Manual Battery Disconnect Switches

Littelfuse offers more battery disconnect switches than any other manufacturer. Ranging from 100 A to 500 A, they are designed for the most demanding environments in all vehicle applications.

Road salt corrosion is becoming an increasingly common problem. In the event corrosion leads to a short circuit resulting in a fire, a battery switch can be activated to prevent further damage to the vehicle or injury to occupants. On an unattended vehicle, chaffed or damaged wires can short circuit, causing a thermal event that can destroy the equipment, vehicles around it, or the building where it is parked.

Mechanics can ensure a vehicle’s electrical system is shut down by operating a battery switch. With the addition of a built-in or accessory lockout/tagout, the mechanic can ensure the vehicle cannot be energized or started during service. Another benefit of lockout/tagout is that owners can secure a switch with a padlock, making it difficult for thieves, vandals, or unauthorized users to operate the equipment.

Parasitic loads (power consumed even when the equipment is shut off) can drain a battery on equipment stored for long periods of time. By disconnecting the battery, the electrical system will not have any parasitic loads that can drain the battery and cause premature failure. Using a battery switch can help prevent costly battery replacements and ensure that the battery is fully charged for the next job.