CQD380, Molded Case Circuit Breaker

CQD380 Molded Case Circuit Breaker – Siemens Electrical Protection The Siemens CQD380 Molded Case Circuit Breaker is designed for reliable circuit protection in commercial and industrial electrical systems. It is suitable for use in switchgear assemblies and electrical distribution panels requiring three-pole protection at 480Y/277V AC circuits. This breaker is intended for cable-in cable-out mounting and supports continuous current ratings at 40 degrees Celsius ambient temperature. As a product from a leading electrical distributor and switchgear supplier, it offers compliance with UL and CSA standards for industrial control and lighting solutions applications. Specifications Manufacturer: Siemens Manufacturer Part Number: CQD380 Number of Poles: 3 Continuous Current Rating: 80 Amperes @ 40°C (implied from catalog series; exact current rating not explicitly provided for CQD380, but 80A corresponds to CQD380 in Siemens catalog) Mounting Type: Cable In Rated Voltage: 480Y/277V AC Interrupting Rating: 65 kA at 480/277V AC (UL Listed) Product Weight: 1.75 lbs Features UL Listed for reverse feed applications DIN rail mount compatible for ease of installation Suitable for circuit protection up to 600/347V (CSA) and 480/277V (UL) circuits Supports cable-in and cable-out wiring configuration Compact dimensions with 3.00 inches width for 3-pole units, fitting standard 35mm DIN rails Compatible with 60/75°C rated copper and aluminum wire lugs (#14–#6 AWG Cu, #12–#6 AWG Al for 15-40A; #8–#1 AWG Cu, #6–#1/0 AWG Al for 45-100A) Downloads & Links Catalog Brochure