Description

Electronics – Electrical connections.
BLUE SEA SYSTEMS Mini Battery Switch Dual Circuit.
M-series mini dual circuit battery switch.
– red.
Gain simplified, robust control over your vessel´s electrical system with the BLUE SEA SYSTEMS m-Series Mini Dual Circuit Battery Switch. Expertly engineered for marine environments, this switch provides a straightforward ON/OFF solution for managing two separate battery banks simultaneously with a single, easy-to-use control. It is the ideal choice for boats and vehicles with a starting battery and a house or auxiliary battery, ensuring critical systems remain isolated and protected.
The primary benefit of the Dual Circuit design is its ability to completely isolate the engine starting circuit from the house circuit. This prevents the accidental draining of your starting battery by house loads, such as lights, stereos, or refrigerators, giving you peace of mind that you´ll always have the power to start your engine. Furthermore, it protects sensitive electronics from voltage sags and spikes that can occur during engine cranking, extending the life of your valuable equipment. Its compact, space-saving design makes it perfect for installations in tight, crowded helm stations or electrical compartments where mounting two separate switches would be impractical.
Built for uncompromising safety and longevity in harsh marine conditions, this switch is ignition protected, making it safe for installation aboard gasoline-powered boats. The robust construction and high-quality materials ensure reliable performance when you need it most.
Main Features:
* Simultaneously switches two isolated DC circuits with a single ON/OFF action.
* Ignition Protected (SAE J1171, ISO 8846) for safe use in gasoline engine compartments.
* Compact and lightweight design allows for installation in confined spaces.
* Tin-plated copper studs provide maximum electrical conductivity and superior corrosion resistance.
* Studs accept 3/8″ (M10) ring terminals for secure, high-amperage connections.
* Case design allows for surface, front panel, or rear panel mounting options.
* Removable side plates provide unobstructed access for heavy-gauge battery cables.
* Tactile indicator on the knob conveys the switch position by feel alone.
Switches:
This unit functions as a dual-pole, single-throw (DPST) switch, providing a simple ON and OFF position. In the ON position, both Circuit 1 and Circuit 2 are closed and energized. In the OFF position, both circuits are open, completely disconnecting your batteries from their respective loads for storage, maintenance, or emergency shutdown.
Technical Specifications:
* Switch Type: Dual Circuit
* Color: Red
* Switch Positions: 2 (ON / OFF)
* Battery Inputs: 2
* Cranking Rating (30 sec): 900A per circuit
* Intermittent Rating (5 min): 500A per circuit
* Continuous Rating: 300A per circuit
* Maximum Voltage: 32V DC
* Terminal Stud Size: 3/8″ – 16 (M10)
* Terminal Stud Torque: 140 in-lb (15.82 Nm)
* Cable Size to Meet Ratings: 4/0 AWG (120mm²)
* Cable Clearance for 4/0 AWG Cables: 1.12 in (28.45 mm)
* Mounting Holes: Accepts 10 screws
* Waterproof Rating: IP66 – Protected against powerful water jets from any direction.
* Certifications: Meets ABYC (American Boat and Yacht Council) requirements, UL 1107 Listed for electric power switches