CHB240GF - 40Amp Circuit Breaker

CHB240GF - 40Amp Circuit Breaker

The Eaton CHB240GF is a 40 Amp, two-pole ground fault circuit breaker made for Eaton CH Loadcenters, and it’s typically used in setups where you need a direct replacement that matches an existing bolt-on breaker layout. It’s designed for 120/240V circuits where both legs need to trip together, and it also adds ground fault protection, which is often required on specific branch circuits depending on code or application.

In practice, this breaker is usually found in residential or light commercial CH panels where the original setup uses bolt-on style breakers. The idea is pretty simple—replace what’s already there without changing the panel design or reworking the system. It keeps everything consistent inside the loadcenter, which is especially important when you’re maintaining older or already-installed CH equipment. Inside, the CHB240GF uses a thermal magnetic trip system that responds to both overloads and short circuits. It also includes ground fault protection, which monitors for leakage current and helps disconnect the circuit when needed.

With a two-pole 40 amp design, it’s commonly used on 240V branch circuits where both conductors need to disconnect at the same time. The #8–4 AWG wire range lines up with standard heavier branch circuit wiring for this size breaker.

At the end of the day, the CHB240GF is a straightforward replacement breaker for Eaton CH bolt-on panels, built for keeping existing systems working the way they were originally installed while meeting ground fault protection requirements where needed.

Key Features and Benefits

• 40 Amp, 2-pole ground fault breaker for Eaton CH Loadcenters
• Bolt-on mounting style for secure panel connection
• Built-in ground fault protection
• Designed for 120/240V branch circuits
• Thermal magnetic protection for overloads and short circuits
• 10 kAIC interrupt rating for standard fault levels
• Two-pole switching for shared disconnect
• Compatible with #8–4 AWG conductors
• Used in residential and light commercial CH systems
• Direct replacement for existing CH bolt-on breakers

Technical Specifications

• Part Number: CHB240GF
  
• Type: CHBGF
  
• Amperes: 40A
  
• Poles: 2
  
• Voltage Rating: 120/240VAC
  
• Interrupting Rating: 10 kAIC
  
• Mounting Style: Bolt-on
  
• Dimensions: 1.50"W x 4.63"L x 2.50"D
  
• Height: 4.63 in
  
• Width: 1.5 in
  
• Depth: 2.5 in
  
• Approx. Ship Weight: 2.50 lbs

Material Compliance and Certifications

• The Eaton CHB240GF is built to meet UL 489 standards for branch circuit protection equipment. It is intended for use in Eaton CH Loadcenters and should be installed by a qualified electrician following all applicable electrical codes and safety requirements.

Where It Works Best

• Eaton CH Loadcenters with bolt-on breaker setups
• 120/240V residential and light commercial circuits
• Two-pole circuits requiring ground fault protection
• Replacement of existing CH bolt-on style breakers
• Maintenance work in installed CH panel systems
• Circuits where both legs must disconnect together
• Applications needing CH-compatible fit and function
• Standard protection in established CH installations