QB2430-40 - 40 Amp Circuit Breaker

QB2430-40 - 40 Amp Circuit Breaker

The QB2430-40 is a 40 amp, 3-pole circuit breaker built for electrical panels that require a bolt-on QB frame breaker. It’s designed to provide dependable protection against overloads and short-circuit conditions while fitting cleanly into compatible panel configurations. For contractors and maintenance teams, this breaker works well as a like-for-like replacement when an existing unit needs to be serviced or swapped out without altering the panel layout.

With a compact footprint and secure bolt-on mounting, the QB2430-40 installs firmly and stays in place during normal operation. It’s a practical choice for applications where correct fit, proper ratings, and consistent performance are more important than unnecessary extras. Whether used during scheduled maintenance or a system repair, this breaker helps keep electrical systems operating safely and reliably.

Key Features and Benefits

• 40 Amp, 3-Pole Protection: Designed to interrupt power during overloads or fault conditions.
• Bolt-On Mounting Style: Provides a secure connection inside compatible panels.
• Clean Panel Fit: Compact sizing helps prevent interference with adjacent breakers.
• Direct Replacement Use: Matches the form, fit, and function of breakers specified for QB frame applications.
• Everyday Panel Durability: Built to handle normal electrical panel environments and routine use.

Technical Specifications

• Poles: 3
• Current Rating: 40 Amps
• Voltage Rating: 240 VAC
• Interrupting Rating: 10 kA
• Frame Type: QB
• Mounting: Bolt-On
• Weight: Approximately 3.25 lb
• Dimensions:
  • Width: 2.25 inches
  • Length: 4.81 inches
  • Depth: 2.50 inches

Material Compliance and Certifications

• This circuit breaker is manufactured to meet recognized electrical safety and performance standards for its class and rating. It is intended for use in systems that require compliance with commonly accepted electrical codes and testing requirements, providing added confidence in proper operation when installed in suitable applications.

Where It Works Best

• The QB2430-40 is commonly used in residential, commercial, and light industrial electrical systems that call for a 40 amp, 3-pole, bolt-on breaker with a QB frame. It’s especially useful for maintenance and replacement projects where maintaining panel compatibility is essential and downtime needs to be kept to a minimum.