Built for commercial and industrial applications, the Siemens 3VA5270-5ED31-0AA0 is a 3-pole, 70A circuit breaker built on the 250A 3VA52 frame. It delivers consistent line protection for heavy-duty systems. This unit mounts into Siemens 3VA panelboards and enclosures. With the appropriate adapter, it can also replace legacy FD63B070 breakers. The Class M breaker provides a 35kAIC rating at 480V. It is equipped with a TM210 trip unit, featuring fixed thermal and fixed magnetic protection.
Can the 3VA5270-5ED31-0AA0 replace older Siemens FD-frame breakers?
Yes. With the appropriate Siemens adapter kit, this 3VA52 frame breaker can replace legacy 70A FD-frame breakers, such as the FD63B070, in existing systems.
What is the maximum frame size for the 3VA5270-5ED31-0AA0?
While this specific breaker is factory-rated for 70A, it is built on the Siemens 3VA52 frame, which supports a maximum continuous current of 250A.
What breaking capacity class does the 3VA5270-5ED31-0AA0 belong to?
This unit is a Class M breaker. In the Siemens 3VA nomenclature, Class M designates a medium breaking capacity, delivering a 35kA interrupting rating at 480V.
Are the thermal and magnetic trip settings adjustable on this breaker?
No. This breaker is equipped with a Siemens TM210 thermal-magnetic trip unit. It provides LI (Long-Time and Instantaneous) protection with fixed thermal and fixed magnetic settings that cannot be field-adjusted.
Which panelboards are compatible with the 3VA5270-5ED31-0AA0?
This breaker is designed for direct installation into Siemens 3VA panelboards, switchboards, and compatible industrial enclosures.
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Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.