{"product_id":"qbp513795","title":"Hella Marine SPST Mini ISO Relay, 12V, 50\/70A, Resistor Coil Suppression, Dust Cover","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Hella Marine 007793031 is a 12 V, 4-pin Mini ISO power relay with a normally open (SPST\/Form A) contact and built-in resistor coil suppression. It is rated at 50 A and carries an IP54 protection rating, making it a practical choice for switching higher-current DC loads from a low-current helm switch, keypad, or control module.\u003c\/p\u003e\u003cp\u003eOn a boat, this type of relay is commonly used to keep current out of the dash and shorten the high-amp wire run by placing the relay closer to the load or the distribution point. The resistor coil suppression helps tame switching spikes, which is useful when the relay is triggered by electronics or long control-wire runs.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003e12 V coil for 12 V DC marine electrical systems\u003c\/li\u003e\n\u003cli\u003eSPST\/Form A normally open contact for straightforward on\/off control\u003c\/li\u003e\n\u003cli\u003e50 A current rating for many accessory and utility circuits\u003c\/li\u003e\n\u003cli\u003eMini ISO footprint with 4 blade terminals for common relay sockets and fuse\/relay panels\u003c\/li\u003e\n\u003cli\u003eResistor coil suppression to reduce voltage spikes when the coil is switched off\u003c\/li\u003e\n\u003cli\u003eIP54 protection rating with a dust cover, suited to protected mounting locations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eInstallation and wiring\u003c\/h6\u003e\u003cp\u003ePlan the install so the relay sits in a relay box, electrical locker, or other protected area, not in a bilge space or anywhere it can be soaked. Use a proper relay socket or holder so the terminals are supported and the relay cannot work loose from vibration.\u003c\/p\u003e\u003cp\u003eSize the fuse or breaker and wire gauge for the load you are switching, not for the control circuit. Keep the high-current feed protected close to the power source, and secure wiring runs so they do not chafe. Before crimping, confirm the terminal markings on the relay body and match them to your wiring diagram.\u003c\/p\u003e\u003ch6\u003eCompatibility and fit\u003c\/h6\u003e\u003cp\u003eThis relay uses the Mini ISO 4-pin blade layout found in many relay\/fuse panels and marine distribution builds that borrow standard automotive-style relays. It is intended for 12 V control voltage, so it is not a drop-in choice for a 24 V coil circuit.\u003c\/p\u003e\u003ch6\u003eOn-board use cases\u003c\/h6\u003e\u003cp\u003eThis relay is a good match for switching loads such as deck and spreader lights, horns, small pumps, fans, or an accessory bus feed, where you want the helm control to carry only a small trigger current. It also fits well in refits where a standard 4-pin Mini ISO relay socket is already in place and you need resistor-suppressed coil switching.\u003c\/p\u003e\u003ch6\u003eMaintenance and care\u003c\/h6\u003e\u003cp\u003eIn saltwater environments, protect terminals from corrosion with a sealed relay box where possible, clean crimps, and heat-shrink insulation. Periodically check for warmth at the socket and for discoloration at the terminals, both of which can point to a loose connection or an undersized wire run.\u003c\/p\u003e","brand":"Hella Marine","offers":[{"title":"Default Title","offer_id":52269009502389,"sku":"QBP513795","price":14.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1298669_qbp513795.jpg?v=1771541445","url":"https:\/\/www.qualityboatparts.com\/products\/qbp513795","provider":"Quality Boat Parts","version":"1.0","type":"link"}