{"product_id":"msd-ignition-solid-state-high-current-relay-block-75643-hc","title":"MSD Ignition Solid-State High Current Relay Block (MPN: 75643-HC)","description":"\u003ch2\u003eStreamline your electrical connections with advanced relay technology.\u003c\/h2\u003e\r\n\u003cp\u003eThe MSD Ignition Solid-State High Current Relay Block is designed to simplify wiring by replacing four standard relays with a single, compact module. This relay block features four independent channels, each capable of handling up to 35 Amperes of continuous current, allowing for a total power capacity of 140 Amperes. It supports various applications including electric fans, water pumps, nitrous solenoids, and auxiliary lighting, making it a versatile solution for managing electrical accessories.\u003c\/p\u003e\r\n\u003cp\u003eIncorporating advanced features such as Pulse Width Modulation (PWM), this relay block can control output at a frequency of 15 Hertz with a duty cycle ranging from 50 to 90 percent. The design includes LED status indicators for each channel, providing real-time feedback on wiring and operation. Additionally, built-in protections against over-temperature, short circuits, and overloads ensure reliable performance and safety during operation.\u003c\/p\u003e\r\n\u003cp\u003eInstallation is straightforward with the included hardware and adjustable mounting tabs, allowing for flexible positioning in various setups. The MSD Ignition Solid-State High Current Relay Block is engineered for efficiency and reliability, making it an essential component for any electrical project.\u003c\/p\u003e\r\n\u003ch3\u003eFeatures\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003e4 Independent Channels, 35 Ampere Each Continuous Or 100 Ampere For 8 Seconds\u003c\/li\u003e\r\n    \u003cli\u003eCombined Total Continuous Current Rating Of 140 Ampere\u003c\/li\u003e\r\n    \u003cli\u003eChannels Can Be Run In Parallel For Devices Requiring More Than 35 Ampere Single-Channel Rating\u003c\/li\u003e\r\n    \u003cli\u003eOver-Temp, Short Circuit And Overload Protection\u003c\/li\u003e\r\n    \u003cli\u003eDiagnostic LED's And Status Indicators\u003c\/li\u003e\r\n    \u003cli\u003eSingle Wire Activation By Switching Power Or Ground\u003c\/li\u003e\r\n    \u003cli\u003eA PWM Signal Can Be Used In The Solid-State Relay Module With A Maximum Frequency Of 150 Hertz And A Duty Cycle Range From 50 Percent To 90 Percent\u003c\/li\u003e\r\n    \u003cli\u003eClean, Easy Install With Minimum Wiring\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\r\n\u003cul\u003e\r\n    \u003cli\u003eManufacturer: MSD Ignition\u003c\/li\u003e\r\n    \u003cli\u003eManufacturer Part Number: 75643-HC\u003c\/li\u003e\r\n    \u003cli\u003eHolds: 4 Relay\u003c\/li\u003e\r\n    \u003cli\u003eAmpere Rating (A): 35 Amp\u003c\/li\u003e\r\n    \u003cli\u003eIncludes Relays: Yes\u003c\/li\u003e\r\n    \u003cli\u003eIncludes Wiring Harness: No\u003c\/li\u003e\r\n    \u003cli\u003eIncludes Circuit Breaker: Yes\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eTechnical Documents\u003c\/h3\u003e\n\u003cul\u003e\r\n    \u003cli\u003e\u003ca href=\"https:\/\/vehiclepartimages.com\/PMDT\/MSD\/InstallationInstructions\/frm35952_7564-hc_75643-hc_1021_color.pdf\" target=\"_blank\"\u003efrm35952_7564-hc_75643-hc_1021_color.pdf\u003c\/a\u003e\u003c\/li\u003e\r\n    \u003cli\u003e\u003ca href=\"https:\/\/vehiclepartimages.com\/PMDT\/MSD\/Warranty\/msd_brand_warranties.pdf\" target=\"_blank\"\u003emsd_brand_warranties.pdf\u003c\/a\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ch3\u003eProduct Videos\u003c\/h3\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/vehiclepartimages.com\/PMDT\/MSD\/Videos\/How%20to%20Incorporate%20Time-Delay%20Relays%20into%20MSDs%20Solid%20State%20Relay.mp4?autoplay=0\" loading=\"lazy\" style=\"max-width: 560px; width: 100%; aspect-ratio: 560\/360;\" frameborder=\"0\" allow=\"accelerometer; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003ciframe src=\"https:\/\/vehiclepartimages.com\/PMDT\/MSD\/Videos\/Lose%20the%20Fuses%20and%20Simplify%20Your%20Cars%20Wiring%20with%20MSDs%20New%20High%20Current%20Solid%20State%20Relays.mp4?autoplay=0\" loading=\"lazy\" style=\"max-width: 560px; width: 100%; aspect-ratio: 560\/360;\" frameborder=\"0\" allow=\"accelerometer; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share; fullscreen\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e\r\n","brand":"NTP-Stag","offers":[{"title":"Default Title","offer_id":47273966764271,"sku":"M4675643HC","price":306.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1583\/3619\/files\/75643-hc_01.jpg?v=1767377953","url":"https:\/\/www.sprinterpartsdepot.com\/products\/msd-ignition-solid-state-high-current-relay-block-75643-hc","provider":"Sprinter Parts Depot","version":"1.0","type":"link"}