E42B070 - 70Amp Circuit Breaker

E42B070 - 70 Amp Circuit Breaker

When you’re working on an existing electrical system, the last thing you want is guesswork. The E42B070 is built to match the original setup—same frame, same ratings, same straightforward installation—so you can get things back up and running without complications. This 70 amp, 2-pole molded case circuit breaker fits E42 frame panelboards and uses a bolt-on design for a secure, dependable connection. It also comes with load-side terminals, which helps save time during installation. With an interrupting capacity of 18kA at 480VAC and 25kA at 240VAC, it’s designed to safely handle fault conditions in commercial and industrial environments. You’ll also find it works well in HVAC-related applications thanks to its HACR rating. Whether it’s part of a maintenance job or a planned replacement, this breaker is made to do its job consistently in systems operating up to 40°C. No extra complexity—just the right fit for the equipment you already have.

Key Features and Benefits

• 70 amp, 2-pole configuration for standard circuit protection
• Designed for E42 frame compatibility—no need to modify existing setups
• Bolt-on mounting provides a firm, secure connection
• HACR rated for heating, air conditioning, and refrigeration systems
• Interrupting capacity: 18kA @ 480VAC, 25kA @ 240VAC
• Includes load-side terminals to streamline installation
• Built for durability in everyday commercial and industrial use

Technical Specifications

• Part Number: E42B070
• Amperage: 70 Amps
• Poles: 2
• Frame Type: E42
• Interrupting Rating:
  • 18kA @ 480VAC
  • 25kA @ 240VAC
• Mounting Type: Bolt-On
• Temperature Rating: 40°C
• HACR Rated: Yes
• Included Components: Load-side terminals
• Height: 6.35 inches
• Shipping Weight: 2.0 lbs

Material Compliance and Certifications

• This breaker meets standard industry expectations for molded case circuit breakers and carries an HACR rating, confirming its suitability for HVAC applications. It is intended for use within its listed electrical and environmental ratings.

Where It Works Best

• Commercial and industrial panelboards using E42 frame breakers
• HVAC systems, including air conditioning and refrigeration units
• Routine maintenance and replacement projects
• Electrical systems operating in standard ambient conditions (up to 40°C)