Cutler-Hammer QCL3090 U is a 90A, 240V three-phase circuit breaker designed to protect three-pole electrical circuits in distribution panels. This 3P unit carries the QCL3090 U designation and provides overcurrent protection for multi-phase systems in commercial and industrial electrical installations. With a 90-amp rating at 240 volts, it is appropriate for protecting 3-phase feeders and branch circuits in panel boards that require protection across all three phases.
