On/Off Battery Disconnect Switch

The Commodore On/Off Battery Disconnect Switch provides a reliable, durable, and safe solution for managing your marine or RV electrical systems. With a 300A continuous rating and a 900A cranking rating, this battery switch is designed to handle high-power applications, ensuring stable operation for your boat, RV, or off-grid systems. Its tin-plated copper studs offer superior conductivity and corrosion resistance, while the IP66-rated isolating cover provides robust protection against water and debris.

This versatile switch can be surface-mounted or flush-mounted, with snap-off side pieces allowing wiring access from any direction. Designed to meet stringent marine safety standards, including ISO 8846 Marine Ignition Protection, this switch is a must-have for any professional or DIY marine electrical system. Built for durability and reliability, the CM-202S ensures your system stays safe and operational in even the harshest conditions.

Features:

High-Performance Ratings: Handles 300A continuous, 500A intermittent, and 900A cranking current, ensuring dependable performance for high-power marine or RV systems.
Durable Tin-Plated Copper Studs: Features corrosion-resistant copper studs for maximum conductivity and long-lasting performance in harsh environments.
Versatile Mounting Options: These can be surface-mounted or flush-mounted with snap-off side plates, offering flexible installation and clean cable management.
Water-Resistant and Ignition Protected: Certified to ISO 8846 Marine standards, IP66-rated for protection against water jets, and safe for use in engine compartments.
Easy Wire Access: The isolating cover includes three snap-off side pieces, allowing wiring from any direction while protecting rear terminals for enhanced safety.
Meets Industry Standards: Complies with ABYC C-7, UL 1107, CSA C22.2 No.4, and other stringent safety regulations, ensuring compatibility and reliability.
Compact and Lightweight Design: Weighing only 0.83 lbs (0.38 kg), the compact design saves space without compromising durability or performance.
Rugged Marine-Grade Construction: Built to withstand the harshest marine and off-grid environments, ensuring long-lasting protection and reliable operation.

Specifications:

Maximum Voltage: 48 VDC
Switch Type: Single Circuit On-Off
Battery Inputs: 1
Color: Grey
Cable Clearance for 4/0 AWG Cables: 1.12 in (28.45 mm)
Cable Size to Meet Ratings: 4/0 AWG (120mm2)
Switch Positions: 2
Battery Combine: No
Alternator Field Disconnect: No
Cranking Rating 30 seconds: 900A
Continuous Rating: 300A
Intermittent Rating: 500A (5 min)
Mounting Holes: Accept #10 Screw
Stud Material: Tinned Copper
Stud Torque: 120 in-lb (13.56 Nm)
Terminal Stud Size: 3/8" - 16 (M10)
Weight: 0.65 lbs (0.29 kg)

Specifications:

Continuous Amperage: 300
Positions: 2
Box Dimensions: 3"H x 3"W x 4"L WT: 0.5 lbs
UPC: 817683023154

Brochure (pdf)

Commodore On/Off Battery Disconnect Switch [CM-202S]