QRH22B175 - 175 Amp Circuit Breaker

QRH22B175 - 175 Amp Circuit Breaker

Protect your circuits with confidence using the Siemens QRH22B175 — a 2-pole, 175 amp molded-case circuit breaker designed for 120/240 V systems with a high interrupting rating of 25 kA. Built within the QRH2 frame, its compact profile (approximately 7 inches tall, ~3 lbs) allows for straightforward integration into many standard panels without occupying unnecessary space. The molded case design ensures consistent protection across overloads and short circuits, while the included load-side lugs enable fast, clean wiring. With its HACR rating, it is also ready for HVAC and refrigeration applications.

Key Features and Benefits

• High-capacity protection: Rated for 175 A and 25 kA interrupting capacity, this breaker handles substantial loads reliably.
• Compact footprint: The smaller size (approx. 7″ height, 3 lb weight) fits neatly in most panel boards.
• HACR-rated for HVAC systems: Compatible with heating, air conditioning, and refrigeration circuits.
• Easy wiring: Comes with load-side lugs to simplify installation of branch circuits.
• Durable molded case design: Built to last under regular usage, offering stable long-term electrical protection.
• Field accessory ready: Supports internal accessories like auxiliary switches or shunt trips (where applicable).

Technical Specifications

• Poles: 2 (double pole)
• Rated Current: 175 A
• Voltage Rating: 120/240 VAC
• Interrupting Capacity: 25 kA at 240 V
• Frame Type: QRH2 (QR series)
• Dimensions:
  • Height: ~7.00 in (178 mm)
  • Width: ~3.00 in
  • Depth: ~2.53 in
• Weight: ~3.197 lb (≈ 1.45 kg)
• Trip Type: Thermal-magnetic (Long-time + Instantaneous)
• Connection: Load-side lugs (bolt-on style)
• Ambient Temperature Rating: 40 °C standard

Material Compliance and Certifications

• UL 489 / CSA C22.2 / NOM-003: Certified safety standards
• Siemens Quality Protocols: Designed in line with Siemens’ internal quality protocols to ensure performance consistency and reliability
• HACR Qualified: Qualified as HACR (heating, air conditioning, refrigeration) compliant, making it suitable for mixed electrical and HVAC loads
• Durable Materials: Uses materials selected for stable electrical properties and durability under load cycling

Where It Works Best

• This breaker is ideal for residential, commercial, or light industrial environments that require dependable protection for medium-to-high capacity circuits. It’s especially well-suited for:
• Feeder protection in panel boards or switchboards
• HVAC, refrigeration, or air conditioning circuit protection (thanks to its HACR rating)
• Replacement or upgrade of existing electrical panels where space is constrained
• Environments that demand high interrupting capacity near sensitive loads