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Siemens ED43B020L Circuit Breaker

  • 20A
  • 3 Pole
  • Panel Mount
Siemens ED43B020L
Circuit Breaker
Brand Siemens
SKU ED43B020L
Select Item Condition
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  • 20A
  • 3 Pole
  • Panel Mount

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Siemens ED43B020L 3 Pole Circuit Breaker

Siemens ED43B020L 3 Pole Circuit Breaker

Re-Certified

$324.98 In Stock

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Description

Siemens ED43B020L 3 Pole Circuit Breaker

The Siemens ED43B020L is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 20 Amps and a voltage rating of 480V. It has an interrupting rating of 18kAIC at 480V. The ED43B020L has a feed-thru connection type and includes long time and instantaneous trip functions.

Specifications

Key specifications
Brand Siemens
Series ED4
Amperage 20A
Poles 3
Mounting Style Panel Mount
Voltage 480VAC, 250VDC
Phase 3
AIC Rating 65kA @ 240VAC, 18kA @ 480VAC
Fit and installation
Frame Type ED
Terminal Type Lugs
For Use With ['Siemens Enclosures', 'Siemens Switchboards', 'Siemens Panelboards']
Wire Gauge 14-10 AWG
Max Wire 10 AWG
Min Wire 14 AWG
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
Standards NEMA
Approval CSA, IEC, UL
Temp Rating 40 °C

Product FAQs

6 answers
Does the ED43B020L include line and load lugs?

Yes, the L suffix in the catalog number indicates that this breaker comes factory-equipped with both line and load side lugs. These standard lugs accept 14 to 10 AWG copper wire or 12 to 10 AWG aluminum wire.

Can the Siemens ED43B020L be reverse connected?

Yes, Siemens ED frame molded case circuit breakers are suitable for reverse feed applications.

What are the physical dimensions of this ED frame breaker?

The 3-pole ED43B020L measures approximately 3.00 inches wide, 6.35 inches high, and 3.92 inches deep.

Is the thermal-magnetic trip unit on this breaker interchangeable?

No, the ED43B020L features a fixed, non-interchangeable thermal-magnetic trip unit.

How is the ED43B020L breaker mounted?

This is a feed-thru style molded case circuit breaker designed for individual mounting or installation within compatible Siemens enclosures, rather than plugging directly into a panelboard bus.

What type of fault protection does the ED43B020L provide?

It utilizes a thermal-magnetic trip mechanism to deliver both long-time delay for overload conditions and instantaneous tripping for short-circuit faults.

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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.