Siemens QRH23B250 Circuit Breaker – QR Series – 250A – 3 Pole – 240VAC – Bolt-On – Thermal Magnetic – High Interrupting Capacity

The Siemens QRH23B250 is a QR Series molded case circuit breaker designed for heavy-duty three-phase electrical distribution and feeder protection. Rated at 250A and 240VAC, this 3-pole breaker provides reliable thermal-magnetic protection with Long-Time and Instantaneous (LI) trip functions, ensuring dependable response to overload and short-circuit faults.

Built with a bolt-on mounting configuration, the QRH23B250 is engineered for secure installation in compatible Siemens panelboards and switchgear systems. Its high interrupting capacity rating enhances system safety in demanding environments where fault current levels may be elevated.

Specifications

• Brand: Siemens
• Part Number: QRH23B250
• Series: QR Series
• Type: QRH2
• Category: Molded Case Circuit Breaker
• Mounting Type: Bolt-On
• Configuration: 3 Pole
• Phase: 3 Phase
• Protection Type: Thermal Magnetic
• Trip Functions: LI – Long-Time and Instantaneous
• Standards: CSA Approved

Electrical Ratings

• Current Rating: 250A
• Voltage Rating: 240VAC
• Interrupting Capacity: 25kA @ 240VAC (as specified in product description)
• Frequency: 50/60 Hz

Construction

• Bolt-on mounting design
• Thermal-magnetic trip unit
• Molded case housing
• Common-trip mechanism
• Factory-calibrated protection system

Functions

• Overload protection
• Short-circuit protection
• Long-time delay protection
• Instantaneous fault protection
• Simultaneous three-pole tripping

Dimensions & Weight

• Weight: 4.519 lb

Applications

• Three-phase power distribution systems
• Commercial and industrial electrical panels
• Feeder and branch circuit protection
• HVAC and motor control applications
• High fault current electrical environments

Certifications & Approvals

• CSA Approved

Returns are easy

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

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