QRH23B250 - 250 Amp Circuit Breaker

QRH23B250 - 250 Amp Circuit Breaker

Safeguard your three-phase 240 V circuits with confidence using the Siemens QRH23B250. Designed for serious electrical protection, this 3-pole molded case breaker delivers 250 A continuous current handling and a 25 kA interrupting capacity at 240 V, giving you the strength to endure fault conditions without failing. Thanks to its QRH2 design and molded case construction, it delivers dependable performance while maintaining a compact profile—ideal for cramped panels or tight installations.

Key Features and Benefits

• High protection level: Rated for 250 A with 25 kA interrupting capacity at 240 V, it shields equipment from surges, overloads, and short circuits.
• Compact build: At roughly 7 inches in height and weighing about 4.5 lb, it fits easily into standard enclosures without wasting space.
• User-friendly installation: Comes with load-side lugs to simplify wiring; the bolt-on design ensures secure mounting.
• Reliable performance: Built with thermal-magnetic trip mechanisms for responsive fault handling, while calibrated for 40 °C ambient operation.
• Versatility: HACR-rated and suitable for a variety of applications—industrial or light-commercial.

Technical Specifications

• Poles: 3
  
• Amperage: 250 A
  
• Interrupt Capacity: 25 kA (at 240 V)
  
• Frame Type: QRH2
  
• Dimensions:
  • Height: ~7 in
  • Depth: ~3.39 in
• Weight: ~4.5 lb
  
• Connection Type: Bolt-on (load-side lugs included)
  
• Ambient Rating: 40 °C
  
• Standards: UL 489, CSA, NOM-003
  
• Additional Wire Range: AL/Cu, #3 up to 300 kcmil
  

Material Compliance and Certifications

• Industry Standards: This breaker is manufactured to strict safety standards. It meets UL 489, CSA C22.2, and NOM-003 certifications for electrical protective devices.
• Molded Case Construction: Its molded case design uses durable materials to withstand normal wear, and because it’s a Siemens OEM item, it’s built to the brand’s quality specifications. It is also HACR-rated, making it suitable for HVAC-related loads that involve heating and cooling equipment.

Where It Works Best

• The QRH23B250 is ideal for feeders, subpanels, HVAC systems, lighting banks, or motor loads in commercial or industrial panels. Electricians managing large systems, contractors updating distribution boards, or facility maintenance teams will find its mix of size, capability, and safety features particularly helpful. If you're handling circuits with high fault current potential or tight space constraints, this breaker delivers protection without compromise.