MSD High-Current Solid-State Relay 4-Channel 35A Black 75643-HC
Part Number: MSD75643-HCMSD IGNITION
- SKU:
- MSD75643-HC
- MPN:
- 75643-HC
- Condition:
- New
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
Description
If you're running multiple high-draw electrical accessories—whether it's electric cooling fans, nitrous solenoids, auxiliary lighting, or water pumps—a traditional relay setup becomes bulky and unreliable. The MSD 75643-HC replaces that maze of mechanical relays with a single, compact solid-state unit that handles up to 140 amps of continuous current across four independent channels, eliminating failure points and simplifying your wiring harness. With built-in diagnostics, over-temperature protection, and PWM capability for variable power control, this relay gives you the precision control and safety margin serious builds demand.
- Four independent channels
- 35 amps continuous per channel
- 100 amps peak (8 seconds)
- 140 amps total capacity
- 7-20 volt operation
- PWM-capable, 15 Hz frequency
- 50-90% duty cycle range
- Over-temperature protection
- Short circuit protection
- Overload protection
- Channel reset function
- Diagnostic LED indicators
- Single-wire activation
- 90° rotatable mounting tabs
- Black finish
- Street and racing legal
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