CH3040 - 40Amp Circuit Breaker

CH3040 - 40Amp Circuit Breaker

The CH3040 is a 40 Amp, 3-pole CH bolt-on circuit breaker used in compatible CH panelboards and switchgear. It’s the kind of breaker you’ll typically see in three-phase systems where a mid-sized load needs its own dedicated circuit protection.

In the field, this one usually ends up on HVAC equipment, pumps, compressors, and small-to-medium motors running on 240V or 480V three-phase power. When your replacing it, the process is usually straightforward—match the CH type, 3 poles, 40 amps, and bolt-on style, and make sure it’s going back into a compatible CH panel.

This breaker is rated for 240VAC and 480VAC systems, with a 14kA interrupting rating at 480VAC and 65kA at 240VAC. It uses a thermal magnetic trip unit with a fixed, non-interchangeable design, and is rated for 50/60Hz operation in 40°C environments. It is also HACR rated, which makes it acceptable for HVAC applications where that listing is required.

The bolt-on connection gives it a direct, solid mount inside compatible equipment. Once installed, it serves as standard protection for three-phase branch circuits in CH-compatible panelboards and switchgear.

Key Features and Benefits

• 40 Amp 3-pole breaker for three-phase circuits
• CH Type bolt-on design for compatible panels
• Thermal magnetic trip unit
• Fixed trip design (non-interchangeable)
• Rated for 240VAC / 480VAC systems
• 14kA interrupting rating at 480VAC
• 65kA interrupting rating at 240VAC
• HACR rated for HVAC applications
• 50/60Hz operation
• Rated for 40°C environments
• Used in CH-compatible panelboards and switchgear
• Common replacement for maintenance and repair work

Technical Specifications

• Part Number: CH3040
  
• Type: CH
  
• Poles: 3
  
• Amperage Rating: 40 Amps
  
• Voltage Rating: 240VAC / 480VAC
  
• A.I.C. Rating: 14kA @ 480VAC / 65kA @ 240VAC
  
• Mounting Style: Bolt-On
  
• Trip Type: Thermal Magnetic
  
• Frequency: 50/60Hz
  
• Temperature Rating: 40°C
  
• Dimensions (Approx.):
  • Height: 4.0 in.
  • Width: 3.0 in.
  • Depth: 2.63 in.
• Ship Weight: 3.75 lbs
  

Material Compliance and Certifications

• This breaker is intended for use in compatible electrical distribution equipment. Always confirm panel compatibility before installation. Installation should follow applicable electrical codes and be performed by qualified personnel.

Where It Works Best

• Commercial electrical panels
• Industrial distribution systems
• Three-phase HVAC equipment
• Medium-duty motors and pump circuits
• Compressor and refrigeration systems
• Control circuits
• Mechanical room electrical setups
• Maintenance and replacement work
• CH-compatible bolt-on panelboards and switchgear