QRH22B225 - 225 Amp Circuit Breaker

QRH22B225 - 225 Amp Circuit Breaker

Give your electrical systems dependable protection with the Siemens QRH22B225. This 2-pole, 225-amp thermal-magnetic circuit breaker is engineered to protect your 120/240 V circuits from overloads and short circuits, rated at a fault current interruption capacity (AIC) of 25 kA. Its compact size and efficient design make it ideal for tight panel spaces, and its rugged molded case construction delivers lasting performance. Whether you’re powering HVAC equipment, heavy appliances, or critical branch circuits, this breaker brings peace of mind and reliability to your installation.

Key Features and Benefits

• High amperage protection: 225 amps of continuous current handling for demanding circuits
• Strong fault tolerance: 25 kA interrupt rating to safely interrupt high fault currents
• Compact & manageable: At roughly 7 in tall and weighing ~3 lb, it fits nicely in standard panels
• Easy wiring: Load-side lugs are built in to simplify installation
• HACR rated: Suitable for heating, air conditioning, and refrigeration loads
• Thermal-magnetic trip design: Protects against both overloads and fault currents
• UL listed for reverse-feed applications: Adds flexibility in panel design and layout

Technical Specifications

• Poles: 2
• Rated Amperage: 225 A
• Voltage: 120/240 VAC (single-phase)
• Interrupting Rating (AIC): 25,000 A @ 240 V
• Frame / Series: QRH2 molded case breaker
• Trip Type: Thermal + Magnetic
• Dimensions:
  • Height: ~7.0 in
  • Width: ~3.0 in
  • Depth: ~3.39 in
• Weight: ~3.2 lb
• Ambient Temp Rating: 40 °C standard rating
• Connection: Bolt-on installation; load-side lugs standard
• Standards / Certifications: UL 489, CSA, NOM, reverse-feed listing

Material Compliance and Certifications

• Molded Case: The QRH22B225 is built with a molded thermoset case that resists cracking, environmental stress, and electrical insulation breakdown.
• Safety Standards: It meets major North American safety standards, including UL 489, CSA, and NOM.
• Reverse Feed & Accessories: Because it is UL-listed for reverse feed applications, you have more flexibility in how you wire and mount it. Field-installable accessories such as shunt trips or auxiliary switches can be added to expand its capabilities, giving you adaptability in complex control scenarios.

Where It Works Best

• This breaker is a strong choice for residential, commercial, or light industrial environments. It excels in protecting HVAC equipment, refrigeration circuits, high-current appliances, and dedicated branch circuits. It’s instrumental in retrofit or new installations where panel space is limited, yet high-capacity protection is required. Because of its reverse-feed rating and accessory support, it also works well in flexible panel configurations and control panels.