Cole Hersee's new 79520 Master Battery Disconnect Switch is ideal for all vehicle electrical systems, including heavy truck applications, and cuts off all battery power from the vehicle electrical system.
Cole Hersee Showcases Master Battery Disconnect Switch
Cole Hersee's new 79520 Master Battery Disconnect Switch is ideal for all vehicle electrical systems, including heavy truck applications, and cuts off all battery power from the vehicle electrical system
by Staff
February 26, 2009
1 min to read
The switch also provides an emergency power cutoff, protecting vehicles from tampering, theft and battery drain. It provides service personnel with an extra level of safety, protecting them from hazards, and can be locked-out or tagged-out to satisfy OSHA requirements for energy isolation.
The switch's composite engineered polymer housing will not rust or corrode when mounted in exposed locations. The switch has been tested per SAE 1455 for road salt, calcium chloride and magnesium chloride, and is waterproof to IP67. It has a high amperage capacity of 300A at 12V DC, can be used in high or low side applications, and first the standard master disconnect switch mounting pattern. It has a large red knob allowing for easy operation and a 90° switch travel makes it easy to identify the switch position.
More info: www.colehersee.com
Topics:Products
Subscribe to Our Newsletter
More Products
Deflecktor: Hubbub Aerodynamic Wheel Cover Cost-Effective Even for Trailers
Aerodynamic wheel covers can deliver small but meaningful fuel-economy gains for fleets, and Deflecktor says its latest design aims to make the technology easier and more affordable to deploy.
Read More →
Fontaine Expands Flatbed Lineup with New Fleet-Focused Models, Eyes 2027 Launch
Fontaine is broadening its flatbed lineup with new models aimed at fleets, including a lightweight aluminum trailer expected in 2027 that emphasizes durability, repairability, and lower cost.
Read More →
Fontaine's Fleet-Focused Force Flatbed Prototype [Watch]
A new prototype from Fontaine Trailer focuses on what fleets say they need most: easier repairs, lower maintenance costs, and practical, service-friendly design.
Read More →
HDT Honors the Best New Products of 2025 at TMC [Photos]
Heavy Duty Trucking's Top 20 Products awards recognize the best new products and technologies. Check out the award presentations at the 2026 Technology & Maintenance Council annual meeting.
Read More →
Sponsored•March 31, 2026
Detroit Engines: Trusted Performance, Built for What's Next
The Detroit® Gen 6 engine platform proves that real progress doesn’t require a complete redesign. Built on 20 years of trusted technology, these engines are designed for efficiency, stronger performance, and greater reliability than before. And they do it all while complying with 2027 EPA standards on every mile.
Read More →
HDT Top 20 Products 2026: The New Tools, Technologies, and Ideas Shaping Trucking
From pricing intelligence and compliance tools to charging infrastructure, diagnostics, tires, and AI, HDT’s 2026 Top 20 Products recognize the new tools, technologies, and ideas heavy-duty trucking fleets are using to run their businesses.
Read More →
Geotab Launches AI-Powered GO Focus Pro Dash Cam With 360-Degree Visibility
Geotab launches GO Focus Pro, an AI-powered 360-degree dash cam designed to reduce collisions, prevent fraud, and protect fleets from nuclear verdict risk.
Read More →
Sponsored•February 1, 2026
Unplanned Downtime Is Costing Your Fleet More Than You Think
Misdiagnosis. Dealer backlogs. Repeat repairs. For heavy-duty fleets, these aren't just frustrations, they're profit killers. See how fleet managers are using modern diagnostic tools to catch problems faster, fix them right the first time, and take back control of their TCO.
Read More →
Sponsored•February 1, 2026
6 Dashcam Tactics to Improve Safety & ROI
6 intelligent dashcam tactics to improve safety and boost ROI
Read More →
Sponsored•January 19, 2026
Basic Tracking vs Next Generation Fleet Technology
Fleet software is getting more sophisticated and effective than ever, tying big data models together to transform maintenance, safety, and the value of your existing tech stack. Fleet technology upgrades are undoubtedly an investment, but updated technology can offer a much higher return. Read how upgrading your fleet technology can increase the return on your investment.
Read More →