Engineered for legacy commercial applications, the Siemens EE2B040 is a 2-pole, 40-amp molded case circuit breaker. It features a thermal-magnetic trip unit with fixed long-time and instantaneous functions for reliable performance. This bolt-on breaker mounts into older Siemens FC, FE, CDP, P2, and P3 panelboards. For modern upgrades, this unit is superseded by the ED22B040 and ED42B040 models. Rated for 10kAIC at 240VAC, it provides essential short-circuit protection for aging systems.
Which panelboards accept the Siemens EE2B040 circuit breaker?
This E Frame breaker is designed to bolt directly into Siemens FC, FE, CDP, P2, and P3 panelboards.
Are there direct modern replacements for the legacy EE2B040?
Yes, for modern panel upgrades, this legacy EE Frame breaker is superseded by the Siemens ED22B040 and ED42B040 models.
What wire sizes are supported by the terminals on this breaker?
The lugs accommodate copper or aluminum conductors ranging from 14 AWG to 1/0 AWG. Always verify proper torque values based on the specific wire gauge used.
What protection functions are included in the thermal magnetic trip unit?
The breaker includes fixed long-time and instantaneous (LI) trip functions, providing standard overload and short-circuit protection for 240V systems.
Can this breaker be used in systems requiring a high interrupting capacity?
The EE2B040 is rated for a maximum of 10kAIC at 240VAC. It should only be installed in systems where the available fault current does not exceed this threshold.
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Customers rate this product 5.0 out of 5 based on 2 reviews.