CM-202S - Commodore On/Off Battery Disconnect Switch | Aztek Computers
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SKU: HJHZARRXOM |  Mfg. Part: CM-202S  | UPC: 817683023154  |  0 Reviews  |     Share

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

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Product Overview

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)

Expert Overview

The Commodore On/Off Battery Disconnect Switch is a single-circuit, two-position switch designed for managing electrical systems in marine, RV, and off-grid applications. It provides a reliable method for isolating a battery, enhancing safety and facilitating maintenance. With a continuous rating of 300A and a cranking rating of 900A for 30 seconds, this switch is suitable for high-power demands up to 48 VDC. Its tin-plated copper studs offer corrosion resistance and conductivity, while the IP66 rating and ISO 8846 Marine Ignition Protection ensure durability in harsh environments. The switch supports both surface and flush mounting, with snap-off side pieces on the isolating cover for flexible wiring access. The CM-202S is built to meet industry standards including ABYC C-7 and UL 1107, making it a practical component for professional and DIY electrical system installations requiring robust power management.

Product Details

  • Manufacturer:
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  • Commodore
  • CM-202S
  • B0DQ25JPKZ
  • 817683023154
  • New
  • 0.5 lbs
  • 4 X 3 X 3
  • Aug 03, 2026
  • Mar 15, 2026
  • CHINA
Product Identifiers: Brand: Commodore • Part #: CM-202S • UPC: 817683023154 • ASIN: B0DQ25JPKZ • Category: Disconnectors & Load Switches

Frequently Asked Questions

What are the primary current ratings for this switch?

This switch has a continuous rating of 300A, an intermittent rating of 500A for 5 minutes, and a cranking rating of 900A for 30 seconds. It is designed for systems up to 48 VDC.

What are the mounting options and wiring access features?

The switch can be surface-mounted or flush-mounted. Its isolating cover includes three snap-off side pieces, allowing for wiring access from any direction and protecting the rear terminals.

What safety and environmental standards does this switch meet?

It is IP66-rated for protection against water jets and debris, and certified to ISO 8846 Marine Ignition Protection standards. It also complies with ABYC C-7, UL 1107, and CSA C22.2 No.4.

What type of battery system is this switch compatible with?

This is a single-circuit, on-off switch designed for one battery input. It does not feature battery combine or alternator field disconnect capabilities.

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

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$23.89