QC2050 - 50 Amp Circuit Breaker

QC2050 - 50 Amp Circuit Breaker

The QC2050 is a 2-pole, 50 amp thermal magnetic circuit breaker engineered to provide dependable overcurrent and short-circuit protection in your 120/240VAC electrical distribution systems. Built with a 10kA interrupting capacity (A.I.C.), this Type QC Quicklag breaker is well-suited for residential, commercial, and light industrial applications where reliable circuit protection is essential. Its cable-in/cable-out configuration helps you simplify installation, while the HACR rating makes it appropriate for use in heating, air conditioning, and refrigeration equipment when installed according to applicable electrical codes. Designed to operate at 40°C, the QC2050 delivers consistent performance in demanding environments, helping you safeguard electrical equipment while supporting long-term system reliability.

Key Features and Benefits

• 50 Amp Rating: Ideal for protecting higher-capacity 120/240VAC branch circuits.
• 2-Pole Design: Simultaneously disconnects both poles for enhanced circuit safety.
• Thermal Magnetic Trip Mechanism: Combines overload and instantaneous short-circuit protection for dependable operation.
• 10kA Interrupting Capacity: Helps safely interrupt fault currents up to 10,000 amps at 120/240VAC.
• Type QC (Quicklag): Designed for compatibility with electrical systems requiring QC-style circuit breakers.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration applications where permitted by code.
• Cable-In/Cable-Out Configuration: Supports straightforward installation and secure conductor connections.
• 40°C Rated: Built to perform reliably in elevated ambient temperatures common in electrical installations.
  

Technical Specifications

• Part Number: QC2050
  
• Type: QC
  
• Poles: 2
  
• Amperage: 50 Amps
  
• Voltage Rating: 120/240VAC
  
• Interrupting Capacity (A.I.C.): 10kA @ 120/240VAC
  
• Trip Mechanism: Thermal Magnetic
  
• HACR Rated: Yes
  
• Operating Temperature: 40°C
  
• Connection Type: Cable-In / Cable-Out
  
• Dimensions:
  • Height: 3.75 in.
  • Width: 2.0 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Industry Standards: The QC2050 is manufactured for use in electrical distribution systems and is designed to meet applicable industry standards for circuit protection.
• Installation Requirements: Always verify compatibility with your panelboard and ensure installation complies with the latest National Electrical Code (NEC) requirements, local electrical codes, and manufacturer specifications.
  

Where It Works Best

• The QC2050 is an excellent choice for protecting 50-amp, 120/240VAC branch circuits in residential, commercial, and light industrial electrical systems. It is commonly used for larger electrical loads such as HVAC equipment, air conditioning units, refrigeration systems, electric heating equipment, subpanels, and other applications requiring dependable two-pole overcurrent protection. Its thermal magnetic design and HACR rating make it a practical solution wherever consistent circuit protection and reliable performance are essential.