{"product_id":"qbp486288","title":"Hella Marine SPDT Mini Relay, 12V, 20\/40A, 5-Pin, Dust Cover","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Hella Marine 933332051 is a 12V Mini ISO changeover relay (SPDT\/Form C) rated for 40A continuous on the normally open circuit and 20A on the normally closed circuit at 85°C.\u003c\/p\u003e\u003cp\u003eIt is a straightforward way to switch higher-current accessories without running full load current through a small helm switch. On board, that often means deck and spreader lights, horns, washdown pumps, or other loads where keeping voltage drop down matters.\u003c\/p\u003e\u003cp\u003eThe relay uses five 6.3 mm blade terminals in the standard 30\/87\/87a (load) and 85\/86 (coil) layout, and it includes a dust cover with an IP54 rating for basic splash and dust protection.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003e12V nominal coil with max coil voltage of 20V\u003c\/li\u003e\n\u003cli\u003eSPDT\/Form C contacts with 40A continuous rating on N\/O and 20A on N\/C (at 85°C)\u003c\/li\u003e\n\u003cli\u003eMax inrush load rated to 150A for short startup surges\u003c\/li\u003e\n\u003cli\u003eOperate time = 10 ms and release time = 5 ms\u003c\/li\u003e\n\u003cli\u003eAmbient temperature range -40°C to +85°C\u003c\/li\u003e\n\u003cli\u003eMini ISO footprint with 6.3 mm blade terminals for common 5-pin relay sockets\u003c\/li\u003e\n\u003cli\u003eIP54 dust cover to help keep spray and debris off the terminals in sheltered mounting spots\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eInstallation and setup\u003c\/h6\u003e\u003cp\u003eMount the relay in a dry, protected area such as behind the dash, inside a console, or in a covered locker. Use a properly sized fuse or breaker on the feed to terminal 30, and keep the high-current run as short as practical between the power source, relay, and load.\u003c\/p\u003e\u003cp\u003eTerminal 87 is the normally open output, and 87a is the normally closed output. Terminals 85 and 86 are the coil connections that can be switched by a low-current control circuit.\u003c\/p\u003e\u003cp\u003eThis relay has no built-in coil suppression, so if the trigger circuit is connected to sensitive electronics, add the suppression method your system requires.\u003c\/p\u003e\u003ch6\u003eCompatibility and fit\u003c\/h6\u003e\u003cp\u003eThis is a 12V relay, so it matches 12V DC boats and accessories. It uses the standard 5-terminal Mini ISO\/SPDT layout with 6.3 mm blades, which keeps it compatible with many off-the-shelf relay bases and harness sockets. For longevity, avoid mounting locations that see regular washdowns or bilge water.\u003c\/p\u003e\u003ch6\u003eUse on board\u003c\/h6\u003e\u003cp\u003eIt suits boats where a small switch or control output needs to command a heavier load, like spreader lights on a mast, deck floods on a hardtop, or an accessory circuit that you want switched from a protected control point. It is a practical fit when you need a changeover relay with a 40A normally open rating on a 12V system.\u003c\/p\u003e","brand":"Hella Marine","offers":[{"title":"Default Title","offer_id":52269055705269,"sku":"QBP486288","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1298434_qbp486288.jpg?v=1771541652","url":"https:\/\/www.qualityboatparts.com\/products\/qbp486288","provider":"Quality Boat Parts","version":"1.0","type":"link"}