Q1-250 - 50 Amp Circuit Breaker

Q1-250 - 50 Amp Circuit Breaker

When you're replacing a breaker in older electrical equipment, the details matter. The Q1-250 is a 50-amp, 2-pole Type Q1 plug-on thermal-magnetic circuit breaker rated 10 kA.I.C. at 120/240 VAC. It's intended for compatible applications that require this particular Q1 configuration, so it can be a useful choice when maintaining an existing electrical system rather than changing its original setup. The breaker measures 6.38 inches high, 1.5 inches wide, and 2.31 inches deep and requires four spaces. Its thermal magnetic design provides circuit protection within the breaker's stated ratings. If you're trying to match an existing Q1-250, don't go by appearance alone. Check the part number, amperage, poles, voltage, A.I.C. rating, dimensions, plug-on connection, and space requirement against the equipment specifications. When those details line up, the Q1-250 provides the form, fit, and function needed for its intended application. It's a straightforward replacement component built to last when correctly installed and used within its specified ratings.

Key Features and Benefits

• 50-amp rating for equipment designed around a 50A breaker.
• 2-pole configuration for applications requiring the Q1-250 two-pole design.
• Type Q1 construction for compatible electrical equipment that calls for this breaker type.
• Plug-on connection is compatible with applications designed for the Q1 plug-on style.
• Thermal-magnetic operation provides overload and overcurrent circuit protection within the breaker's ratings.
• 120/240VAC rating for compatible systems with the same voltage requirements.
• 10 kA I.C. at 120/240 VAC provides a clearly defined interrupting rating for proper application matching.
• Four-space design makes it easy to check space requirements before installation.
• Useful for legacy equipment where maintaining the correct breaker configuration and physical fit is important.
• Built to last when properly selected, installed, and operated within its intended application.

Technical Specifications

• Part Number Q1-250
  
• Type Q1
  
• Breaker Type Plug-On Thermal Magnetic Circuit Breaker
  
• Amperage 50A
  
• Poles 2
  
• Voltage 120/240VAC
  
• A.I.C. Rating 10k @ 120/240VAC
  
• Height 6.38 in.
  
• Width 1.5 in.
  
• Depth 2.31 in.
  
• Spaces Required 4
  
• Connection Plug-On
  

Material Compliance and Certifications

• Material compliance details and specific certification listings were not provided in the available specifications for the Q1-250. Any required listings, certifications, or material compliance information should be verified using the markings on the breaker and the applicable product documentation. Installation should follow the equipment requirements as well as applicable electrical codes.

Where It Works Best

• The Q1-250 circuit breaker is best suited for compatible legacy electrical equipment that specifically requires a Type Q1, 50-amp, 2-pole plug-on breaker with a 120/240 VAC rating and 10 kA I.C.
• This is the kind of replacement where matching the small details is important. Start with the Q1-250 part number, then confirm the 50A rating, two poles, voltage, interrupting capacity, plug-on connection, dimensions, and four-space requirement. A breaker that looks similar isn't necessarily the right fit.