Q1-350 - 50 Amp Circuit Breaker

Q1-350 - 50 Amp Circuit Breaker

Need a Q1-350 circuit breaker for an existing electrical system? This 50-amp, 3-pole Type Q1 breaker is a plug-on, thermal-magnetic unit intended for equipment designed around this specific breaker style. It is rated 10k AIC at 240VAC and measures 6.38 inches high, 2.25 inches wide, and 2.31 inches deep. One detail that's easy to overlook is space: the Q1-350 requires six spaces, so it's worth checking the existing setup carefully before installation. For maintenance and replacement work, the real advantage here is straightforward—the breaker provides the familiar form, fit, and electrical characteristics required by compatible legacy equipment. Its durable construction is built to last when your breaker is properly matched to the application and used within its stated ratings. Since circuit breakers aren't interchangeable based on amperage alone, compare the part number, breaker type, number of poles, voltage, AIC rating, dimensions, and mounting arrangement to the existing unit.

Key Features and Benefits

• 50-amp rating for applications designed around this amperage.
• Three-pole configuration for compatible electrical systems requiring a 3-pole breaker.
• The Type Q1 design helps identify the correct physical and electrical configuration of existing equipment.
• Plug-on mounting for equipment that accepts this connection style.
• Thermal-magnetic operation provides overcurrent protection within the breaker's intended application.
• 10k AIC at 240VAC interrupting rating.
• The six-space requirement provides an important reference for checking available panel space.
• Defined dimensions make it easier to compare the Q1-350 with the breaker currently installed.
• Durable construction suited to ongoing service in properly matched electrical equipment.
• A practical choice for legacy equipment maintenance when the system specifically requires the Q1-350 configuration.

Technical Specifications

• Part Number Q1-350
  
• Type Q1
  
• Breaker Style Plug-On Thermal Magnetic Circuit Breaker
  
• Amperage 50 Amps
  
• Poles 3
  
• A.I.C. Rating & Voltage 10k @ 240VAC
  
• Height 6.38 in.
  
• Width 2.25 in.
  
• Depth 2.31 in.
  
• Spaces Required 6
  
• Mounting Style Plug-On
  

Material Compliance and Certifications

• Specific certification and material-compliance information was not provided with the available specifications for the Q1-350. For that reason, no UL, CSA, RoHS, or other certification is being claimed here.
• If a particular certification or compliance standard is required for the job, check the markings on the individual breaker and verify them against the appropriate technical documentation. Local code requirements and the requirements of the equipment being serviced should also be considered.

Where It Works Best

• The Q1-350 makes the most sense for compatible legacy electrical equipment designed to use a Type Q1 plug-on circuit breaker with these particular ratings and dimensions. It's especially relevant for repair and maintenance work where the goal is to match the existing breaker—not change the equipment configuration.
• Before putting it into service, compare it with the breaker being replaced. Check for a 50-amp rating, three-pole, Type Q1 configuration, plug-on mounting, 10k AIC at 240VAC, six-space requirement, and the correct physical dimensions.
• That's important because two breakers can share the same amperage and still be very different parts. With the Q1-350, confirming those details is the simplest way to determine whether its form, fit, and function match the application.