Genset Controls
Relay card
Relay and PCB cards used inside genset control panels. Send the number printed on the card, or photos of both sides if the marking has worn off.
What to send us
The number stamped on the old part is the quickest route. If it has worn off, the engine or genset model and serial number usually gets us there. Photos help more than descriptions.
We cross-check whatever you send against the OEM catalogue and confirm the match with you before anything ships.
About this range
A relay card is the interface between the controller's low-current outputs and the heavy circuits on the engine: crank, fuel solenoid, stop solenoid and the auxiliary functions. The controller signals, the card switches. It exists so the controller never carries starter or solenoid current directly.
Cards are usually 12 or 24 V DC to match the set's starting system, and they carry the maker's own number rather than a generic one. Kirloskar's interface cards run in the 3H series, Cummins PowerCommand cards in the 0300 and 0327 series. Some are direct replacements for older cards and some need a conversion kit, which is worth checking before ordering.
A card that has failed often shows as an engine that cranks but will not fuel, or one that starts and then stops when the controller hands over. Send the number off the card and a photograph of both sides.
Products in this category
24 listed
Open one for its specification and the part numbers it covers. We stock more than we list, so send us the number even if yours isn’t here. You can also look a number up in the part number index.
Onan engine interface PCB 300-4083
- 300-4083
Cummins PCC 3100 display card 300-4080-02
- 300-4080-02
RRA plate and diode plate for Stamford alternators
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Cummins PowerCom ACMD display card 0300-6086
- 0300-6086
Generator relay card A050Z334
- A050Z334
- A050Z342
Cummins relay control 0307-3187
- 0307-3187
- 0307-3190
- 0307-3191
- +7 more
Three-way relay card A054H321
- A054H321
- A066H855
- A066U516
- +4 more
BGLI BGR210 1A 12 V relay
- BGR2101A
- BGR 210 1A
Cummins sensor harness 3056356 / 3056357
- 3056356
- 3056357
Generator relay card UL5303NO-C-DP-72, 12/24 V
- UL5303NO-C-DP-72
Cummins PCC 3100 display card 300-4286
- 0300-4286
- 300-4286
Kirloskar relay card 3H.982.31.0
- 3H.982.31.0
Kirloskar relay card 3H.989.12.0.0
- 3H.989.12.0.0
- 3H.989.12.0.00
- 3H98912000
Kirloskar DC interface card V3
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Cummins PCC 2100 bar graph card 300-5180
- 0300-5180
- 0300-5179
Genset start/stop relay card A031B582
- A031B582
Relay module card 53141
- 53141
Cummins actuator and connector harness 3875359
- 3875359
Cummins PowerCom base card 0300-6085
- 0300-6085
Cummins PCC 3100 customer interface card 300-4462-01
- 300-4462-01
- 0300-4462-01
- 0300-4462
- +3 more
Cummins PCC 3100 circuit board 300-4079
- 300-4079
- 0300-4079
Starter protection unit 5277216
- 5277216
Cummins PCC AUX 101 / 102 / 103 card 327-1536
- 327-1536
- 0327-1536
12/24 V AMF panel relay
View partMore in genset controls
5 of 5
Generator controller
62Controllers for diesel generator sets, including replacements for the common control ranges. Tell us the controller's model number and what the set has to do: auto start, mains failure, paralleling.
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Generator control panel
1Complete control panels for diesel gensets. We build these at the shop, so a panel can be made to your set's rating and specification instead of forcing a stock unit to fit.
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Automatic voltage regulator
8AVRs for generator alternators. Send the alternator make and model as well as the AVR's own number. The regulator has to suit the alternator, not the engine.
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Battery charger
2Battery chargers for genset starting batteries. Tell us the battery voltage and the charging current the set needs.
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Genset accessories
10The parts that go around the set rather than inside it: stop solenoids, anti-vibration mounts and similar fittings. Tell us the set's make and rating and we'll confirm what suits it.
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