Automotive Circuit Protection

Battery Selector Switch – 1-2-Both-Off Rotary Switch

The Battery Selector Switch is designed for dual battery system control in DC electrical applications. With OFF, 1, 2, and 1+2 selector positions, it allows convenient switching between battery banks and is suitable for marine, RV, and other battery-powered systems.

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Built for Reliable Electrical Protection

Product Overview

Overview

The Battery Selector Switch is designed for dual battery management and battery bank selection in DC electrical systems. With OFF, 1, 2, and 1+2 selector positions, it allows users to isolate, select, or combine battery banks according to system requirements.

This rotary selector switch is suitable for marine, RV, automotive, and other battery-powered applications where reliable battery switching and power distribution control are required. The compact housing and panel-mount structure make it practical for a wide range of installations.

Dual battery selector switch with rotary handle and ignition protected design

Key Features

  • OFF / 1 / 2 / 1+2 selector positions
  • Designed for dual battery system management
  • Rotary selector operation for convenient switching
  • Ignition protected design
  • Suitable for 32V DC systems
  • Compact housing with four mounting points
  • Suitable for marine, RV, and DC electrical applications

Specifications

Item Description
Model CZY-BS09
Product Type Battery Selector Switch
Switch Positions OFF / 1 / 2 / 1+2
Operation Type Rotary Selector
Rated Voltage 32V DC
Continuous Rating 350A
Intermittent Rating 600A (5 min)
Cranking Rating 1200A (30 sec)
Protection Ignition Protected
Certification Marking CE

Applications

  • Marine dual battery systems
  • RV battery management systems
  • Automotive auxiliary battery systems
  • Boat electrical systems
  • DC power distribution systems

Product Structure / Design

This battery selector switch features a rotary handle and a multi-position selector design. The OFF, 1, 2, and 1+2 positions allow users to disconnect the system, select one battery bank, or combine two battery banks for power supply management.

Selection Notes

  • Choose a battery selector switch when the system uses two battery banks.
  • Confirm the required current rating according to the application.
  • Check the installation space and mounting method before selection.
  • Use the correct selector position according to battery system requirements.

OEM & Custom Solutions

Cozy Electronics provides OEM and customized battery switch solutions for marine, automotive, and other DC electrical applications. Custom options may include housing color, branding, packaging, and related power management components.

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