CH3070 - 70Amp Circuit Breaker

CH3070 - 70Amp Circuit Breaker

The CH3070 is a 70 Amp, 3-pole CH bolt-on circuit breaker used in compatible CH panelboards and switchgear. It’s built for three-phase systems where a higher-load circuit needs its own dedicated protection. In most cases, you’ll see this breaker on HVAC equipment, larger pumps, compressors, motors, and other 240V or 480V three-phase loads. When you're replacing one, it’s usually a straightforward match—CH type, 3 poles, 70 amps, and bolt-on connection—so it drops into the panel the same way as the original. 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, so it can be used in HVAC applications where that listing is required. The bolt-on design gives it a solid, direct connection inside compatible equipment. Once installed in a CH-compatible panelboard or switchgear, it handles standard protection for three-phase branch circuits carrying higher loads.

Key Features and Benefits

• 70 Amp 3-pole breaker for three-phase circuits
• CH Type bolt-on design
• 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: CH3070
  
• Type: CH
  
• Poles: 3
  
• Amperage Rating: 70 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.): 3.0"W x 4.0"L x 2.63"D
  
• 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 equipment. Always confirm it matches the panel before installing. Installation should follow applicable electrical codes and be handled by qualified personnel.

Where It Works Best

The CH3070 is a fit-for-purpose breaker for many commercial electrical panels, industrial distribution systems, three-phase HVAC equipment, higher-load motors and pump circuits, compressor and refrigeration systems, control circuits, mechanical room systems, maintenance and replacement work, CH-compatible bolt-on panelboards and switchgear.