Siemens CQD115 - 15 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Siemens CQD115 is a 15A, 277V, 1-pole bolt-on molded case circuit breaker designed to shield branch circuits from overloads and short circuits. Its robust bolt-on mounting creates a secure, vibration-resistant bus connection, making it ideal for panelboards and load centers in busy electrical environments.

• Secure bolt-on mounting: ensures a rigid, vibration-resistant bus connection for consistent electrical contact over time.
• Thermal-magnetic trip unit: provides stable thermal protection with fast magnetic response to short circuits, delivering repeatable protection across varying loads.
• OEM-compatible: built to work with matching Siemens OEM load centers and panelboards, helping maintain proper electrical coordination and code-compliant installations.
• Versatile applications: suitable for residential, commercial, and light industrial circuits where reliable overcurrent and short-circuit protection is needed.

Specifications at a glance

• Manufacturer: Siemens
• Part number: CQD115
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 15A
• Voltage rating: 277V
• Number of poles: 1
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Designed for installers and facilities managers who demand reliability without complexity, the CQD115 from AmpState is a straightforward, compatible choice for safeguarding critical circuits. It reduces nuisance trips while offering precise protection aligned with Siemens’ engineering standards, ensuring predictable behavior during fault conditions. By choosing a bolt-on, molded-case breaker within an OEM-compatible family, you simplify stocking, support, and future panel upgrades.