70 WATTS REL-70

SINGLE/MULTI OUTPUT AC-DC OUTPUT SPECIFICATIONS

FEATURES: Total Output Power at 50°C(1) 50W Convection Cooled(16)(18)
(See Derating Chart) 70W 300LFM Forced-Air Cooled(15)(17)(19)
• Compact 2.5 x 4.5" x 1.2" Size • IEC 60601-1 3rd ed. Medical Cert. Output Voltage Centering Output 1:  0.5% (All outputs at 50% load)
• 2 Year Warranty • IEC 62368-1 2nd Certification Output 2,3,4:  5.0%
• Universal 85-264V Input • IEC 60601-1-2 4th ed. EMC Output Voltage Adjust Range Output 1: 95 - 105%
• One to Four Outputs • Class B Emissions per EN55011/32 Load Regulation Output 1: 0.5% (10-100% load change)
• High Efficiency • RoHS Compliant Output 2: 5.0%
• 0-70°C Operating Temperature • Optional Chassis/Cover (4001-5) 8.0%
(2001) 8.0%
Output 3: 5.0%
Output 4: 5.0%
Source Regulation Outputs 1 – 4: 0.5%
Cross Regulation Outputs 2 – 4: 5.0%
Output Noise Outputs 1 – 4: 1.0%
Turn on Overshoot None
Transient Response Outputs 1 – 4
Voltage Deviation 5.0%
Recovery Time 500S
Load Change 50% to 100%
Output Overvoltage Protection Output 1: 110% to 150%
Output Overpower Protection 110-160% rated Pout, cycle on/off, auto recovery
CHASSIS/COVER OPEN FRAME Hold Up Time 16mS min., Full Power, 85V Input
SAFETY SPECIFICATIONS Start Up Time 4 Seconds, 120V Input
UL 62368-1:2014, 2nd Edition INPUT SPECIFICATIONS
Underwriters Laboratories CAN/CSA-C22.2 No. 62368-1-14 Protection Class I
File E137708/E140259 AAMI/ANSI ES60601-1:2005/(R) 2012 Source Voltage 85 – 264 Volts AC
CAN/CSA-C22.2 No. 60601-1:2014 Frequency Range 47 – 63 Hz
CB Reports/Certificates (including all IEC 62368-1:2014, 2nd Edition Peak Inrush Current 40A
National and Group Deviations) IEC 60601-1:2005/A1:2012 Efficiency 78% Typ., Full Power, 230V, varies by model
Power Factor 0.95 (Full Power, 230V)
TUV SUD America
EN 62368-1:2014, 2nd Edition ENVIRONMENTAL SPECIFICATIONS
EN 60601-1:2006/A1:2013 Ambient Operating 0C to + 70C
Temperature Range Derating: See Power Rating Chart
Low Voltage Directive (2014/35/EU of February 2014) Ambient Storage Temp. Range - 40C to + 85C
RoHS Directive (Recast) (2011/65/EU of June 2011) Temperature Coefficient Outputs 1 – 4: 0.02% /C
Electrical Equipment (Safety) Regulations 2016 SI No. 1101 3,000m ASL – Operating – Medical 60601-1
Altitude 5,000m ASL – Operating – ITE/AV – 62368-1
Restriction of the Use of Certain Hazardous Substances in EEE Regulations 12,192m ASL – Non-Operating
2012 SI No. 3032 + 2019 SI No.492
GENERAL SPECIFICATIONS
Means of Protection
MODEL LISTING Primary to Secondary 2MOPP (Means of Patient Protection)
MODEL NO. OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4 Primary to Ground 1MOPP (Means of Patient Protection)
Secondary to Ground Operational Insulation(Consult factory for 1MOPP)
REL-70-4001 +3.3V/6A +5V/5A +12V/2A(21) -12V/2A(21) Dielectric Strength(8, 9)
REL-70-4002 +5V/6A +3.3V/5A +12V/2A(21) -12V/2A(21) Reinforced Insulation 5656 VDC, Primary to Secondary
REL-70-4003 +5V/6A +3.3V/5A +15V/2A(21) -15V/2A(21) Basic Insulation 2121 VDC, Primary to Ground
REL-70-4004 +5V/6A -5V/5A +12V/2A(21) -12V/2A(21) Operational Insulation 707 VDC, Secondary to Ground
REL-70-4005 +5V/6A -5V/5A +15V/2A(21) -15V/2A(21) Leakage Current
REL-70-4006 +5V/6A +24V/2A +12V/2A(21) -12V/2A(21) Earth Leakage <300µA NC, <1000µA SFC
REL-70-4007 +5V/6A +24V/2A +15V/2A(21) -15V/2A(21) Touch Current <100µA NC, <500µA SFC
REL-70-4009 6.7V/5A 5V/4A +15V/2A(21) -15V/2A(21) Power Fail Signal(14) Logic low with input power failure 10 ms
minimum prior to Output 1 dropping 1%
REL-70-3001 +5V/6A +12V/2A -12V/2A(21)
Remote Sense (singles only)(10) 250mV compensation of output cable losses
REL-70-3002 +5V/6A +15V/2A -15V/2A(21)
Mean-Time Between Failures 100,000 Hours min., MIL-HDBK-217F, 25° C, GB
REL-70-3003 +5.1V/6A +7.5V/2A -7.5V/2A(21)
Weight 0.60 Lbs. Open Frame
REL-70-3004 +3.3V/6A +7V/5A +12V/2A(21)
1.00 Lbs. Chassis and Cover
REL-70-2001 +3.3V/6A +5V/5A
EMC SPECIFICATIONS (IEC 60601-1-2:2014, 4 TH ED./IEC 61000-6-2:2005)
REL-70-2002 +5V/6A +12V/4A
Electrostatic Discharge EN 61000-4-2 8KV contact / 15KV air discharge A
REL-70-2003 +5V/6A +24V/2A
Radiated Electromagnetic Field EN 61000-4-3 80MHz-2.7GHz, 10V/m, 80% AM A
REL-70-2004 +12V/3A -12V/3A
Electrical Fast Transients/Bursts EN 61000-4-4 2 KV, 5KHz/100KHz A
REL-70-2005 +15V/3A -15V/2A
REL-70-2006 +5.5V/6A -5.5V/5A Surge Immunity EN 61000-4-5 2 KV line to earth / 1 KV line to line A
Conducted Immunity EN 61000-4-6 0.15 to 80MHz, 10V, 80% AM A
REL-70-1001 2.5V/14A(20)
Magnetic Field Immunity EN 61000-4-8 30A/m, 60 Hz. A
REL-70-1002 3.3V/14A(20)
Voltage Dips EN 61000-4-11 0% UT, 0.5 cycles, 0-315° 100/240V A/A
REL-70-1003 5V/14A(20)
0% UT, 1 cycles, 0° 100/240V A/A
REL-70-1004 12V/5.8A 40% UT, 10/12 cycles, 0° 100/240V B/A
REL-70-1005 15V/4.7A 70% UT, 25/30 cycles, 0° 100/240V B/A
REL-70-1006 24V/2.9A Voltage Interruptions EN 61000-4-11 0% UT, 300 cycles, 0° 100/240V B/B
REL-70-1007 28V/2.5A Radiated Emissions EN 55011/32 Class B
REL-70-1008 48V/1.5A Conducted Emissions EN 55011/32 Class B
ORDERING INFORMATION Harmonic Current Emissions EN 61000-3-2 Class A
Consult factory for alternate output configurations. Voltage Fluctuations/Flicker EN 61000-3-3 Compliant
Consult factory for positive, negative or floating outputs.
Please specify the following optional features when ordering: All specifications are maximum at 25°C/70W unless otherwise stated, may vary by model and are
CH - Chassis I/O - Isolated Outputs subject to change without notice.
CO - Cover TS - Terminal Strip

INTEGRATED
POWER DESIGNS 300 Stewart Road ■ Wilkes-Barre, PA 18706 ■ Phone: (570) 824-4666 ■ Fax: (570) 824-4843 ■ Email: sales@ipdpower.com ■ Web: www.ipdpower.com
 REL-70 MECHANICAL SPECIFICATIONS APPLICATIONS INFORMATION
1. Each output can deliver its rated current but Total Output Power must not exceed 70W, as
determined by the cooling method.
2. Generally, adequate cooling is provided when semiconductor case temperatures do not
exceed 70°C rise and transformer temperature does not exceed 60°C rise at any
specified ambient temperature.
3. Sufficient area must be provided around power supply to allow natural movement of air to
develop in convection-cooled applications.
4. This product is intended for use as a professionally-installed component within information
technology, industrial, and medical equipment and is not intended for stand-alone
operation.
5. A minimum load of 10% is required on Output 1 to ensure proper regulation of remaining
outputs.
6. This product includes only one fuse in the input circuit. In consideration of Clause 8.11.5
of IEC 60601-1:2005, a second fuse may be required in the end product.
7. Peak-to-Peak Output Ripple and Noise is measured directly at the output terminals of the
power supply, without the use of the probe ground lead or retractable tip (tip-and-barrel
method), 20 MHz bandwidth.
8. This product was type-tested and safety-certified using the dielectric strength test voltages
listed in Table 6 of IEC 60601-1:2005. In consideration of Clause 8.8.3, care must be
taken to insure that the voltage applied to a reinforced insulation does not overstress
different types and levels of insulation. Primary and secondary-to-ground capacitors may
need to be disconnected prior to performing a dielectric strength test on the power supply
or the end product. It is highly recommended that the DC test voltages listed in DVB.1,
Annex DVB of UL 60601-1 1st Edition are not exceeded during a production-line dielectric
strength test of the assembled end product. Please consult factory for further information.
9. This power supply has been safety-approved and final-tested using a DC dielectric
strength test. Please consult factory before performing an AC dielectric strength test.
10. Remote-Sense terminals may be used to compensate for cable losses up to 250mV

(single output models only). The use of a twisted pair, decoupling capacitors and an
appropriately-rated low-impedance capacitor connected across the load will increase
noise immunity.
11. Maximum screw penetration into bottom chassis mounting holes is 0.100 inches.
Maximum screw penetration into side chassis mounting holes is 0.250 inches.
12. To comply with emissions specifications, all four mounting hole pads must be electrically
connected to a common metal chassis. Chassis/Cover option is recommended. Refer to
Operating Instructions for additional information.
 13. Common RF shielding precautions may need to be taken to assure emissions
compliance. Refer to Operating Instructions for additional information.
14. Power-Fail (AC-Good) feature provides a logic-low warning signal from an open collector
transistor output 10ms prior to loss of output from AC failure, 5V/10mA.
15. 300LFM minimum of airflow must be maintained one inch above all points of top-side
components or cover when forced-air cooling is required.
16. Total power must not exceed 50W with convection cooling on open-frame models.
17. Total power must not exceed 70W with 300LFM forced-air cooling on open-frame models.
18. Total power must not exceed 40W with convection cooling and Chassis/Cover option.
19. Total power must not exceed 70W with 300LFM forced-air cooling and Chassis/Cover
option.
20. Rated 10A with convection cooling.
21. Rated 1.5A with convection cooling.

MAXIMUM OUTPUT POWER vs. AMBIENT TEMPERATURE

70

60 FORCED AI R COOLI NG
Output Power (Watts)

50
CONVECTI ON COOLI NG
40

30
CONVECTI ON COOLI NG
20 WI TH CHASSI S/ COVER

10

0
0 10 20 30 40 50 60 70
Ambient Temperature (C)

CONNECTOR SPECIFICATIONS
P1 AC Input 0.156 friction lock header mates with Tyco 640250-3 or
equivalent crimp terminal housing with Tyco 3-640706-1 or
equivalent crimp terminal.
P2 DC Output 0.156 friction lock header mates with Tyco 770849-8 or
(Single) equivalent crimp terminal housing with Tyco 3-640707-1 or
equivalent crimp terminal.
P2 DC Output 0.156 friction lock header mates with Tyco 770849-8 or
(Multiple) equivalent crimp terminal housing with Tyco 3-640707-1 or
equivalent crimp terminal.
G Ground 0.187 quick disconnect terminal.
P3 P.F./Sense 0.100 breakaway header mates with Molex 22-55-2061 or
REV. V 10/06/2022

(Single) equivalent crimp terminal housing with Molex type 71851 or

equivalent crimp terminal.
P3 Power Fail 0.100 breakaway header mates with Molex 50-57-9002 or
(Multiple) equivalent crimp terminal housing with Molex type 71851 or
equivalent crimp terminal.

INTEGRATED
POWER DESIGNS 300 Stewart Road ■ Wilkes-Barre, PA 18706 ■ Phone: (570) 824-4666 ■ Fax: (570) 824-4843 ■ Email: sales@ipdpower.com ■ Web: www.ipdpower.com