{"product_id":"qbp433436","title":"Blue Sea Systems ML-RBS Remote Battery Switch, 500A, Manual Control, Bi-Stable","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Blue Sea Systems ML-RBS is a magnetic latching remote battery switch for high-amperage DC battery circuits, with manual control at the switch and remote operation from a helm, electrical panel, or other protected control location. Across the range, it carries a 500A continuous rating, a 700A intermittent rating for 5 minutes, and uses a bi-stable coil that draws no operating current while the switch is staying ON or OFF.\u003c\/p\u003e\u003cp\u003eThis switch is built for battery isolation and load switching on larger marine electrical systems where long battery cable runs are better kept short. It can switch high current under load, includes a manual override knob with a LOCKED OFF service position, and uses 3\/8\"-16 tin-plated copper terminal studs with 7\/8\" stud length for large cable terminals.\u003c\/p\u003e\u003cp\u003eThe ML-RBS suits installations on cruising boats, fishing boats, workboats, and other vessels that need battery switching from a more convenient location without giving up direct manual control at the battery switch. Voltage and control connection options vary by configuration, so the selected variant should match the vessel control circuit and wiring method.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003e500A continuous rating for main battery switching on high-current DC systems.\u003c\/li\u003e\n\u003cli\u003eBi-stable magnetic latching coil draws 0 mA while holding its ON or OFF state, which helps reduce unnecessary battery drain.\u003c\/li\u003e\n\u003cli\u003eManual override knob allows local operation with or without control power and includes a LOCKED OFF position for service work.\u003c\/li\u003e\n\u003cli\u003eRemote control capability supports battery switching from the helm, electrical panel, or another convenient onboard location.\u003c\/li\u003e\n\u003cli\u003e3\/8\"-16 tin-plated copper studs with 7\/8\" length accept large cable lugs and support multiple cable terminals where the installation allows.\u003c\/li\u003e\n\u003cli\u003eSilver alloy contacts support switching live loads, with a live current switching rating of 300A at 12V DC.\u003c\/li\u003e\n\u003cli\u003eLabel recesses help identify the connected battery bank or circuit in a crowded DC distribution area.\u003c\/li\u003e\n\u003cli\u003eDesigned to meet ratings with 2x 4\/0 cable and #10 mounting hardware.\u003c\/li\u003e\n\u003cli\u003eOperating temperature range of -10°C to 60°C supports protected engine room and electrical compartment installations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eVariants\u003c\/h6\u003e\u003cp\u003eThe ML-RBS range is offered in four configurations. The options change the nominal control voltage and the control circuit connection style, while the core switch function remains focused on remote battery isolation with manual override.\u003c\/p\u003e\u003cp\u003eThe 12V versions use a 9-16V DC control circuit, while the 24V versions use an 18-32V DC control circuit. Tinned wire versions suit conventional hard-wired installations, while Deutsch DTM \/ Amphenol ATM versions suit systems that use sealed connector interfaces for the control circuit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e7702: Nominal voltage 24V DC with tinned wire control circuit connection. This version fits 24V control systems where direct wire termination is preferred for the remote control circuit.\u003c\/li\u003e\n\u003cli\u003e7700: Nominal voltage 12V DC with tinned wire control circuit connection. This version fits 12V control systems using a traditional hard-wired control circuit.\u003c\/li\u003e\n\u003cli\u003e7700100: Nominal voltage 12V DC with Deutsch DTM \/ Amphenol ATM control circuit connection. This version fits 12V systems where a sealed connector style is needed for the control wiring.\u003c\/li\u003e\n\u003cli\u003e7702100: Nominal voltage 24V DC with Deutsch DTM \/ Amphenol ATM control circuit connection. This version fits 24V systems that use a sealed connector interface for the control circuit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eInstallation and setup\u003c\/h6\u003e\u003cp\u003eMount the switch close to the battery bank or main DC distribution point so the highest-current cable runs stay as short and direct as practical. The remote control wiring can then be routed to a helm station, battery management panel, or protected switch location, depending on the vessel layout.\u003c\/p\u003e\u003cp\u003eUse cable, terminals, torque, circuit protection, and routing practices that match the vessel’s DC system and current requirements. The terminal studs are sized for large conductors, and the listed terminal stud torque is 140 in-lb, so the installation should be handled with the same care as other primary battery connections.\u003c\/p\u003e\u003ch6\u003eElectrical and system integration\u003c\/h6\u003e\u003cp\u003eThe switch is intended for DC battery control where a remote switch position is more practical than walking to the battery compartment each time the bank needs to be connected or isolated. The LED output can be used for remote state indication when an optional LED is installed, giving the operator a clear view of switch status from the control position.\u003c\/p\u003e\u003cp\u003eBecause the coil is magnetic latching, it only needs power while changing state. That makes it useful on boats where standby draw matters, especially on vessels that sit at anchor, at a mooring, or in storage between trips.\u003c\/p\u003e\u003ch6\u003eWhat’s included\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eML-RBS remote battery switch\u003c\/li\u003e\n\u003cli\u003e2145 SPDT Remote Control Contura Switch, (ON)-OFF-(ON)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Blue Sea Systems","offers":[{"title":"24V DC \/ Tinned Wire","offer_id":52581883871413,"sku":"QBP433436-V3","price":353.99,"currency_code":"USD","in_stock":true},{"title":"12V DC \/ Tinned Wire","offer_id":52581883904181,"sku":"QBP433436-V9","price":353.99,"currency_code":"USD","in_stock":true},{"title":"12V DC \/ Deutsch DTM \/ Amphenol ATM","offer_id":52581883936949,"sku":"QBP444901-V2","price":297.99,"currency_code":"USD","in_stock":true},{"title":"24V DC \/ Deutsch DTM \/ Amphenol ATM","offer_id":52581883969717,"sku":"QBP444901-V9","price":297.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1333641_qbp433436.webp?v=1780201217","url":"https:\/\/www.qualityboatparts.com\/products\/qbp433436","provider":"Quality Boat Parts","version":"1.0","type":"link"}