Cole Hersee Battery Disconnect Switches

Cole Hersee Battery Disconnect Switches: A Century of Heavy-Duty Expertise

When it comes to protecting a vehicle's electrical system from parasitic drain, fire risk, or unauthorized use, few names carry the authority that Cole Hersee has built over a century in the industry. Founded in 1924, Cole Hersee has been a pioneer in heavy-duty vehicle electrical products, and their battery disconnect switches represent that same uncompromising engineering philosophy applied to one of the most safety-critical components in any electrical system.

Built for the Toughest Applications

Cole Hersee battery disconnect switches are not consumer-grade accessories — they are engineered for the demands of commercial trucking, construction equipment, agriculture, military vehicles, and marine applications. The brand has long been a preferred supplier to OEM builders and fleet operators who require consistent, verifiable performance under extreme conditions. Whether you're isolating a 12V starter battery on a Class 8 truck or cutting power to an auxiliary battery bank on a workboat, Cole Hersee disconnect switches are rated to handle high-amperage loads and resist the vibration, moisture, and corrosion that destroy lesser components.

What Sets Cole Hersee Disconnect Switches Apart

• Heavy-duty ratings: Cole Hersee disconnect switches are designed for applications up to 36V DC, making them compatible with both standard 12V and higher-voltage commercial systems.
• Weather and corrosion resistance: Products feature moisture-resistant insulators and corrosion-resistant construction, essential for under-hood, marine, and outdoor equipment use.
• ISO 9001 certified manufacturing: Cole Hersee's ISO 9001 certification means every disconnect switch is produced under a rigorous quality management system, giving fleet managers and OEMs confidence in batch-to-batch consistency.
• Industry standard collaboration: Cole Hersee helped shape many of the core industry standards that govern heavy-duty electrical switching — meaning their disconnect switches aren't just compliant, they helped define compliance.
• OEM and aftermarket fit: The lineup spans standard and application-specific designs, including master disconnect configurations for single and dual battery setups, with accessories and wiring solutions to round out a complete installation.

Who Relies on Cole Hersee Disconnect Switches

Cole Hersee has earned its reputation among a remarkably diverse user base. Truck and trailer maintenance crews reach for Cole Hersee master disconnect switches as the default choice for preventing battery drain during storage or service. Marine technicians trust them for isolating battery banks on vessels where a short circuit can mean catastrophe. Agricultural equipment operators depend on them to comply with lockout/tagout safety requirements. And DIY restorers and custom builders choose Cole Hersee because the brand's century-long track record speaks for itself.

Backed by Littelfuse — a global leader in circuit protection — Cole Hersee continues to invest in the quality and innovation that professionals demand. Explore the full Cole Hersee brand catalog to see their complete range of heavy-duty electrical products, or browse all battery disconnect switches to compare options across top manufacturers.