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Siemens ED42B020L Molded Case Circuit Breaker
- 20A
- 2 Pole
- Unit Mount
Siemens
ED42B020L
Molded Case Circuit Breaker
Brand
Siemens
SKU
ED42B020L
Quantity
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Siemens ED42B020L - 20A 2 Pole Molded Case Circuit Breaker
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Description
Belonging to the Sentron ED-frame family, the Siemens ED42B020L is a 2-pole, 20A molded case circuit breaker. Built for commercial and industrial distribution, it provides reliable thermal-magnetic protection for systems up to 480VAC. This unit-mount breaker is designed for standalone installations, featuring both line and load lugs. It mounts easily into compatible Siemens enclosures. Delivering an 18kAIC rating at 480VAC, it is HACR rated and reverse-feed capable for versatile installations.Specifications
| Brand | Siemens |
|---|---|
| Part Number | ED42B020L |
| Series | ED4 |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 18kA @ 480VAC, 30kA @ 250VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Enclosures, Unit Mount |
| Wire Gauge | 14-10 AWG (Cu), 12-10 AWG (Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
7 answersWhat does the "L" at the end of the ED42B020L catalog number indicate?
The "L" suffix indicates that the breaker comes factory-assembled with both line and load side lugs included. The specific lug part number provided with this unit is SA1E025.
Is the Siemens ED42B020L suitable for reverse feed applications?
Yes, this thermal-magnetic ED frame circuit breaker is suitable for reverse feed applications. It can be back-fed in compatible control panels or enclosures.
Can this 2-pole breaker be used in DC systems?
Yes, the ED42B020L is rated for use in direct current applications up to 250VDC, providing a 30kA interrupting capacity. When applying it on a 250VDC system, Siemens recommends wiring one pole on each leg of the supply circuit.
Is this breaker HACR rated for HVAC equipment?
Yes, the ED42B020L carries an HACR rating, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific overcurrent protection.
How is the ED42B020L mounted?
This is a unit-mount, feed-thru circuit breaker designed for standalone installation in compatible Siemens enclosures or control panels. It does not plug or bolt directly into standard panelboard busbars.
What are the physical dimensions of this ED frame breaker?
The ED42B020L measures approximately 2 inches wide, 6.35 inches high, and 3.92 inches deep.
What industry standards does the ED42B020L comply with?
This breaker meets UL 489 and IEC 60947-2 standards for molded case circuit breakers, and is also CSA certified for use in commercial and industrial power distribution.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 20 reviews.
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Rating
20 reviews
- GGGerson G.Verified BuyerReviewingSiemens ED43B100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/8/26Siemens ED43B100 breeaker
Breaker arrived even earlier than expected. In great condition and very well packaged. Customer service was helpful and resolve all questions.
- KLKristofer L.Verified BuyerReviewingSiemens ED43B015 - 15A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/1/26Product 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.
- SWScott W.Verified BuyerReviewingSiemens ED43S100A - 100A 3 Pole Molded Case SwitchI recommend this productRated 5 out of 5 stars6/10/26Great transaction
We received the breaker we needed in great shape and in a timely manner!
We will defiantly be ordering from Super breaker again.
- KKKurt k.Verified BuyerReviewingSiemens ED43B080 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/18/26Fast shipping
I needed the breaker quickly for a job. It arrived earlier than I expected which kept the job moving along.
- MSmark s.Verified BuyerReviewingSiemens ED41B020 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/16/26Exactly 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.