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CUTLER HAMMER

EC3020 - 20Amp Circuit Breaker

EC3020 - 20Amp Circuit Breaker

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EC3020 - 20Amp Circuit Breaker

When you're maintaining or servicing an existing electrical distribution system, matching the correct circuit breaker specifications is critical. The EC3020 Type EC Circuit Breaker is a 20 Amp, 3-pole thermal-magnetic circuit breaker designed for applications that require a breaker with the same form, fit, and functional characteristics as the original equipment. With a 10kA interrupting rating at 240VAC, this breaker helps provide dependable circuit protection while supporting continued operation of compatible electrical systems.

Built to last and engineered for use in compatible Type EC installations, the EC3020 continues to serve as a dependable solution for maintaining existing electrical infrastructure.

Key Features and Benefits

  • 20 Amp current rating for branch and feeder circuit protection
  • 3-pole configuration for three-phase electrical systems
  • Thermal-magnetic trip mechanism responds to overloads and short circuits
  • Non-interchangeable trip unit maintains original breaker characteristics
  • 10kA interrupting capacity at 240VAC
  • Rated for operation in ambient temperatures up to 40°C (104°F)
  • Includes load terminals for installation convenience
  • Designed for form, fit, and functional replacement applications
  • Suitable for compatible Type EC electrical equipment
  • Built to last in demanding commercial and industrial environments

Technical Specifications

  • Part Number: EC3020
  • Type: EC
  • Circuit Breaker Style: Thermal-Magnetic
  • Amperage Rating: 20 Amps
  • Poles: 3
  • Voltage Rating: 240VAC
  • Interrupting Capacity: 10kA @ 240VAC
  • Trip Unit: Non-Interchangeable
  • Temperature Rating: 40°C (104°F)
  • Load Terminals: Included
  • Width: 4.13 in.
  • Height: 6.0 in.
  • Depth: 3.38 in.
  • Dimensions: 4.13"W x 6.0"H x 3.38"D
  • Approximate Shipping Weight: 5.50 lbs.

Material Compliance and Certifications

  • Industry Standards: The EC3020 is manufactured for use in compatible electrical distribution equipment and should be installed in accordance with applicable electrical codes, industry standards, and manufacturer requirements.
  • Compatibility Verification: Before installation, users should verify compatibility with the intended panelboard, switchboard, or power distribution system and ensure all work is performed by qualified electrical personnel.

Where It Works Best

The EC3020 is well suited for commercial, industrial, and institutional facilities operating compatible Type EC electrical equipment. Common applications include panelboards, switchboards, manufacturing plants, warehouses, schools, office buildings, and other facilities where a 20 Amp, 3-pole circuit breaker with a 10kA rating at 240VAC is required. It is particularly useful for maintaining existing systems where preserving the original electrical specifications is important for continued operation and equipment compatibility.


Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.

Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.

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