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Siemens HED43B020 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Siemens
HED43B020
Molded Case Circuit Breaker
Brand
Siemens
SKU
HED43B020
Quantity
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Siemens HED43B020 - 20A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens HED43B020 - 20A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HED43B020 |
| Series | HED4 |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 42kA @ 480VAC, 30kA @ 250VDC |
| Frame Type | HED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards |
| 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 | Load Side Lug (SA1E025) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CSA, HACR, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
Quantity
Siemens HED43B020 - 20A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HED43B020-R |
| Series | HED4 |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 42kA @ 480VAC, 30kA @ 250VDC |
| Frame Type | HED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards |
| 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 | Load Side Lug (SA1E025) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CSA, HACR, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
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Description
Built for commercial power distribution, the Siemens HED43B020 is a 20A, 3-pole molded case circuit breaker. As part of the Sentron ED frame family, it provides dependable thermal-magnetic protection. This bolt-on MCCB is engineered to fit into Siemens P1, P2, and P3 panelboards. It comes equipped with load-side lugs and is replaced by the 3VA5120-6EC31-0AA0. Delivering a 42kAIC rating at 480VAC, this HACR-rated breaker is suitable for reverse feed applications.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HED43B020 |
| Series | HED4 |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 42kA @ 480VAC, 30kA @ 250VDC |
| Frame Type | HED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards |
| 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 | Load Side Lug (SA1E025) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CSA, HACR, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersCan this breaker replace an older ITE HED43B020?
Yes, Siemens acquired the ITE brand. A modern Siemens HED43B020 is the direct factory replacement for a legacy ITE breaker of the exact same catalog number.
What is the difference between an ED4 and an HED4 circuit breaker?
The H in HED4 stands for high interrupting capacity. While a standard ED4 frame provides standard fault current protection, the HED43B020 is rated for 42 kAIC at 480VAC to handle higher available fault currents in heavy commercial environments.
Which wire sizes and load lugs are required for this 20-amp ED frame breaker?
The breaker accepts 14 to 10 AWG copper wire or 12 to 10 AWG aluminum wire. If field-installing line side lugs or replacing load lugs for a 15 to 25 amp HED4 frame, the SA1E025 lug kit is typically required.
How does the LI trip function operate on this thermal magnetic breaker?
The LI designation means the trip unit uses fixed Long-Time and fixed Instantaneous elements. The thermal Long-Time element protects against sustained overloads, while the magnetic Instantaneous element trips the breaker immediately during a short circuit.
Which Siemens panelboards will accept this bolt-on unit?
This ED frame breaker is specifically designed for bolt-on phase connections in Siemens Sentron P1, P2, and P3 panelboards, as well as compatible Siemens switchboards.
Are line and load lugs both included with the HED43B020?
By default, Siemens Sentron ED frame breakers are supplied with load side lugs only. Line side lugs are not included because standard panelboard mounting utilizes the bolt-on phase connection, but line lugs can be added in the field for individual enclosure mounting.
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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.