QBHW2050H - 50 Amp Circuit Breaker

QBHW2050H - 50 Amp Circuit Breaker

Meet the QBHW2050H, a dependable two-pole, 50‑amp thermal‑magnetic circuit breaker engineered for demanding electrical applications. Compact (just 3.4″ × 3.5″ × 3.4″ and weighing 0.7 lb), this breaker delivers consistent 240 V protection with a high interrupt capacity — making it ideal for industrial and heavy-duty residential environments. Its bolt-on mounting design ensures a secure, vibration-resistant installation, while its two‑pole configuration offers reliable overcurrent protection and safe disconnection for dual‑phase circuits. Built to perform, the QBHW2050H offers peace of mind for electricians, contractors, and end-users alike.

Key Features and Benefits

• Solid 50‑Amp Protection: Designed for 240 V circuits, the two-pole configuration ensures both phases are protected, reducing the risk of overload or phase imbalance.
• High 22 kAIC Interrupt Rating: With a 22 kAIC interrupt rating, this breaker can safely interrupt high fault currents — offering critical protection in heavy-load or industrial settings.
• Compact, Easy-to-Install Form Factor: Its compact dimensions and bolt-on mounting make installation quick and secure, even in tight breaker panels or industrial enclosures.
• Thermal-Magnetic Trip Mechanism: Combines long-term overload protection (thermal) and instantaneous overcurrent/fault response (magnetic), giving reliable performance under varying load conditions.
• Durable Construction: Though lightweight, the design stands up to everyday use, offering dependable power management over extended service life.

Technical Specifications

• Catalog Number: QBHW2050H
  
• Type: Thermal‑magnetic circuit breaker (two-pole)
  
• Mounting Method: Bolt-on
  
• Amperage Rating: 50 A
  
• Voltage Rating: 240 V (two-pole)
  
• Interrupt Rating: 22 kAIC
  
• Trip Type: Non‑Interchangeable
  
• Product Dimensions:
  • Length: 3.4″
  • Width: 3.5″
  • Height: 3.4″
• Product Weight: 0.7 lb
  

Material Compliance and Certifications

• UL Listed and CSA Certified: The QBHW2050H comes certified to the highest safety and compliance standards — it is both UL Listed and CSA Certified, confirming that it meets rigorous North American electrical safety guidelines.
• HACR-Rated: Indicates compatibility with Heating, Air Conditioning, and Refrigeration equipment circuits. These certifications attest to the breaker’s safety, reliability, and compliance with relevant codes for commercial, industrial, and residential use.

Where It Works Best

• Industrial control panels and heavy machinery circuits require high interrupt capacity and dual-phase protection.
• Commercial HVAC systems, pump controls, and refrigeration units — particularly where HACR-rated breakers are specified.
• Residential or light-commercial sub-panels needing dependable 240 V overcurrent protection for dryers, ranges, or multi-phase equipment.
• Retrofit or upgrade projects where a bolt-on two-pole breaker is needed to replace older units or expand capacity.