CHB270 - 70Amp Circuit Breaker

CHB270 - 70Amp Circuit Breaker

The Eaton CHB270 is a 70 Amp, two-pole circuit breaker designed for Eaton CH Loadcenters, and it’s commonly used when you need a direct replacement that matches what’s already installed in an existing panel. It’s built for 120/240V circuits where both legs need to trip together, and it installs into compatible CH series panels using a plug-in design that keeps everything aligned with the original setup.

In real-world use, this breaker is typically found in residential and light-commercial panels, handling larger 240V branch circuits. Most of the time, it’s chosen for replacement work where the goal is simple—to match the existing breaker so the system continues operating as originally designed, without changing the panel layout or wiring.

If you’re replacing an existing CH breaker, it’s usually a quick, familiar process—remove the old one, install the new breaker, and the circuit is back in service. Inside, the CHB270 uses a thermal-magnetic trip system that responds to both overload conditions and short circuits as they occur. It’s rated at 10 kAIC, which is standard for residential and light commercial fault levels in CH systems.

With support for #8–2 AWG conductors, it accommodates the heavier wiring commonly used on 70-amp branch circuits. The two-pole design ensures both conductors disconnect at the same time, which is required for 240V loads and any circuit that shares protection across both legs.

Key Features and Benefits

• 70 Amp, 2-pole breaker for Eaton CH Loadcenters
• Designed for 120/240V branch circuits
• Plug-in installation for compatible CH panels
• Thermal magnetic protection for overloads and short circuits
• 10 kAIC interrupt rating for standard fault conditions
• Compatible with #8–2 AWG conductors
• Two-pole switching for simultaneous disconnect
• Maintains original CH panel configuration
• Common in residential and light commercial systems
• Direct replacement for existing CH breakers

Technical Specifications

• Catalog Number: CHB270
  
• Product Type: Thermal magnetic circuit breaker
  
• Type: CHB
  
• Amperage Rating: 70 Amps
  
• Voltage Rating: 120/240V
  
• Number of Poles: 2
  
• Interrupt Rating: 10 kAIC
  
• Wire Size: #8–2 AWG
  
• Mounting Style: Plug-in (Eaton CH Loadcenters)
  
• Dimensions: 3.7 in D x 3.2 in H x 2.2 in W
  
• Weight: 0.9 lb

Material Compliance and Certifications

• The Eaton CHB270 is UL 489-listed, meeting recognized safety standards for branch-circuit protection. It is intended for installation in Eaton CH Loadcenters and should be installed by qualified electrical personnel in accordance with all applicable electrical codes and safety requirements.

Where It Works Best

• Eaton CH Loadcenters and CH panelboards
• 120/240V residential and light commercial circuits
• Two-pole branch circuits requiring a shared disconnect
• Replacement of existing CH 70A breakers
• Maintenance work on installed CH electrical systems
• Circuits that require both legs to trip together
• Situations where matching the existing panel layout matters
• Standard protection in established CH systems