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Siemens ED43B025 Molded Case Circuit Breaker

  • 25A
  • 3 Pole
  • Bolt-On
Siemens ED43B025
Molded Case Circuit Breaker
Brand Siemens
SKU ED43B025
Select Item Condition
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  • 25A
  • 3 Pole
  • Bolt-On

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Siemens ED43B025 - 25A 3 Pole Molded Case Circuit Breaker

Siemens ED43B025 - 25A 3 Pole Molded Case Circuit Breaker

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$765.60 In Stock

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Description

Engineered for commercial and industrial applications, the Siemens ED43B025 is a 3-pole, 25A molded case circuit breaker from the Sentron ED4 frame family. It installs into Siemens P1, P2, and P3 panelboards and switchboards. This bolt-on MCCB features a thermal-magnetic trip unit and delivers an 18kAIC interrupt rating at 480VAC. It is HACR rated, reverse feed capable, and serves as a legacy replacement (superseded by 3VA5125-4ED31-0AA0 with a mounting kit).

Specifications

Key specifications
Brand Siemens
Part Number ED43B025
Series ED4
Amperage 25A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC, 480VAC, 250VDC
Phase 3
AIC Rating 65kA @ 240VAC, 18kA @ 480VAC, 30kA @ 250VDC
Fit and installation
Frame Type ED
Terminal Type Lugs
For Use With Siemens P1, P2, P3 Panelboards, Switchboards
Wire Gauge 14-10 AWG (Cu), 12-10 AWG (Al)
Max Wire 10 AWG
Min Wire 14 AWG (Cu), 12 AWG (Al)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Motor Operator, Rotary Handle
Accessories Load Lugs
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, HACR, IEC, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, Non-Interchangeable Trip

Product FAQs

6 answers
Which panelboards are compatible with the Siemens ED43B025 circuit breaker?

This 3-pole breaker is designed for installation in Siemens P1, P2, and P3 panelboards, as well as Siemens switchboards.

Can the Siemens ED43B025 replace an older ITE breaker with the same catalog number?

Yes, Siemens acquired ITE and continued manufacturing the Sentron ED frame. The Siemens ED43B025 serves as a direct replacement for the legacy ITE ED43B025.

Are load lugs included with this ED4 frame breaker?

Yes, this breaker comes standard with load lugs. The included lugs accept 14 to 10 AWG copper wire or 12 to 10 AWG aluminum wire.

Is the ED43B025 circuit breaker suitable for reverse feed applications?

Yes, all Siemens Sentron ED frame circuit breakers, including the ED43B025, are reverse feed capable.

Does this 25A breaker carry an HACR rating?

Yes, the ED43B025 is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment circuits.

Can this molded case circuit breaker be used in DC power systems?

Yes, the ED43B025 is rated for DC applications up to 250VDC, providing a direct current interrupting rating of 30kAIC.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 20 reviews
Rating
Ratings
20 reviews
  • GG
    Gerson G.
    Verified Buyer
    Reviewing
    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.