Description
Part Number: 75643
MSD Stand Alone 4-Channel Solid State Relay Module – Black
Eliminate mechanical relay clutter and simplify high-performance motorsport electrical wiring with 4 independent 20-Amp solid-state channels.
Key Features & Highlights
- ☑ 4 Independent Channels: Replaces four traditional mechanical relays in one compact, lightweight black anodized module.
- ☑ High Current Capability: Rated at 20 Amps continuous power per channel (up to 50 Amps peak for 8 seconds per channel).
- ☑ Flexible Circuit Triggering: Each individual channel can be activated using either a 12V positive signal or ground switch.
- ☑ Parallel Wiring Support: Combine channels in parallel to power high-draw equipment requiring more than 20 Amps continuous.
- ☑ Built-In Circuit Protection: Features automatic over-temperature, short-circuit, and overload safeguard protection.
- ☑ LED Status Diagnostics: Onboard diagnostic LEDs indicate active status and circuit faults instantly.
- ☑ Versatile Mounting: Mounting tabs rotate 90 degrees to simplify installation in tight race chassis spaces.
Technical Specifications
| Brand | MSD |
|---|---|
| Manufacturer Part Number (MPN) | 75643 |
| Module Type | Stand Alone Solid State Relay (SSR) Block |
| Channel Count | 4 Channels |
| Continuous Amperage Rating | 20 Amps per channel (80 Amps total continuous) |
| Peak Amperage Rating | 50 Amps per channel (up to 8 seconds) |
| Activation Trigger | 12V Power (+) or Ground (-) per channel |
| Finish / Color | Black Anodized Finish |
| Circuit Protection | Over-Temp, Overload & Short Circuit Protection |
| Diagnostics | Onboard Status & Fault Indicator LEDs |
What’s Included in the Box
- 1 x MSD 75643 4-Channel Solid State Relay Module (Black)
- 1 x Mounting Hardware Pack
- 1 x Quick-Start Wiring Diagram & Guide
Engineered by MSD Ignition for extreme reliability in harsh race environments, the 75643 Solid State Relay Block protects vital electrical systems while keeping chassis wiring exceptionally clean. Order with confidence from JP Racing for expert UK motorsport support and express UK delivery.
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