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Siemens ED42B100 Molded Case Circuit Breaker

  • 100A
  • 2 Pole
  • Bolt-On
Siemens ED42B100
Molded Case Circuit Breaker
Brand Siemens
SKU ED42B100
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  • 100A
  • 2 Pole
  • Bolt-On

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ED42B100

Siemens ED42B100 - 100A 2 Pole Molded Case Circuit Breaker

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$211.12 In Stock

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Description

Built for demanding systems, the Siemens ED42B100 is a 2-pole, 100A molded case circuit breaker. It belongs to the Sentron ED frame series, delivering reliable LI protection. Featuring a bolt-on mounting style, it installs securely into Siemens Sentron panelboards and switchboards. The unit includes load side lugs for 10-1/0 AWG wire. This breaker provides 65kAIC at 240V and 18kAIC at 480V. It utilizes a trip-free mechanism, is HACR rated, and supports reverse feed applications.

Specifications

Key specifications
Brand Siemens
Part Number ED42B100-R
Series ED4
Amperage 100A
Poles 2
Mounting Style Bolt-On
Voltage 240VAC, 480VAC, 250VDC
Phase 1
AIC Rating 65kA @ 240VAC, 18kA @ 480VAC, 30kA @ 250VDC
Fit and installation
Frame Type ED
Terminal Type Lugs
For Use With Siemens Sentron Panelboards, Switchboards
Wire Gauge 10-1/0 AWG (Cu/Al)
Max Wire 1/0 AWG
Min Wire 10 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release
Accessories Load Side Lugs
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, HACR, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism

Product FAQs

8 answers
Which Siemens panelboards accept the ED42B100 circuit breaker?

This bolt-on ED-frame breaker is specifically designed for Siemens Sentron panelboards and switchboards. It is not compatible with standard residential load centers that require plug-on or QP-style breakers.

Is the ED42B100 suitable for DC circuits?

Yes, in addition to its AC ratings, this breaker is UL listed for DC applications up to 250VDC, providing a 30kA interrupting rating for direct current systems.

Do I need to purchase lugs separately for the ED42B100?

No, this breaker comes standard with load-side lugs installed. The factory lugs accept 10 AWG to 1/0 AWG copper or aluminum wire.

Can I adjust the trip settings on the Siemens ED42B100?

No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time (overload) and instantaneous (short-circuit) trip functions are factory-set and non-adjustable.

Are internal accessories like shunt trips compatible with the ED42B100?

Yes, Siemens ED-frame breakers support field-installable internal accessories. You can add shunt trips, auxiliary switches, or undervoltage releases designed for the Sentron ED frame.

What hardware is required to mount the ED42B100 in a panelboard?

As a bolt-on breaker, it requires specific breaker mounting kits (such as the SMBKED series) depending on your exact Sentron panelboard or switchboard model. Ensure you have the correct strap kit for a 2-pole ED-frame breaker.

Is the Siemens ED42B100 the same as the I-T-E ED42B100?

Yes, Siemens acquired I-T-E and continues to manufacture the ED42B100 under the Siemens Sentron brand. The Siemens ED42B100 is a direct, exact replacement for older I-T-E breakers with the same catalog number.

Where can I find the lug torque specifications for the ED42B100?

The required torque values for the load lugs are printed directly on the front label of the circuit breaker. Always use a calibrated torque wrench during installation to ensure a safe and secure connection.

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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.