Siemens CQD6315 15A 3-Pole 347 V Circuit Breaker

Meet the Siemens CQD6315 15A 3-Pole 347 V Circuit Breaker — a compact, dependable safeguard designed for three-phase power in commercial and light-industrial environments. With a 15-amp current rating and a three-pole configuration, it protects all phases of your distribution network against overloads and faults, helping keep equipment running smoothly and safely. This part is identified by the exact model CQD6315, making replacements and service straightforward within compatible Siemens panels.

Key specifications

• Part Number: CQD6315
• Current rating: 15 A
• Poles: 3
• Voltage rating: 347 V
• Type: 3-Pole circuit breaker for three-phase protection

Why this matters

In three-phase systems, a single 3-pole breaker protects all phases simultaneously, reducing the risk of phase imbalances that can stress motors and equipment. The 347 V rating makes this breaker well-suited for commercial distribution networks where higher voltage levels are common. By choosing the CQD6315, you align with Siemens’ proven engineering, helping ensure dependable tripping behavior and consistent protection across the entire three-phase circuit.

Ideal use cases

• Protecting three-phase feeders in commercial buildings and light industrial facilities operating at 347 V.
• Replacing worn or failed breakers in Siemens panels designed to accept CQD-series devices.
• Safeguarding motors, HVAC equipment, and large lighting runs in 3-phase distribution setups.

Practical installation notes

Before installation or replacement, confirm that your panel and circuit align with a 347 V three-phase design and a 15 A protection level. Always power down the system and follow local electrical codes, consulting a licensed electrician if needed. The CQD6315 is the precise identifier you’ll rely on for quick, accurate service in compatible Siemens environments.