Q1B270 - 70 Amp Circuit Breaker

Q1B270 - 70 Amp Circuit Breaker

When you're replacing a breaker in existing equipment, getting the details right matters. The Q1B270 is a 70-amp, 2-pole thermal magnetic circuit breaker with a bolt-on mounting design for compatible Type Q1B applications. It is rated 10 kA.I.C. at 120/240 VAC and requires four spaces. Physically, the breaker measures 6.38 inches high, 1.5 inches wide, and 2.31 inches deep. Those details are especially important when working with legacy electrical equipment, where the correct fit and configuration can matter just as much as the amp rating. The Q1B270 is built to last when installed and used within its specified ratings, making it a practical choice for maintaining compatible systems that call for this particular breaker configuration. Before installation, compare the part number and complete specifications with the existing breaker and equipment requirements to confirm the proper match.

Key Features and Benefits

• 70-amp rating for compatible circuits requiring a 70A breaker.
• 2-pole design for applications calling for a two-pole configuration.
• Bolt-on mounting provides a secure connection in compatible equipment.
• Thermal-magnetic operation provides overcurrent protection within the breaker's specified application.
• Rated 10 kA.I.C. at 120/240 VAC.
• Type Q1B configuration for equipment designed around this breaker type.
• Requires four spaces, an important detail to check when confirming fit.
• Built for lasting service when properly installed and used within its ratings.

Technical Specifications

• Part Number: Q1B270
  
• Type: Q1B
  
• Breaker Type: Thermal Magnetic Circuit Breaker
  
• Mounting Style: Bolt-On
  
• Amperage: 70A
  
• Poles: 2
  
• Voltage: 120/240VAC
  
• A.I.C. Rating: 10 kA
  
• Spaces Required: 4
  
• Height: 6.38 in.
  
• Width: 1.5 in.
  
• Depth: 2.31 in.
  

Material Compliance and Certifications

• Specific material compliance information and certification details are not provided in the available specifications for the Q1B270. Rather than assume certifications that may not apply to a particular breaker, check the product markings and the requirements of the equipment where it will be installed.
• For replacement applications, verify the full set of specifications, not just the amperage. This includes the Q1B type, two-pole configuration, 70A rating, 120/240 VAC rating, 10 kA.I.C., bolt-on mounting, dimensions, and four-space requirement.

Where It Works Best

• The Q1B270 circuit breaker is intended for compatible electrical equipment that uses Type Q1B bolt-on breakers. It makes the most sense in legacy electrical systems where the existing application calls for the same physical configuration and electrical ratings.
• That can include maintenance and replacement work in commercial, industrial, institutional, and other facilities with compatible equipment still in operation. When you're trying to keep an existing system in service, the objective isn't to change what already works; it's to find the correct form, fit, and function for the application.