CQD115 - 15Amp Circuit Breaker

CQD115 - 15Amp Circuit Breaker

The CQD115 Siemens CQD miniature circuit breaker is a 15 Amp, 1-pole breaker used in commercial and industrial electrical panels where compact, dependable protection is needed for 277V branch circuits. You’ll typically see this type of breaker in lighting panels, control cabinets, and distribution boards, where circuits are neatly organized and space inside the enclosure matters.

In real-world use, this breaker is often part of DIN rail mounted panel systems, where multiple breakers are installed side by side for clean circuit layout and easy service access. It’s commonly chosen for new panel builds, maintenance work, and system upgrades, especially when keeping circuit protection consistent across a facility is important. Because it installs on standard DIN rail, it fits smoothly into Siemens-compatible enclosures without extra hardware or adjustments.

In everyday terms, it’s a simple, space-saving breaker that does exactly what it needs to do—protect individual circuits in systems where organization, consistency, and easy replacement matter.

Key Features and Benefits

• 15 Amp, 1-pole miniature circuit breaker for 277V circuits
• Designed for Siemens CQD DIN rail systems
• 14kA interrupting capacity for branch circuit protection
• Compact design for efficient panel space use
• DIN rail mounted for fast installation and replacement
• Common in lighting and control panel applications
• Suitable for commercial and industrial environments
• Used in maintenance, retrofit, and new installations
• Supports organized multi-breaker panel layouts
• Built for standard branch circuit protection needs

Technical Specifications

• Catalog Number: CQD115
• Product Type: Miniature Circuit Breaker
• Series: CQD
• Amperage Rating: 15A
• Poles: 1
• Voltage Rating: 277VAC
• Interrupting Rating: 14kA
• Mounting Type: DIN Rail
• Application: Branch circuit protection
• Net Weight: approx. 1.698 lb

Material Compliance and Certifications

The CQD115 Siemens breaker is manufactured to meet applicable UL and IEC standards for low-voltage circuit protection devices. It is designed for installation in compatible DIN rail panel systems and should be installed by qualified electrical personnel following all applicable electrical codes and manufacturer guidelines.

Where It Works Best

• Commercial lighting panels
• Industrial control cabinets
• 277V branch circuit systems
• DIN rail distribution boards
• Electrical panel maintenance and upgrades
• Building automation systems
• Space-constrained enclosure layouts
• Siemens-compatible electrical installations