Q350 - 50Amp Circuit Breaker

Q350 - 50Amp Circuit Breaker

Need a Q350 circuit breaker for a compatible electrical system? The Q350 is a 50-amp, 3-pole, Type QP plug-in circuit breaker rated for 240VAC with a 10 kA interrupt rating. It's a practical choice when you need clearly defined electrical ratings and a plug-in configuration that matches the requirements of your existing equipment. The three-pole design provides simultaneous protection across three poles. At the same time, its HACR rating makes it suitable for appropriate heating, air-conditioning, and refrigeration applications where an HACR-rated breaker is specified. It's also rated for operation at 40°C. Measuring just 2.88 inches high, 3.0 inches wide, and 2.56 inches deep, the Q350 packs its 50-amp, three-pole protection into a compact footprint. Whether you're replacing an existing breaker or maintaining electrical distribution equipment, the key is getting the specifications right, and the Q350 gives you the ratings you need to quickly determine whether it's the right match for your application.

Key Features and Benefits

• Rated at 50 amps for compatible electrical circuits where this amperage is required.
• Provides simultaneous protection across three poles for applicable electrical systems.
• Designed for applications requiring a breaker rated for 240 VAC.
• Provides a 10,000-amp interrupting capacity at 240VAC.
• Type QP configuration makes it easier to identify and match the breaker type required by compatible electrical distribution equipment.
• Built with a plug-in mounting configuration for equipment designed to accept this breaker type.
• Suitable for appropriate heating, air-conditioning, and refrigeration applications when an HACR-rated breaker is required.
• Designed for operation at its specified 40°C temperature rating.
• At approximately 2.88" H × 3.0" W × 2.56" D, the Q350 offers three-pole protection without taking up unnecessary space.

Technical Specifications

• Part Number: Q350
  
• Type: QP
  
• Amperage: 50A
  
• Poles: 3
  
• Voltage: 240VAC
  
• A.I.C. Rating: 10kA at 240VAC
  
• Mounting Type: Plug-In
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 2.88 in.
  • Width: 3.0 in.
  • Depth: 2.56 in.

Material Compliance and Certifications

• The Q350 Type QP circuit breaker is HACR-rated and, according to the manufacturer's technical documentation, complies with UL 489 requirements. Documentation for the QP breaker family also identifies applicable CSA C22.2 No. 5-16 and NMX-J-266-ANCE standards. For QP breakers rated at 50 amps or above, the manufacturer's documentation specifies use with 75°C wire.
  Because circuit breaker selection directly affects electrical safety, always confirm the Q350's ratings and compatibility against the equipment labeling, manufacturer documentation, conductor requirements, and applicable electrical codes before installation.

Where It Works Best

• The Q350 50 amp 3-pole circuit breaker is a strong fit for compatible electrical distribution equipment that specifically calls for a Type QP plug-in breaker, 50A rating, three-pole configuration, and operation at 240VAC. It can be useful in replacement and maintenance applications where matching the existing breaker's specifications is essential.
  Its HACR rating also makes the Q350 suitable for qualifying heating, air-conditioning, and refrigeration applications when the equipment specifications call for an HACR-rated breaker with these electrical characteristics.