Part of the Sentron 3VA5 series, this 80-amp, two-pole molded case circuit breaker provides reliable long-time and instantaneous (LI) protection for commercial and industrial facilities. The unit mounts into Siemens P1, P2, and P3 panelboards when equipped with the appropriate mounting adapter. It serves as a modern, current-limiting replacement for discontinued ED42B080 breakers. Featuring a Class M breaking capacity of 35kA at 480VAC, this HACR-rated device includes standard nut keepers.
Which panelboards are compatible with the 3VA5180-5ED21-0AA0 circuit breaker?
This breaker is designed for use in Siemens 3VA panelboards and switchboards. It can also be installed in legacy Siemens P1, P2, and P3 panelboards when equipped with the correct mounting adapter.
What is the frame size for the Siemens 3VA5180-5ED21-0AA0?
This 80A breaker is built on the Siemens 3VA51 frame, which has a maximum continuous current capacity of 125A.
What breaking capacity class does this breaker fall under?
The 3VA5180-5ED21-0AA0 is a Class M (Medium) breaking capacity circuit breaker, providing a 35kA interrupting rating at 480V.
Can the trip settings be adjusted on this breaker?
No, the 3VA5180-5ED21-0AA0 features a TM210 thermal magnetic trip unit with fixed long-time (thermal) and fixed instantaneous (magnetic) trip settings.
Can the 3VA5180-5ED21-0AA0 replace older Siemens ED frame breakers?
Yes, the 3VA5 series serves as a modern replacement for discontinued 80A, 2-pole ED frame breakers like the ED42B080. Note that a specific mounting adapter is required when retrofitting into existing P-series panelboards.
What wire size do the standard lugs on the 3VA51 frame accept?
Standard aluminum lugs for the 125A 3VA51 frame typically accept wire sizes ranging from 14 AWG to 3/0 AWG for both copper and aluminum conductors.
Is the 3VA5180-5ED21-0AA0 suitable for HVAC applications?
Yes, this breaker is HACR rated, meaning it is tested and approved for use with heating, air conditioning, and refrigeration equipment.
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Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.