CHB280 - 80Amp Circuit Breaker

CHB280 - 80Amp Circuit Breaker

The Eaton CHB280 is an 80-amp, two-pole circuit breaker designed for Eaton CH Loadcenters and is typically used as a direct replacement for what’s already in the panel. It’s built for 120/240V circuits where both legs need to trip together, and it fits into compatible CH panels using a plug-in design that keeps installation and replacement work simple and consistent.

In real-world setups, this breaker is usually found in residential and light commercial panels handling heavier 240V branch circuits. Most of the time, it’s not about changing anything in the system—it’s about matching the existing breaker so the panel keeps running the way it was originally designed.

Installation is straightforward in compatible Eaton CH Loadcenters. The plug-in style lets it seat directly into the panel without modification. If you’re replacing an existing breaker, it’s usually a quick swap—remove the old one, install the new breaker, and the circuit is back in service.

Inside, the CHB280 uses a thermal magnetic trip system that responds to both overloads and short circuits as they occur. It’s rated at 10 kAIC, which fits typical residential and light commercial fault levels in CH systems.

With support for #4–1/0 AWG wire, it’s designed for larger branch circuits that require heavier conductors. The two-pole design ensures both legs disconnect simultaneously, as required for 240V loads and shared circuit protection.

At its core, the CHB280 is a straight replacement breaker for Eaton CH Loadcenters. It’s meant to keep existing systems consistent and working as originally built, without changing the panel layout or wiring setup.

Key Features and Benefits

• 80 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 #4–1/0 AWG conductors
• Two-pole switching for simultaneous disconnect
• Keeps the original CH panel layout unchanged
• Common in residential and light commercial systems
• Direct replacement for existing CH breakers

Technical Specifications

• Catalog Number: CHB280
  
• Product Type: Thermal magnetic circuit breaker
  
• Type: CHB
  
• Amperage Rating: 80 Amps
  
• Voltage Rating: 120/240V
  
• Number of Poles: 2
  
• Interrupt Rating: 10 kAIC
  
• Wire Size: #4–1/0 AWG
  
• Mounting Style: Plug-in (Eaton CH Loadcenters)
  
• Dimensions: 5.8 in D x 1.4 in H x 3.6 in W
  
• Weight: 0.45 lb

Material Compliance and Certifications

• The Eaton CHB280 is UL 489 listed, meeting recognized safety standards for branch circuit protection. It is intended for use in Eaton CH Loadcenters and should be installed by a qualified electrician in accordance with 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 80A 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