EB3020 - 20Amp Circuit Breaker

EB3020 - 20 Amp Circuit Breaker

The EB3020 circuit breaker is a 3-pole, 20-amp thermal-magnetic circuit breaker designed for use in legacy electrical distribution equipment. Built on the EB frame platform, this breaker provides dependable branch circuit protection by automatically interrupting power when an overload or short circuit is detected. With a 10kA interrupting rating at 240VAC and a 40°C operating rating, the EB3020 is intended for panelboards manufactured prior to 1989 that require this specific form, fit, and connection style. The breaker features a non-interchangeable trip unit, ensuring consistent protection characteristics aligned with its original design parameters. Load terminals are included to support proper installation and secure conductor connections. Designed for long service life, the EB3020 helps maintain the safe operation of compatible electrical systems where maintaining original equipment configuration is essential.

Key Features and Benefits

• 3-Pole Configuration – Provides protection across three conductors in three-phase electrical systems.
• 20 Amp Rating – Suitable for circuits requiring controlled current protection at the 20A level.
• Thermal-Magnetic Protection – Combines thermal response for overload conditions and magnetic response for short-circuit events.
• 10kA Interrupting Capacity at 240VAC – Rated to safely interrupt fault currents up to 10,000 amperes.
• EB Frame Design – Manufactured to match the physical dimensions and connection style required for EB-frame panel installations.
• Non-Interchangeable Trip Unit – Factory-matched trip mechanism designed as an integral component of the breaker.
• Load Terminals Included – Supports straightforward conductor termination during installation.
• 40°C Rated Operation – Built to operate within standard electrical equipment temperature environments.
• Legacy Panel Compatibility – Designed specifically for electrical panels manufactured before 1989 that require EB-series breakers.
• Durable Construction – Built with components intended for long-term use in compatible distribution systems.

Technical Specifications

• Part Number: EB3020
• Breaker Type: Thermal-Magnetic Circuit Breaker
• Frame Type: EB
• Poles: 3
• Current Rating: 20 Amps
• Voltage Rating: 240VAC
• Interrupting Rating (A.I.C.): 10kA @ 240VAC
• Trip Unit: Non-Interchangeable
• Operating Temperature Rating: 40°C
• Terminals: Load terminals included
• Designed For: Panels manufactured prior to 1989
• Approximate Shipping Weight: 4.13 lbs
• Approximate Shipping Height: 6.0 in

Material Compliance and Certifications

• Industry Standards: The EB3020 circuit breaker is manufactured in accordance with industry standards commonly applied to molded case circuit breakers used in North American electrical distribution systems.
• Installation Compliance: Materials and construction are intended to meet applicable electrical equipment safety requirements for installation within compatible panelboards and distribution equipment. Proper installation should always follow the applicable electrical code and the original equipment manufacturer’s specifications.

Where It Works Best

• The EB3020 is well suited for maintenance, repair, and replacement projects involving legacy electrical panels that require EB-frame breakers.
• It is commonly used in facilities where original panelboard configurations must be maintained to ensure proper fit and electrical compatibility.
• Typical environments include:
  • Commercial buildings with pre-1989 electrical distribution panels
  • Industrial facilities maintaining legacy switchgear or panelboards
  • Institutional buildings such as schools or municipal facilities
  • Maintenance operations requiring form-fit-function replacements in existing electrical systems
• Because the EB3020 matches the physical configuration and electrical ratings of the original EB-frame design, it supports continued operation of compatible equipment while maintaining proper circuit protection.