EJB36020 SQUARE D 3P 20A 600V

MCCB · 20A · 3-Pole · 600V · Bolt-On

The EJB36020 SQUARE D 3P 20A 600V circuit breaker is designed to provide reliable protection for electrical systems. With three poles and a 20 amp rating, it supports voltages up to 600V, ensuring efficiency and safety. Ideal for various applications, this durable breaker meets industry standards for high performance.

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Specifications
BrandSquare D
TypeMolded-Case (MCCB)
Amperage20 A
Poles3-Pole
Voltage600V
Interrupting Rating25 kA
MountingBolt-On
Frame / SeriesEJB
Catalogue #EJB36020 SQUARE D 3P 20A 600V
Panel & Switchboard Compatibility

The Square D EJB36020 is a molded-case circuit breaker (MCCB) in Square D's EJB frame, rated 3-pole, 20 A, 600 V AC, 25 kA interrupting capacity, with a bolt-on mounting configuration. As an industrial-grade MCCB, it is designed for use in commercial and industrial panelboards and switchboards that accept EJB-frame bolt-on breakers — not residential loadcentres.

  • Mounting: Bolt-on; requires a compatible Square D panelboard or switchboard bus designed for the EJB frame
  • Typical use: Sub-feeder and branch-circuit protection in industrial panels, motor control centres, and distribution switchboards up to 600 V

Not sure if this breaker fits your specific panelboard or switchboard? Send us your panel model number and we'll confirm compatibility.

The EJB36020 carries a 25 kA interrupting rating at 600 V AC. This meets the short-circuit withstand requirements for many Canadian commercial and industrial installations under the Canadian Electrical Code (CEC). You should verify that the available fault current at your installation point does not exceed 25 kA — if it does, a higher-interrupting-capacity frame may be required. Our team can help you assess your needs.

The Square D EJB frame series is a legacy product line that can be difficult to source through standard distribution channels. Northern Breaker Group specialises in exactly this type of hard-to-find and obsolete breaker. Contact us for current stock availability — we serve customers across Canada from our Calgary, Edmonton, and Vancouver counters, and can assist with urgent replacement needs.

Yes. At 20 A / 3-pole / 600 V, the EJB36020 is well suited for protecting 3-phase motor branch circuits in industrial applications, subject to proper sizing per CEC rules for motor protection (typically the breaker must not exceed the values specified in Table 29 of the CEC for the motor's full-load current). Always confirm motor FLA and applicable code requirements before installation.

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