Siemens Q21500S01 Circuit Breaker – Q Series – 15A – 2 Pole – 240VAC – Plug-In – Thermal Magnetic – Shunt Trip

The Siemens Q21500S01 is a Q Series molded case circuit breaker designed for residential and light commercial load center applications requiring reliable two-pole circuit protection. Rated at 15A and 240VAC, this breaker is suitable for protecting 240V branch circuits such as HVAC equipment, small motors, and other dedicated loads.

It features a thermal-magnetic trip mechanism with Long-Time and Instantaneous (LI) protection, ensuring dependable response to overload and short-circuit faults. This model also includes a factory-installed 120V shunt trip, enabling remote tripping for enhanced safety and control system integration.

Specifications

• Brand: Siemens
• Part Number: Q21500S01
• Series: Q Series
• Category: Residential / Light Commercial Circuit Breaker
• Mounting Type: Plug-In (Load Center Compatible)
• Configuration: 2 Pole
• Phase: 1 Phase
• Protection Type: Thermal Magnetic
• Trip Functions: LI – Long-Time and Instantaneous
• Special Feature: 120V Shunt Trip
• Standard: UL 489

Electrical Ratings

• Current Rating: 15A
• Voltage Rating: 240VAC
• Interrupting Capacity: 10 kA @ 120/240VAC
• Application: 240V branch circuit protection

Construction

• Compact molded case design
• Plug-in mounting for Siemens Q Series load centers
• Thermal-magnetic trip unit
• Integrated shunt trip coil
• Durable insulated housing

Functions

• Overload protection
• Short-circuit protection
• Remote trip capability (shunt trip)
• Circuit isolation and switching

Applications

• HVAC systems (compressors, condensers)
• Residential load centers
• Small motors and pumps
• Dedicated 240V branch circuits

Returns are easy

You may return items within 30 days of delivery for a refund.

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