Serving as a critical safety component, this 40A single-pole unit protects commercial electrical distribution systems. The ED4 frame construction houses a fixed thermal-magnetic trip element for reliable LI protection. Installation requires bolting the device into Siemens P1, P2, or P3 panelboards and switchboards. While this specific model is a legacy Sentron design, it has been officially superseded by the 3VA5140-4ED16-0AA0.
What panelboards are compatible with the ED41B040 circuit breaker?
This ED frame breaker is designed for use in Siemens P1, P2, and P3 panelboards, as well as compatible switchboards. It requires a bolt-on connection to the bus.
What wire sizes are accepted by the terminals on this breaker?
The factory lugs accept 10 AWG to 4 AWG wire. Both copper and aluminum conductors are supported.
Is the ED41B040 suitable for direct current applications?
Yes, alongside its standard AC ratings, this breaker is certified for direct current applications. It can be safely applied in systems up to 125VDC, where it provides a 30kA interrupting capacity.
How does the trip unit function on this Sentron breaker?
It utilizes a non-interchangeable thermal magnetic trip unit. The fixed thermal element provides long-time overload protection, while the fixed magnetic element handles instantaneous short-circuit protection.
What frame size does the ED41B040 belong to?
It is part of the Siemens Sentron ED frame family. This is a standard 125A maximum frame size, though this specific unit is factory calibrated for a 40A continuous load.
Has the ED41B040 been replaced by a newer Siemens model?
Yes, while the ED41B040 is a legacy Sentron design, it has been officially superseded by the newer Siemens 3VA5 series, specifically part number 3VA5140-4ED16-0AA0.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 20 reviews.
Siemens ED43B100 - 100A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
9/8/26
Siemens ED43B100 breeaker
Breaker arrived even earlier than expected. In great condition and very well packaged. Customer service was helpful and resolve all questions.
KL
Kristofer L.
Verified Buyer
Reviewing
Siemens ED43B015 - 15A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
9/1/26
Product delivered was perfect.
This was my first order with Super Breakers so you just don't know what you will get. My products came quickly and just as described. I was very pleased with my experience and will use them in the future.
SW
Scott W.
Verified Buyer
Reviewing
Siemens ED43S100A - 100A 3 Pole Molded Case Switch
I recommend this product
Rated 5 out of 5 stars
6/10/26
Great transaction
We received the breaker we needed in great shape and in a timely manner!
We will defiantly be ordering from Super breaker again.
KK
Kurt k.
Verified Buyer
Reviewing
Siemens ED43B080 - 80A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
5/18/26
Fast shipping
I needed the breaker quickly for a job. It arrived earlier than I expected which kept the job moving along.
MS
mark s.
Verified Buyer
Reviewing
Siemens ED41B020 - 20A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
3/16/26
Exactly what I ordered
I ordered 12 Siemens breakers. My order was exactly what I ordered, They came fast, and everything was in good shape. I will be using superbreakers in the future.