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Siemens HED42B020L Molded Case Circuit Breaker
- 20A
- 2 Pole
- Unit Mount
Siemens
HED42B020L
Molded Case Circuit Breaker
Brand
Siemens
SKU
HED42B020L
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Siemens HED42B020L - 20A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for industrial applications, the Siemens HED42B020L is a 2-pole, 20A molded case circuit breaker from the Sentron ED frame family. This unit-mount breaker installs into Siemens enclosures, switchboards, and motor control centers. It includes line and load lugs and is replaced by the 3VA5120-6ED21-6AA0. Rated for 42kAIC at 480VAC, it offers high interrupting capacity and is HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HED42B020L |
| Series | HED4 |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 42kA @ 480VAC, 30kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Enclosures, Switchboards, Motor Control Centers |
| 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs (SA1E025) |
| 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, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip, Current Limiting |
Product FAQs
4 answersCan the Siemens HED42B020L replace an older I-T-E breaker with the same catalog number?
Yes. Siemens acquired I-T-E and maintained the Sentron ED frame catalog numbering. The Siemens HED42B020L is a direct replacement for the legacy I-T-E HED42B020L.
What does the L suffix in the HED42B020L catalog number indicate?
The L suffix indicates that the circuit breaker is shipped from the factory with both line and load lugs installed, rather than requiring them to be ordered and installed separately.
How does the HED4 series differ from the standard ED4 series?
The HED4 series is the high interrupting capacity version of the Sentron ED frame. The HED42B020L provides a 42kAIC rating at 480VAC, whereas standard ED4 breakers offer a lower interrupting capacity for standard applications.
Can I swap or upgrade the trip unit on the HED42B020L?
No. Siemens Sentron ED frame circuit breakers, including the HED42B020L, feature a fixed, non-interchangeable thermal magnetic trip unit. The entire breaker must be replaced if a different trip curve or amperage is required.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 13 reviews.
Total 5 star reviews: 13 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
13 reviews
- PMPete M.Verified BuyerReviewingSiemens HED43B060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/19/26Good price - Best website
Awesome price on an item. easy to use website made finding the right breaker and purchasing it super easy
- BCBrad C.Verified BuyerReviewingSiemens HED43B070 - 70A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/12/26Thank You
The breaker works perfectly, but I'm more impressed by the fast, prompt delivery. Will be using you again, thank you.
- MLMichael L.Verified BuyerReviewingSiemens HED43B020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/15/26Siemens breaker
Return customer, always great service and quick delivery. A+++
- JMJonathan M.Verified BuyerReviewingSiemens HED43B030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/10/26Breaker
Fast Delivery, just what I ordered !!
- RFRussell F.Verified BuyerReviewingSiemens HED41B040 - 40A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/6/26Just what I ordered
Straight forward, simple process. On time delivery.