QOB2701021 - 70A Circuit Breaker

QOB2701021 - 70A Circuit Breaker

The QOB2701021 is a 70-amp, 2-pole Type QOB bolt-on circuit breaker with an integrated 120VAC shunt trip for applications where remote breaker operation is needed. Instead of having to manually switch the breaker off at the panel, the shunt trip allows it to open when it receives the proper external signal. That's why this style of breaker is often used with emergency stop stations, fire alarm systems, and building automation controls.

Beyond the shunt trip feature, this breaker provides dependable protection against overloads and short circuits in 120/240VAC electrical systems. The bolt-on mounting helps keep the breaker securely fastened in compatible panelboards, making it a common choice for commercial buildings, industrial facilities, and other locations where equipment sees daily use. Its 10kA interrupting rating gives it the capacity to safely interrupt available fault current within its rating.

Whether you're replacing an existing breaker with the same specifications or servicing an electrical distribution system, the QOB2701021 offers the combination of ratings and features needed for applications that require both circuit protection and remote tripping.

Key Features and Benefits

• 70-amp current rating
• Two-pole configuration
• Bolt-on mounting for compatible panelboards
• Built-in 120VAC shunt trip for remote breaker operation
• 10kA interrupting capacity at 120/240VAC
• Helps protect circuits from overloads and short circuits
• Suitable for commercial and industrial electrical systems

Technical Specifications

• Part Number: QOB2701021
• Type: QOB
• Mounting Style: Bolt-On
• Poles: 2
• Amperage: 70 Amps
• Voltage Rating: 120/240VAC
• Interrupting Capacity: 10kA @ 120/240VAC
• Shunt Trip: 120VAC
• Dimensions:
  • Height: 3.5 in.
  • Width: 2.25 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Industry Standards: This circuit breaker is manufactured for use in compatible electrical distribution equipment and is intended to meet applicable industry standards for molded case circuit breakers.
• Installation Requirements: Always verify that the electrical ratings, mounting configuration, and panel compatibility match your application before installation. Installation should be completed in accordance with applicable electrical codes.

Where It Works Best

• The QOB2701021 is commonly used in applications that need both overcurrent protection and remote tripping, including commercial buildings, manufacturing facilities, office buildings, schools and universities, healthcare facilities, building automation systems, fire alarm systems, emergency shutdown circuits, and electrical panel maintenance and replacement projects.