PJC

Instantaneous Overcurrent

Instantaneous overcurrent or undercurrent protection of AC and DC circuits and machines.

Features and Benefits

I I I I

Protection and Control

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Self-reset or manual-reset relays Mechanical target available Up to 3 independent units per case Molded or drawout case available

Instantaneous O/C and U/C

Applications
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Feeder circuit overcurrent protection High speed, non-directional AC/DC current

GE Multilin

PJC Instantaneous Overcurrent

Application
General Service: PJC relay is a high-speed, non-directional current relay that is designed for general service. Feeder Circuit Overcurrent Protection: is a common application for the PJC relay where time delay and directional selectivity are not required and where very short tripping times on high-fault currents are desired. On applications requiring time delay or directional selectivity, IFC or IBC should be used.

Continuous-current Rating: The relay coils are continuously rated as specified on the nameplate for frequencies of 25 to 60 Hz and DC. Ratings for continuous operation on AC are for the non picked-up position only. However, the limitation is mechanical, not thermal, and the relay life expectancy under continuously picked-up conditions is a matter of months. Self-or Hand-reset: Relays listed in this section have self-resetting contacts and hand-reset targets. Special models that are not listed are available having hand-reset contacts. Calibration: The standard relays are calibrated at 60 Hz. For 25 or 50 Hz and DC applications, this calibration is correct within approximately 10 percent. Mounting: The molded case relays are surface mounted and have studs for back connection. The draw out case relays can be surface or flush mounted.

Contact Ratings
The current-closing rating of the contacts is 30 A. The current carrying rating is 5 A continuously or 30 A for 2 sec.
Overcurrent Ratings

Continuous Rating (A)

0.06 0.12 0.2 0.225 0.3 0.6 1 1.5 3 5 6 10 12 25 25 25 0.02 0.04 0.05 0.075 0.1 0.2 0.4 0.5 1 2 2 4 4 10 20 40

Calibration Points
0.032 0.064 0.08 0.12 0.16 0.32 1.6 0.8 1.6 8 3.2 16 6.4 16 32 64 0.05 0.1 0.125 0.188 0.25 0.5 4 1.25 2.5 20 5 40 10 25 50 100 0.08 0.16 0.2 0.3 0.4 0.8 10 2 4 50 8 100 16 40 80 160

Description
The PJC is a plunger relay that operates on the principle of electromagnetic attraction. The contacts are opened or closed by an armature which is attracted vertically into a small solenoid. Generally, the PJC is a single element relay, but these units can be mounted in the draw out case to provide a 2 or 3-unit relay. This grouping of units in a draw out case saves valuable panel space and provides for easy testing and checking. The basic PJC11, PJC12, PJC14 and PJC15 relays have mechanical targets. The PJC32 line of relays has a somewhat smaller base and thus allows 3 units to be mounted horizontally in the S1 or S-2 case with the conventional 0.2/2 A target sealin.

Contact Interrupting ratings in A

AC Circuits Noninductive V A
115 230 460 ---5 2 1 ----

Inductive A
2 1 0.5 ----

DC Circuits Noninductive V A
24 48 125 250 5 2 1 0.3

Inductive A
1.0 0.5 0.3 0.15

Table 1. Contact availability

Relay Characteristics
High-speed Operation: The contact closing time is approximately 1 cycle (60 Hz basis) at twice the pickup setting. High Dropout: Contacts reset at approximately 90 to 95 percent of pickup on AC and 70 to 85 percent of pickup on DC when the relay has at least one circuit-closing contact.

Relay Models
PJC11A, 11X, 11Z, 11AV, 11AW, 12A, 12D PJC14C, 14D, 14F PJC32D, 32E PJC21A, 32C, 32F, 32G, 32H, 32J, 32L PJC15F

Number Cont. Per Unit Standard

2 4 2 2 4 2 N.O. 2 N.O. (Code 20) (Code 20) 2 N.O. and 4 N.O. 2 N.C. (Code 22) (Code 40) 1 N.O. and 1 N.C. 2 N.O. 4 N.O. -------

Contact Types Optional

1 N.O. and 2 N.C. 1 N.C. ------(Code 11) (Code 02) 3 N.O. and 2 N.O. and 1 N.O. and 4 N.C. 1 N.C. 2 N.C. 3 N.C. (Code 31) (Code 22) (Code 13) (Code 04) -------------------------

---------------Unless specified, standard contact arrangement will be supplied. To order other than standard contact arrangement, place the contact code behind the model number. Example: 12PJC11AV3A-Code 11. N.O. = normally open N.C. = normally closed

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PJC Instantaneous Overcurrent

Connection Diagrams
Fig. 1. Internal connections diagram for the PJC32C relay (front view) Fig. 2. Internal connections diagram for the PJC32D relay (front view)

13 12 14

15 16 *

17 18 *

19 20

13 12 * 14

15 16 *

17 18 *

19 20

SI SI LEFT SI LEFT UNIT * *

SI SI

SI SI

SI SI

SI SI MIDDLE SI

SI SI RIGHT SI RIGHT UNIT *

5

MIDDlLE SI RIGHT SI MIDDLE UNIT * RIGHT UNIT *

LEFT SI LEFT UNIT * *

MIDDLE UNIT

9 10 8 = SHORT FINGER * (6375726-5)

7 9 10 6 8 = SHORT FINGER *

Fig. 3. Internal connections diagram for the PJC32E relay (front view)

Fig. 4. Internal connections diagram for the PJC32F relay (front view)

13
11 12 13 14 15 16 19 20

15 14 16

17 18

19 20

12

*
* * * *MIDDLE TARGET * * RIGHT TARGET

* S1 MIDDLE S1 LEFT UNIT MIDDLE UNIT

* S1 RIGHT S1 RIGHT UNIT

S1 LEFT S1

MIDDLE UNIT LEFT LEFT UNIT TARGET

RIGHT UNIT

1 2

3 4

5 6

9 8 10 = SHORT FINGER *

1 2

3 4

7 9 10 6 8 * = SHORT FINGER (402A940-2)

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PJC Instantaneous Overcurrent

Connection Diagrams
Fig. 5. Internal connections diagram for the PJC32G relay (front view) Fig. 6. Internal connections diagram for the PJC32H relay (front view)

LEFT HAND CONTACTS

RIGHT HAND CONTACTS

LEFT MIDDLE RIGHT

S1

S1 NOT USED IN FORMS 123 TO 189 S1 S1 S1

S1

*
1 3 5 7 9

1 2

3 4

5 6

10

10 8 =SHORT FINGER * (K-6154875-5)

(226A7242)

Fig. 7. Internal connections diagram for the PJC32J relay (front view)

Fig. 8. Internal connections diagram for the PJC32L relay (front view)

13 12 14

15 16

17 18

19 20

LEFT HAND CONTACTS

RIGHT HAND CONTACTS

LEFT MIDDLE RIGHT

* L LEFT TARGET

* R

* L

* R

MIDDLE UNIT

MIDDLE TARGET R L

RIGHT TARGET RIGHT UNIT

T T

LEFT UNIT

1 2

3 4

9 8 6 10 * = SHORT FINGER (104A8955-1)

1 2

3 4

5 6

7 8

9 10

* = SHORT FINGER (O127A9547-2)

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PJC Instantaneous Overcurrent

Selection Guide
Molded Case Relays DC, OR 25, 50, 60 HZ AC Rating (A) Continuous One Sec
0.06 0.12 0.2 0.225 0.3 0.6 1.5 3 6 12 25 40 40 1.5 3 6 12 25 40 40 2.8 5.7 9.2 11.4 18.2 36.8 75 150 275 280 500 500 500 75 150 275 280 500 500 500

Calibraton Range
0.02-0.08 0.04-0.16 0.05-0.7 0.075-0.3 0.1-0.4 0.2-0.8 0.5-2 1-4 2-8 4-16 10-40 20-80 40-160 0.5-2 1-4 2-8 4-16 10-40 20-80 40-160

Model Number Self-Reset Hand Reset

PJC11A28 A29 A10 A30 A9 A8 A1 A2 A3 A4 A5 A6 A7 PJC14D1 D2 D3 D4 D5 D6 D7 ---------------PJC12A10 A1 A2 A3 A4 A5 A6 A7 PJC14F1 F2 F3 F4 F5 F6 F7

Contacts

Approx. Wt. in lbs (kg) Net Ship

2 Contacts (If contact arrangement is not specified 2 N.O. will be supplied)

2.5 (1.1)

4 (1.8)

4 Contacts (If contact arrangement is not specifed 2 N.O. & 2 N.C. will be supplied)

Drawout Case Relays Ratings (A) Continuous One Second Calibration Range ONE UNIT
0.12 0.3 0.6 1.5 3 6 12 25 25 25 1.5 3 6 12 25 25 25 5.7 18.2 36.8 75 150 275 275 275 275 275 75 150 275 275 275 275 275 0.04-0.16 0.1-0.4 0.2-0.8 0.5-2 1-4 2-8 4-16 10-40 20-80 10-160 0.5-2 1-4 2-8 4-16 10-40 20-80 40-160 PJC11AV23A AV10A AV8A AV1A AV2A AV3A AV4A AV5A AV6A AV7A PJC14C1A C2A C3A C4A C5A C6A C7A ---------2 Contacts PJC12D1A (If contact D2A arrangement is D3A not specified D4A 2 N.O. will be supplied) D5A D6A D7A ---4 Contacts ---(If contact ---arrangement is ---not specifed 2 N.O. & 2 N.C. ---will be ---supplied) ----

Model Number Self-Reset Hand Reset

Contacts

Case Size

Approx. Wt. in lbs (kg) Net Ship

S1

8 (3.6)

12 (5.4)

N.O. contact may not remain closed when relay is in the latched-up position.

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PJC Instantaneous Overcurrent

Selection Guide
Drawout Case Relays (cont...) TWO UNITS (BOTH UNITS RATED ALIKE) Ratings (A) Continuous One Second Calibration Range
1.5 3 6 12 25 25 25 1 5 10 1.5 3 6 12 25 25 25 1.5 3 6 12 25 25 25 1.5 3 6 12 25 25 25 75 150 275 275 275 275 275 73.5 375 500 75 150 275 275 275 275 275 75 150 275 275 275 275 275 75 150 275 275 275 275 275 0.5-2 1-4 2-8 4-16 10-40 20-80 40-160 0.4-10 2-50 4-100 0.5-2 1-4 2-8 4-16 10-40 20-80 40-160 0.5-2 1-4 2-8 4-16 10-40 20-80 40-160 0.5-2 1-4 2-8 4-16 10-40 20-80 40-160

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Model Number Self-Reset Hand Reset

PJC11AW11A AW12A AW13A AW14A AW15A AW16A AW17A PJC11X2A X3A X1A PJC11Z1A Z2A Z3A Z4A Z5A Z6A Z7A PJC15F1A F2A F3A F4A F5A F6A F7A PHC21A1A A2A A3A A4A A5A A6A A7A ----------------------------------------------------------------------------------------------

Contacts
2 Contacts (If contact arrangement is not specified 2 N.O. will be supplied)

Case Size

Approx. Wt. in lbs (kg) Net Ship

S2

10 (4.5)

15 (6.8)

THREE UNITS (ALL UNITS RATED ALIKE)

14 (6.4) 2 Contacts (If contact arrangement is not specified 2 N.O. will be supplied) 20 (9.1)

M2 13 (5.9) 19 (8.6)

4 N.O.

M2

14 (6.4)

20 (9.1)

ONE UNIT WITH 0.2/2.0 A TARGET AND SEAL-IN

2 N.O.

S1

8 (3.6)

12 (5.4)

THREE UNITS WITH OR WITHOUT 0.2/2.0 A TARGET AND SEAL-IN Contacts Model Number Number of Targets Seal-in (Each Unit)

Int. Conn. Diagram

Approx. Wt. in lbs (kg) Net Ship

PJC32C*A 2 N.O. 3 Targets Yes See Figure 3 PJC32D*A 1 N.O. & 1 N.C. 3 Targets Yes See Figure 4 PJC32E*A 1 N.O. & 1 N.C. 3 Targets No See Figure 5 PJC32F*A 2 N.O. 3 Targets Yes See Figure 6 PJC32G*A 2 N.O. See Figure 7 PJC32H*A 2 N.O. 3 Targets Yes See Figure 8 PJC32J*A 2 N.O. 3 Targets No See Figure 9 PJC32L*A 2 N.O. 2 Targets No See Figure 10 N.O. contact may not remain closed when relay is in the latched-up position. * Complete the model number by selecting the proper number from the table below.

12 (5.4)

18 (8.2)

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PJC Instantaneous Overcurrent

Calibration Range For Middle Unit(A)

0.5-2 1-4 2-8 4-16 10-40 20-80 40-160

0.5-2
23

1-4
24 34

Model Number* Calibration Range for Left and Right Units (A) 2-8 4-16 10-40
25 35 45 26 36 46 56 27 37 47 57 67

20-80
28 38 48 58 68 78

40-160
29 39 49 59 69 79 89

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