Built for commercial power distribution, the Siemens 3VA4140-4ED24-0AA0 is a 40A, 2-pole molded case circuit breaker from the SENTRON 3VA4 family. It features a TM210 thermal-magnetic trip unit with fixed long-time and instantaneous (LI) protection. This panel mount MCCB installs into Siemens P1, P2, and P3 panelboards. It serves as a modern upgrade and replaces legacy ED42B040 breakers with a mounting kit. Rated 25 kAIC at 480VAC, it includes load side lugs and reverse feed capability.
What panelboards are compatible with the 3VA4140-4ED24-0AA0?
This breaker is designed for use in Siemens P1, P2, and P3 commercial panelboards, as well as Siemens switchboards. It is not intended for standard residential load centers.
Can this breaker be used in DC circuits?
Yes, it is rated for use in DC applications up to 250V DC, providing an interrupting capacity of 50kA at that voltage.
What does the LI trip function indicate on this breaker?
The LI designation means the thermal magnetic trip unit provides Long Time (L) overload protection and Instantaneous (I) short circuit protection. Both the thermal and magnetic trip settings are fixed on this specific model.
What type of wire can be used with the factory lugs?
The included lugs accept both copper (Cu) and aluminum (Al) wire ranging from 14 AWG to 8 AWG.
How is the 3VA4140-4ED24-0AA0 mounted?
It is a panel mount breaker, meaning it bolts directly into the chassis of compatible commercial panelboards and switchboards rather than snapping onto a busbar like miniature residential breakers.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 5 reviews.
Siemens 3VA4160-4ED34-0AA0 - 60A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/27/26
SuperBreakers has you covered
SuperBreakers has you covered when you’re in a pinch and need breakers at the last minute. Their customer service is excellent, and the team consistently goes above and beyond to help. I highly recommend them!
RS
Rob S.
Verified Buyer
Reviewing
Siemens 3VA4150-6ED34-0AA0 - 50A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/8/26
50 amp breaker
Very helpful and arrived quickly.
JB
Josh B.
Verified Buyer
Reviewing
Siemens 3VA4130-4ED24-0AA0 - 30A 2 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
3/5/26
Breakers
Exactly as described. Quick shipping.
JL
Jeff L.
Verified Buyer
Reviewing
Siemens 3VA4120-6ED14-0AA0 - 20A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
2/11/26
Better than new
Great condition and fast shipping
KC
Ken C.
Verified Buyer
Reviewing
Siemens 3VA4150-4ED34-0AA0 - 50A 3 Pole Molded Case Circuit Breaker