CQD260 - 60Amp Circuit Breaker

CQD260 - 60Amp Circuit Breaker

The CQD250 Siemens CQD miniature circuit breaker is a 50 Amp, 2-pole breaker used in everyday commercial and industrial electrical panels where 480/277V circuits need dependable, consistent protection. You’ll typically find it in lighting panels, control cabinets, and power distribution boards, especially in buildings that rely on DIN rail systems to keep wiring organized, accessible, and easier to service over time.

This unit is rated for 480/277VAC systems with a 14kA interrupting capacity, making it suitable for standard branch circuit protection in commercial environments. The 2-pole configuration disconnects both conductors at the same time, which is commonly required for 277/480V lighting and distribution circuits.

At its core, the CQD250 is a practical breaker used in systems where fit, consistency, and straightforward replacement matter just as much as electrical ratings. It’s designed to help keep circuits protected while supporting a clean, familiar panel layout that’s easy to maintain.

Key Features and Benefits

• 50 Amp, 2-pole breaker for 480/277V applications
• Siemens CQD DIN rail-compatible design
• 14kA interrupting rating for branch circuit protection
• Simple DIN rail installation for fast setup
• Common in lighting and distribution panels
• Used in commercial and industrial environments
• Fits existing Siemens CQD panel layouts
• 2-pole disconnect for 277/480V systems
• Ideal for maintenance, retrofit, and replacements
• Consistent fit within CQD series installations

Technical Specifications

• Catalog Number: CQD250
• Product Type: Miniature Circuit Breaker
• Series: CQD
• Amperage Rating: 50A
• Poles: 2
• Voltage Rating: 480/277VAC
• Interrupting Rating: 14kA
• Mounting Type: DIN Rail
• Application: Branch circuit protection
• Net Weight: approx. 1.499 lb

Material Compliance and Certifications

The CQD250 Siemens breaker is manufactured in accordance with applicable UL and IEC standards for low-voltage circuit protection equipment. It is intended for use in compatible DIN rail systems and should be installed by qualified electrical personnel in accordance with all applicable electrical codes and manufacturer guidelines.

Where It Works Best

• Commercial lighting panels
• Industrial control cabinets
• 277/480V branch circuits
• DIN rail distribution systems
• Electrical panel maintenance and replacements
• Building automation systems
• Tight electrical enclosures
• Siemens CQD-compatible installations