6 years

Dimensions
2.83 1.73
72 mm 44 mm

DIN-rail Front panel

1
2.6 mm
66.4
66 mm
2.60
110 mm
4.33

OK

U
MEN

Ref. 498 498

32 32

Ref. 044 09

2.71 1.33
69 mm 34 mm

13
Rex - analog time switches Rex - analog time switches
MicroRex - 3 modules for DIN rail mounting MicroRex - 1 module for DIN rail mounting

926 428 A10 415

Reference Reference MicroRex T11

24 hour program, synchronous motor
MicroRex T31
24 hour program, synchronous motor 910 402 230 V, 50 Hz
A10 415 120 V,60 Hz
925 429 230 V, 50 Hz
A25 446 120 V, 60 Hz
MicroRex QT11
24 hour program, quartz controlled motor (with running reserve)
MicroRex W31
7 day program, synchronous motor 916 402 230 V, 50/60 Hz
A16 418 120 V, 50/60 Hz
925 112 230 V, 50 Hz
A25 114 120 V, 60 Hz
MicroRex W11
7 day program, synchronous motor
MicroRex QT31
24 hour program, quartz controlled motor (with running reserve) 910 103 230 V, 50 Hz
A10 104 120 V, 60 Hz
926 428 230 V, 50/60 Hz
A26 448 120 V, 50/60 Hz
926 420 9-48 V, AC/DC MicroRex QW11
7 day program, quartz controlled motor (with running reserve)

MicroRex QW31 916 102 230 V, 50/60 Hz

7 day program, quartz controlled motor (with running reserve) A16 103 120 V, 50/60 Hz

926 116 230 V, 50/60 Hz

A26 126 120 V, 50/60 Hz
926 113 9-48 V, AC/DC According to UL 60730-1, UL 60730-2-7, IEC 730-1, EN 60730-1, VDE 0631
part 1, IEC 730-2-7, EN 60730-2-7, VDE 0631 part 2-7
Accessory
Analog 24 hour and 7 day time switches for DIN rail.
037 49 Kit for wall mounting, including base plate and terminal cover manual override switch

According to UL 60730-1, UL 60730-2-7, IEC 730-1, EN 60730-1, VDE 0631 part 1,

IEC 730-2-7, EN 60730-2-7, VDE 0631part 2-7

Analog 24 hour and 7 day time switches for DIN rail.

Hour and minute hands can be turned clockwise or counter-clockwise,
providing easy and quick change of summer to winter time and vice versa.
manual override switch

14
 Rex - analog time switches
MicroRex

Technical data analogue MicroRex

Type MicroRex MicroRex MicroRex MicroRex MicroRex MicroRex MicroRex MicroRex

T11 QT11 W11 QW11 T31 QT31 W31 QW31
No. of modules (17.5 mm) 1 3
Motor synchron quartz synchron quartz synchron quartz synchron quartz
Switching dial 24 h 24 h 7d 7f 24 h 24 h 7d 7d
Running reserve none >100 h none >100 h none >100 h none >100 h
Switching step 15 min 15 min 2h 2h 15 min 15 min 2h 2h
Min. switching step 15 min 15 min 2h 2h 30 min 30 min 4h 4h
Switching accuracy +/-5 min +/-5 min +/-30 min +/-30 min +/-5 min +/-5 min +/-30 min +/-30 min
according to +/- 2.5 sec according to +/- 2.5 sec according to +/- 2.5 sec according to +/- 2.5 sec
Accuracy frequency a day frequency a day frequency a day frequency a day
Switching capacity
Resistive 230 V~ cos j =1 16 A~
Incandescent lamp 230 V~ 4 A~
inductive 230 V~ cos j =0.6 12 A~
Contact 1 SPST 1 SPST 1 SPST 1 SPST 1 SPDT 1 SPDT 1 SPDT 1 SPDT
Operating temperature -10....+55 C
Protection IP20

Wiring diagrams Dimensions

MicroRex-3 modules Wall mounting plate for MicroRex 31 2.36
60 mm

2.07 1.73
52.6 mm 44 mm

45 mm
104.9 mm

2.6
4.13
U1 U2 1 4 2
0

Ref. no. 03749

L
including terminal cover
N

MicroRex-1 module 3.94

60 mm

0.69 1.73
17.5 mm 44 mm
86 mm
3.39

45 mm
1.77

15
 Rex - analog time switches
Front panel and wall mounting
EconoRex M

Technical data
Type EconoRex EconoRex EconoRex EconoRex
MT MQT MW MQW
Motor synchron quartz synchron quartz
Switching dial 24 h 7d
Running reserve none >100 h none >100 h
Switching step 10 min 1h
Min. switching time 20 min 2h
Switching accuracy +/-5 min +/-30 min
912 441 according +/-2.5 sec according +/-2.5 sec
Accuracy to frequency a day to frequency a day
Switching capacity
Resistive 230 V~ cos =1 20 A~ 16 A~ 20 A~ 16 A~

Reference
Incandescent lamps 230 V~ 4 A~ 4 A~
Inductive 230 V~ cos =0.6 12 A~ 12 A~
Time switch modules with flat plugs for Contacts 1 SPDT
panel mounting (without accessories) Operating temperature -10....+55 C
Protection IP30
EconoRex MT
24 h, without running reserve
Dimensions
912 441 230 V, 50 Hz
A12 463 120 V, 60 Hz 2.83 1.32
72 mm 35.5 mm
EconoRex MQT
0.83
24 h, with running reserve 21mm

912 427 230 V, 50/60 Hz

A12 464 120 V, 50/60 Hz

67 mm
2.64
72 mm
2.83
EconoRex MW
7 day, without running reserve

912 445 230 V, 50 Hz

A12 465 120 V, 60 Hz

EconoRex MQW
7 day, with running reserve

912 447 230 V, 50/60 Hz

A12 466 120 V, 50/60 Hz Wiring diagram Overview
Accessories

Wall mounting kit for EconoRex M

A00 020 includes base plate with terminals and terminal cover
A00 021 Adapter for DIN rail mounting
U1U2 2 4 1
Isolierung
6,3 x 0,8 2,5mm2
(I > 16A)
According to UL 60730-1, UL 60730-2-7, IEC 730-1, EN 60730-1,
L
VDE 0631-1, IEC 730-2-7, EN 60730-2-7, VDE 0631-2-7
N

Compact analog daily or weekly time switch for front panels and
surface mounting
with manual override
with 72 x 72 mm display conform to DIN EN 50 022 part C

Front panel Rear panel Wall mounting

38 mm
1.49
54 mm
2.12

R3
68 mm+0.7
2.67

1
2 .7 m
m
69
2
2.1 mm
54

Ref. 495 94

16
 Rex - analog time switches
MaxiRex 30A

NEW

A23 460

Reference Technical data

MaxiRex T 30A
Type T W QT QW
Daily time switch, without running reserve
Motor synchronous quartz controlled
A23 460 120V, 60Hz
Switching dial 24 h 7d
MaxiRex QT 30A Running reserve none 100h
Daily time switch, with 100h running reserve Switching step 10 min 1h 10 min 1h
A24 460 230V, 50/60Hz
A24 461 120V, 50/60Hz Min. switching time 20 min 2h 20 min 2h
Switching accuracy +/- 5 min/d +/- 30 min/d
MaxiRex W 30A Accuracy acc. to frequency +/- 1sec/day
Weekly time switch, without running reserve
Switching capacity
A23 160 120V, 60Hz
Resistive 230 V~ cos j =1 30 A
MaxiRex QW 30A Incandescent lamps 230 V~ 1800 W
Weekly time switch, with 100h running reserve Inductive 230 V~ cos j =0.6 20 A
A24 160 230V, 50/60Hz Contacts 1 SPST
A24 161 120V, 50/60Hz
Operating temperature -10 C... +55 C
Protection IP20
Accessory
A000 27 Terminal cover

According to UL 60730-1, UL 60730-2-7, EN 50022, EN 55014-1, EN 55014-2,

IEC 60730-1, EN 60730-1, VDE 0631-1, IEC 60730-2-7, EN 60730-2-7,
VDE 0631-2-7.

Robust analog daily and weekly time switch with REAL 30 Amp switching capacity,
for DIN rail mounting and wall mounting.

The MaxiRex 30A is our perfect solution to control your special applications with
heavy loads like:
the lighting of commercial billboards / sign boards
water heaters
hydrochlorinators
heating / ventilation systems
post lights
blowers
pool heaters
electric fences Dimensions with terminal cover
filters, pumps and conveyers 2.83 2.04
52 mm
72 mm

Wiring diagram Dimensions without terminal cover

2.04
2.83 52 mm
72 mm
134.2 mm
5.28
109.4 mm

112.2 mm

POWER
4.30

4.41

POWER LOAD
L N N L

POWER

POWER LOAD
L N N L
L
N 17
 Rex - analog time switches
defrost time switches
PolarRex

Technical data

Type PolarRex PolarRex PolarRex PolarRex

KT QKT KKT QKKT
Motor synchronous quartz synchronous quartz
Switching dial 24 h
Running reserve none >100 h none >100 h
Switching step 30 min
Min. switching time 1-60 min
A13 469 Switching accuracy (switching dial) +/-5 min
according to +/-1 sec according to +/-1 sec
Accuracy frequency a day frequency a day
Switching capacity
Resistive 230 V~ cos =1 16 A~
Reference Inductive 230 V~ cos =0.6 used as NO: 4 A~/used as NC 12 A~
Contacts 1 SPDT 2 SPDT
Defrost time switches without running reserve
Operating temperature -10....+55 C
PolarRex KT Protection IP 30
24 hour, 1 channel

A13 469 230V, 50Hz Wiring diagram Dimensions (mm)

PolarRex KKT 2.83
72 mm
2.10
53.4 mm
24 hour, 2 channel
19 18 17
20 16
21
12
A13 470 230V, 50Hz
15
22

14
24 23

A13 475 120V, 60Hz

13 12
9 3
1

72 mm
11

2.83
2

10
3

6
Defrost time switches with running reserve
9

113.7 mm
4
min. 5 8 min.
6 7

4.47
10 10
30 60
30 60

5
5

1
1

1 2
PolarRex QKT 1 STOP 2
24 hour, 1 channel
L N 1 2 3 4 5 6

A19 450 230V, 50/60 Hz

N
1.75
L
PolarRex QKKT 44.4 mm

24 hour, 2 channels

A19 447 230V, 50/60Hz

A19 448 120V, 50/60Hz

Programming
According UL 60730-1, UL 60730-2-7, IEC 730-1, EN 60730-1,
VDE 0631-1, IEC 730-2-7, EN 60730-2-7, VDE 0631-2-7.

The time switch has a 24h dial and one (1 channel) or two (2 channel)
continuously adjustable short time programs, which can repeated several
times in 24h. The programs duration has to be adjusted with a button
which is dedicated to a specific channel. The start of the program has to be
set on the dial by pulling a segment on the desired time. The shortest
duration between 2 programs is 30 min. The short time program can be
repeated up to 48 times in 24h. The beginning, the duration and the
number of the programs can be changed easily without any accessories. Programming the defrost times and visualization of the
working status with 2 green LEDs
Different types of mounting:
DIN rail
wall
DIN-rail Wall mounting

1.
28.512
mm

.137 x 1.57
3.5mm x 40mm
89 mm
3.50

10
10
30

30
60
1 5

60

10
5

30
1

60

10
30
60
1 5

.137 x 1.18
3.5mm x 30mm

18
 Rex - analog time relays

A63 207 A63 206

Reference Reference

A63 222 Star-Delta relay

A63 208 Multi-function relay
In addition to the afore mentioned functions (except the flashing relay)
the multifunctional relay offers you the following functions:

A63 205 ON-delay relay ON/OFF delay

Control input Y1 Control input Y1

Contact Contact

A63 204 OFF-delay relay Flasher (impulse starting)

Control input Y1 Control input Y1

Contact Contact

A63 209 Clock generator relay (impulse starting) Flasher (off-time starting)

Control input Y1 Control input Y1

Contact Contact

A63 207 Impulse former relay Passing contact

Control input Y1 Control input Y1

Contact Contact

A63 206 Flashing relay Additive ON delay

Control input Y1 Control input Y1

Contact Contact

Additive fleeting ON

According to UL 60730-1, UL 60730-2-7, VDE 0631-1 and 0631-2-7, EN 60 730-1 Control input Y1
and 60 730-2-7 Contact

Application:
To control single timer functions like:
illumination, ventilation, automation, control systems . . .
sealable cover
supply voltage: 12 V...230 V AC

19
 Rex - analog time relays

Technical data
Wiring diagram 7 domains of time:
Type Time relays

No. of modules (17.5 mm) 1 min. max.

Supply voltage 12....230 V AC/DC 0,1 s 1s
Power consumption ca. 2 W 1s 10 s
10 s 100 s
Precision of const. parameters +/- 0.2% of adjusted value
1 min. 10 min.
Setting accuracy +/-5% at 25 C 10 min. 100 min.
Switching capacity 1h 10 h
Resistive 230 V cos =1 8 A~ 10 h 100 h
Incandescent lamps 230 V 2 A~
Dimensions
Inductive 230 V cos =0.6 4 A~
Contacts 1 Channel 0.69 3.94
17.5 mm
60 mm
105 switching at 2000 VA
No. of cycles 107 mechanical switching 1.73
44 mm
Max. admissible length
of control wire 20 m
Operating temperature -20....+60 C
Protection IP20

83 mm
3.27

45 mm
1.77
Functions and switching diagrams Multifunctional relay (A63 208)
additionally to the previous mentioned functions, (except flashing
relay) the multifunctional relay offer the following functions:
ON-delay relay A63 205 ON/OFF delay

Control input Y1 Control input Y1

Contact Contact

OFF-delay A63 204 Flasher (impulse starting

Control input Y1 Control input Y1

Contact Contact

Clock generator relay A63 209 Flasher (OFF-time starting)

Control input Y1 Control input Y1

Contact Contact

Impulse former relay A63 207 Passing contact

Control input Y1 Control input Y1

Contact Contact

Flashing relay A63 206 Additive ON delay

Control input Y1 Control input Y1

Contact Contact

Additive fleeting ON

Control input Y1

Contact

20
 Hour counters
Front panel, Din-rail, flush-mounting
ContaRex

495 54 908 106 907 239

Dimensions

Reference ContaRex 48x48

ContaRex 48 x 48 front panel

495 54 120 V, 60 Hz
495 57 230 V, 60 Hz

45 mm
495 60 10 - 80 V, DC

1.77"
ContaRex 36 x 24 front panel

907 239 230 V, 60 Hz

1.89" 1.26" .23"
48 mm 32 mm 6 mm

According to UL 863, cUL C22.2, IEC 1010-1, EN 61010-1, VDE 0411 part 1
square 48 x 48 mm, IP 40
55 x 55 adapter included (48 x 48 mm version)
AC-version: = 0 to 99999.99 h
DC-version: = 0 to 999999.9 h
front panel mounting
45 mm
1.77"

0006723 h

Reference
1.89" 1.96"
48 mm 50 mm
ContaRex round, 80 mm 2.16"
1.77"
55 mm 45 mm

495 63 10...80 V 10% DC

ContaRex 80mm
.078"
2 mm
Accessories

908 105 Frame 72 x 72 mm

908 106 Frame 55 x 55 mm
71 mm -0/+1
2.79

According to UL 863, cUL C22.2, IEC 1010-1, EN 61010-1, VDE 0411 part 1
round, 80 mm, IP 67
protected against vibrations by a rubber buffer ring
DC-version: 0 to 99999.9 h
front panel mounting 3.14" 2" .7"
80 mm 51 mm 18 mm

ContaRex 36x24
22mm x33mm
.866"x1.29"
24 mm
.944"

1.41" .31"
36 mm 8mm 2.16"
55 mm

21
 Hour counters
Din-rail mount
Rex 2000 HC2

961 103

Dimensions

Reference

Rex2000 HC2 3.94

60 mm
961 102 230 V, 60 Hz
961 103 120 V, 60 Hz 1.4 1.73
961 104 24 V, 50 Hz 35.6 mm 44 mm
A61 108 12-36 V DC

83 mm
3.27
According to UL 863, cUL C22.2, IEC 1010-1, EN 61010-1, VDE 0411 part 1

45 mm
1.77
Analog modular hour run indicator in for DIN rail mounting
easy and quick mounting on DIN rail by using the 2 locking clamps
sealable cover

22
Notes

23
 Baco Controls, Inc.
P.O. Box 570, Cazenovia, NY 13035
Phone: (315) 655-8372 Fax: (800) 356-3981
Web: www.bacocontrols.com Email: sales@bacocontrols.com