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Siemens ED43M020 - 20A 3 Pole Molded Case Circuit Breaker

Brand Siemens
SKU ED43M020

Siemens ED43M020 - 20A 3 Pole Molded Case Circuit Breaker

Brand Siemens
SKU ED43M020
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Siemens ED43M020 - 20A 3 Pole Molded Case Circuit Breaker

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$742.40 In stock

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DescriptionSpecificationsSuperClubWarranties
Description
Calibrated for 50°C ambient environments, the Siemens ED43M020 is a 3-pole, 20A MCCB built for demanding industrial conditions. It features thermal-magnetic technology for fixed LI protection. This bolt-on breaker mounts into Siemens Sentron panelboards, switchboards, and motor control centers. It serves as a high-temperature alternative to the standard 40°C ED43B020. Rated 18 kAIC at 480VAC, it provides reliable short-circuit mitigation. The unit is HACR rated and reverse feed capable.

Specifications

Brand Siemens
Series ED4
Amperage 20A
Voltage 240VAC, 480VAC, 250VDC
Poles 3
Phase 3
AIC Rating 65kA @ 240VAC, 18kA @ 480VAC, 30kA @ 250VDC
Mounting Style Bolt-On
Terminal Type Lugs
For Use With Siemens Sentron Panelboards, Switchboards, Motor Control Centers
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Wire Gauge 14-10 AWG (Cu), 12-10 AWG (Al)
Max Wire 10 AWG
Min Wire 14 AWG (Cu), 12 AWG (Al)
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Load Lugs
Standards CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, UL
Temp Rating 50C
Construction Features 50C Ambient Calibration, HACR Rated, Reverse Feed

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Warranties

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International Shipping

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4.9
Rated 4.9 out of 5 stars
Based on 16 reviews
Total 5 star reviews: 15 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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16 reviews
  • 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.

    Was this helpful?
  • JB
    John B.
    Verified Buyer
    Reviewing
    Siemens ED43B080 - 80A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/11/26
    Super Fast Shipping! Great Service

    I am very happy with the service I received from Super Breakers, they had what I needed in stock, and shipped out really quickly. I received my order within 2 days of placing the order!

    Was this helpful?
  • SK
    Steve K.
    Verified Buyer
    Reviewing
    Siemens ED43B020 - 20A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/16/26
    Breaker

    Fast shipping, worked great

    Was this helpful?
  • RM
    Rick M.
    Verified Buyer
    Reviewing
    Siemens ED43B020 - 20A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/5/26
    Breaker Review

    Very good equipment and was in great condition.

    Also does SuperBreakers purchase any new in box breakers?

    Was this helpful?
  • CD
    Carlos D.
    Flag of United States
    Verified Buyer
    Reviewing
    Siemens ED43B040 - 40A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    6/30/25
    Siemens ED43B040 3 Pole Circuit Breaker.

    I initially purchased two Siemens ED43B040 3-pole circuit breakers. One of the breakers wouldn’t engage properly, so I returned it. The return process was smooth, and a replacement breaker was delivered overnight. It’s always a pleasure doing business with Super Breaker.

    Was this helpful?

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