Siemens Q315 - 15 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Siemens Q315 — a 15 A, 240 V, 3-pole plug-in molded case circuit breaker designed to safeguard your panelboards and load centers with precision. Built for dependable branch-circuit overcurrent and short-circuit protection, this unit blends fast, tool-free installation with robust protection for a wide range of applications.

• Fast plug-in connection for quick installation and effortless replacement, minimizing downtime during panel updates or maintenance.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both overloads and short circuits, helping prevent nuisance trips and ensuring reliable circuit safety.
• Three-pole, 240 V operation provides balanced protection across three phases, ideal for multi-phase panel setups and preventing phase imbalances in larger electrical systems.
• OEM-compatible design engineered to integrate with matching Siemens load centers and panelboards, ensuring seamless fit and electrical coordination.
• Versatile across environments suitable for residential, commercial, and light industrial applications where dependable branch-circuit protection is essential.

Technical details

• Manufacturer: Siemens
• Part Number: Q315
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 15 A
• Voltage Rating: 240 V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases and benefits

• Upgrade or replace a 3-pole 240 V protection device in panelboards where quick plug-in service reduces outage time during maintenance or modernization projects.
• Implement reliable multi-phase protection in commercial spaces or light industrial setups where consistent trip characteristics matter for system stability.
• Ensure coordinate protection with existing Siemens load centers, maintaining consistent breaker curves and predictable performance across the electrical system.
• Ideal for installers and facility managers who value straightforward replacements, minimal wiring complexity, and dependable protection in a compact molded-case package.

Why this breaker stands out

Unlike generic, non-brand-specific options, the Siemens Q315 is purpose-built to integrate with Siemens panelboards, delivering guaranteed compatibility, a proven trip performance, and streamlined field service. Its thermal-magnetic mechanism safeguards circuits against both sustained overloads and short circuits, while the plug-in design reduces installation errors and speeds routine maintenance. For facilities that demand reliability, rapid service, and precise protection coordination, the Q315 is a clear, practical choice.