The Siemens CQD360 is a three-pole molded-case circuit breaker rated at 60 A for 480Y/277 V AC systems, designed to protect 3‑phase distribution circuits in commercial panels. It employs a thermal-magnetic trip unit with a 14 kA interrupting rating, and it supports DIN rail mounting with a load-lug terminal option within the CQD frame. This CQD360 model is intended for 3‑pole configurations in large commercial electrical installations requiring 480Y/277 V operation, offering reliable short‑circuit protection in a compact, DIN-rail-ready package.
