This MSD Solid State Relay Block cleans up wiring by replacing 4 standard relays in a single compact module. Four independent channels can be activated using either power or ground, with each channel capable of handling 50 amps for up to 8 seconds or 20 amps continuous. Combined, the 4 channels can deliver up to 200 amps momentary or 80 amps constant, enough to control electric fans, water pumps, nitrous solenoids, auxiliary lighting, and other accessories that would normally require a relay.Specifications: Part Type: Multi-Purpose Relay Kit Color: Red Channel Count: 4 Amperage Rating: 20A continuous per channel, 50A for up to 8 seconds Combined Rating: Up to 200A momentary / 80A constant Part Number: 7564 Built-in over-temp, short circuit, and overload protection; mounting tabs rotate 90° for flexible installation, and channels can be run in parallel for loads exceeding a single channel's rating.FAQHow many relays does the MSD 7564 replace?It replaces 4 standard automotive relays in a single solid-state module.What is each channel rated for?20 amps continuous, or 50 amps for up to 8 seconds, with a combined rating up to 200 amps momentary or 80 amps constant across all 4 channels.What safety protection is built in?Automatic over-temp, short circuit, and overload protection, along with LED status indicators for each channel.How is each channel activated?Each of the 4 independent channels can be triggered using either a power or ground signal.{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"How many relays does the MSD 7564 replace?","acceptedAnswer":{"@type":"Answer","text":"It replaces 4 standard automotive relays in a single solid-state module."}},{"@type":"Question","name":"What is each channel rated for?","acceptedAnswer":{"@type":"Answer","text":"20 amps continuous, or 50 amps for up to 8 seconds, with a combined rating up to 200 amps momentary or 80 amps constant across all 4 channels."}},{"@type":"Question","name":"What safety protection is built in?","acceptedAnswer":{"@type":"Answer","text":"Automatic over-temp, short circuit, and overload protection, along with LED status indicators for each channel."}},{"@type":"Question","name":"How is each channel activated?","acceptedAnswer":{"@type":"Answer","text":"Each of the 4 independent channels can be triggered using either a power or ground signal."}}]}