CH3020 - 20Amp Circuit Breaker

CH3020 - 20Amp Circuit Breaker

The CH3020 is a 20 Amp, 3-pole CH bolt-on circuit breaker used in compatible CH panelboards and electrical distribution equipment. It’s typically used in three-phase systems where a smaller branch circuit needs dedicated protection.

In most cases, this breaker shows up on things like HVAC control circuits, small motors, pumps, compressors, and other light three-phase loads. When you're replacing one, it usually comes down to matching a few basics—CH type, 3 poles, 20 amps, and bolt-on style—so it fits the existing panel the same way the original did.

The CH3020 is rated for 240VAC and 480VAC systems, with a 14kA interrupting rating at 480VAC and 65kA at 240VAC. It uses a thermal magnetic trip mechanism with a non-interchangeable trip unit and is designed for 50/60Hz operation in 40°C environments. It is also HACR rated, so it can be used in HVAC-related applications where that listing is required.

The bolt-on connection provides a solid mechanical and electrical connection inside compatible equipment. Once installed in the correct CH panelboard or switchgear, it becomes part of the standard protection for low-amp three-phase circuits.

Key Features and Benefits

• 20 Amp 3-pole breaker for three-phase circuits
• CH Type bolt-on design for compatible panels
• Thermal magnetic trip mechanism
• Non-interchangeable trip unit
• 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 for maintenance and replacement work

Technical Specifications

• Part Number: CH3020
  
• Type: CH
  
• Poles: 3
  
• Amperage Rating: 20 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
• Small motors and pump circuits
• Compressor and refrigeration equipment
• Control and auxiliary circuits
• Mechanical room electrical systems
• Maintenance and replacement work
• CH-compatible bolt-on panelboards and switchgear