Siemens HQR22B125 Circuit Breaker – QR Series – 125A – 2 Pole – 240VAC – Thermal Magnetic – Bolt-On

The Siemens HQR22B125 is a QR Series molded case circuit breaker designed to provide reliable overcurrent and short-circuit protection for commercial, industrial, and power distribution applications. Rated at 125A and 240VAC, this 2-pole breaker is suitable for single-phase electrical systems requiring dependable circuit protection and high interrupting capacity.

Featuring a thermal magnetic trip unit with Long-Time and Instantaneous (LI) protection functions, the HQR22B125 delivers effective overload and short-circuit protection to help safeguard electrical equipment and distribution systems. Its very high interrupting capacity of 65kA at 240VAC allows it to safely clear high fault currents in demanding applications.

The breaker utilizes a bolt-on mounting design for secure installation and is supplied complete with a non-interchangeable trip unit and load-side lug terminals for reliable field connections.

Specifications

• Brand: Siemens
• Part Number: HQR22B125
• Series: QR Series
• Type: HQR2 Molded Case Circuit Breaker
• Category: Molded Case Circuit Breaker
• Mounting Type: Bolt-On
• Connection: Load Side Lug Terminals
• Trip Unit: Non-Interchangeable
• Protection Type: Thermal Magnetic

Electrical Ratings

• Current Rating: 125A
• Voltage Rating: 240VAC
• Number of Poles: 2 Pole
• Phase: 1 Phase
• Interrupting Capacity: 65kA @ 240VAC
• Trip Functions: LI – Long-Time and Instantaneous

Construction

• Compact molded case design
• Bolt-on mounting configuration
• Integrated thermal magnetic trip mechanism
• Non-interchangeable trip unit
• Load-side lug terminal connections
• Heavy-duty construction for demanding applications

Functions

• Overload protection
• Short-circuit protection
• Long-time delay protection
• Instantaneous fault protection
• Circuit isolation and switching

Dimensions

• Height: 4.2 in
• Width: 4.7 in
• Depth: 7.3 in
• Weight: 3.20 lbs

Standards

• CSA Approved

Applications

• Commercial power distribution systems
• Industrial electrical panels
• Switchboards and panelboards
• Equipment protection circuits
• High fault-current applications
• Single-phase distribution systems

Returns are easy

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

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