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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)
The Commodore CM-202S On/Off Battery Disconnect Switch provides dependable control for marine, RV, and off-grid electrical systems. Designed for single-circuit battery isolation, it supports up to 300A continuously, 500A intermittently, and 900A for cranking applications. This makes it suitable for managing high-power battery circuits while helping simplify system shutdown and electrical maintenance.
Built for demanding environments, the switch features tinned copper studs for conductivity and corrosion resistance, along with an IP66-rated isolating cover that helps protect the rear terminals from water jets and debris. ISO 8846 Marine Ignition Protection certification supports use in engine compartments, while compliance with ABYC C-7, UL 1107, and CSA C22.2 No. 4 provides clearly defined industry-standard performance requirements.
The Commodore CM-202S supports both surface and flush mounting. Three snap-off side pieces provide wiring access from different directions, helping accommodate installation layouts and cable routing needs. The switch accepts 4/0 AWG cable to meet its rated performance and uses 3/8-16 terminal studs. Its gray housing and compact design make it a practical choice for professional installations, boat owners, RV users, and DIY electrical projects.
Key Features:
300A continuous, 500A intermittent, and 900A cranking ratings support high-power battery applications.
Tinned copper studs provide conductive, corrosion-resistant electrical connections.
IP66-rated isolating cover helps protect rear terminals from water jets and debris.
ISO 8846 Marine Ignition Protection supports installation in engine compartments.
Surface-mount or flush-mount installation with three snap-off side pieces for flexible wire access.
Single-circuit on/off operation provides straightforward battery isolation for marine, RV, and off-grid systems.
Product Details:
Brand: Commodore
Part Number: CM-202S
Switch type: Single-circuit on/off
Maximum voltage: 48 VDC
Battery inputs: 1
Switch positions: 2
Color: Gray
Cranking rating: 900A for 30 seconds
Continuous rating: 300A
Intermittent rating: 500A for 5 minutes
Recommended cable size to meet ratings: 4/0 AWG
Stud material: Tinned copper
Terminal stud size: 3/8-16
Mounting holes: Accept #10 screws
Standards: ISO 8846 Marine Ignition Protection, ABYC C-7, UL 1107, and CSA C22.2 No. 4
Choose the Commodore CM-202S for reliable, flexible battery disconnect control in marine, RV, and off-grid electrical systems.
SEO Meta Description: Commodore CM-202S battery disconnect switch delivers 300A continuous capacity, flexible mounting, IP66 protection, and marine ignition protection.
It worked as is described and it got my uncle‘s fridge back up and running perfectly
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No option for zero stars. I ordered a roll of 6 awg duplex wire and they drop shipped me a cheap, completely unrelated item. Nobody answers emails or the phone.
