Truck-Lite 50889 – Smart Power Management ABS Accessory Switch, Hardwired, Blunt Cut

Optimize power delivery and safeguard your trailer's anti-lock braking system with the Truck-Lite 50889 ABS Switch. This essential hardwired accessory switch manages shared power circuits by prioritizing electrical capacity exclusively to the ABS module when the vehicle is in motion. Featuring a heavy-duty, two-wire hardwired connection, it automatically turns off accessory leads during vehicle movement to prevent power fluctuations, ensuring regulatory compliance and maximum commercial trailer braking safety.

Maintaining an uninterrupted power supply to your trailer's braking network is critical for fleet compliance and road safety. The Truck-Lite 50889 ABS Accessory Switch provides an intelligent, automated solution designed to manage shared electrical circuits and safeguard critical anti-lock braking functions.

On commercial trailers, the primary auxiliary auxiliary line (commonly the shared "Blue" circuit) is frequently split between the ABS system and various electrical accessories. The Truck-Lite 50889 eliminates the risk of voltage drops across this circuit. When the vehicle is in motion, this smart power management relay automatically deactivates accessory leads, ensuring that the full electrical capacity of the line is dedicated strictly to the ABS.

Built specifically for heavy-duty fleet operations, this switch relies on a rugged "snap-action" internal mechanism to deliver precise, instantaneous circuit control. It arrives equipped with a robust, hardwired blunt-cut interface consisting of two heavy-duty 12-gauge wires measuring 24 inches in length. This provides plenty of clearance and maximum conductivity for a reliable, permanent installation directly into your trailer's primary wiring harness.