8498-53515
150 Amp Circuit Breaker
Mack

This 150 Amp circuit protection device is designed to safeguard heavy-duty electrical circuits by interrupting excessive current flow and preventing damage to wiring and components. Built for the rugged environment of commercial trucks, it provides a reliable, quick-disconnect interface that trades high current capability for compact size and ease of replacement. The device responds to overcurrent conditions with a precise thermal-magnetic trip characteristic, helping minimize nuisance trips while still delivering robust protection against shorts and overloads. In practice, it supports critical electrical branches such as charging, starting, or auxiliary circuits where uninterrupted performance matters for reliability on the road. The rugged construction resists vibration, temperature extremes, and exposure to road grime, ensuring consistent operation in harsh job-site or highway conditions. Correct installation is essential: ensure proper torque on mounting hardware and secure lead connections to maintain proper fault-clearing performance. For fleet operators, replacing a failed breaker promptly helps avoid cascading electrical issues and costly downtime. Source One Parts Center references this part as a standard-grade protection option, emphasizing its role in preventing electrical faults with minimal maintenance needs.