EJB34050 SQUARE D 3P 50A 480V

MCCB · 50A · 3-Pole · 480V · Bolt-On

The EJB34050 Square D 3P 50A 480V circuit breaker offers reliable protection for your electrical systems. Designed for three-phase applications, this breaker provides a maximum current rating of 50 amps and operates efficiently at 480 volts. Ideal for industrial and commercial use, it ensures safety and durability in demanding environments.

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Specifications
BrandSquare D
TypeMolded-Case (MCCB)
Amperage50 A
Poles3-Pole
Voltage480V
Interrupting Rating65 kA
MountingBolt-On
Frame / SeriesEJB
Catalogue #EJB34050 SQUARE D 3P 50A 480V
Panel & Switchboard Compatibility

The Square D EJB34050 is a 3-pole, 50A, 480V, 65kAIC bolt-on MCCB from Square D's EJB frame series. As a molded-case circuit breaker rated for industrial and commercial voltages, it is designed to mount in compatible Square D panelboards and switchboards that accept EJB-frame bolt-on breakers — not residential loadcentres. It is well-suited for three-phase branch and feeder circuit protection in demanding industrial and commercial environments.

Panel and switchboard compatibility depends on your specific enclosure's bus configuration and frame acceptance. Send us your panelboard or switchboard model and we'll confirm the right fit.

The EJB34050 is an EJB-frame bolt-on MCCB intended for Square D industrial and commercial panelboards and switchboards that accept EJB-frame breakers. It is not designed for residential QO or Homeline loadcentres. Because compatibility depends on your specific enclosure's bus and frame specs, we recommend sending us your panelboard model so we can confirm the fit before you order.

The EJB34050 carries a 65kAIC interrupting rating at 480V, making it suitable for use on higher-fault-current industrial and commercial systems. Always verify that the breaker's interrupting rating meets or exceeds the available fault current at the point of installation, as required by the Canadian Electrical Code (CEC).

Availability of the EJB frame series can vary. Northern Breaker Group specializes in obsolete and hard-to-find breakers, so even if the EJB34050 has been discontinued or is difficult to source through standard channels, we can often locate new, reconditioned, or surplus stock. Contact our Calgary, Edmonton, or Vancouver counter for a quote and current availability.

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