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Siemens HED43B025 Molded Case Circuit Breaker
- 25A
- 3 Pole
- Bolt-On
Siemens
HED43B025
Molded Case Circuit Breaker
Brand
Siemens
SKU
HED43B025
Quantity
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Siemens HED43B025 - 25A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens HED43B025 - 25A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HED43B025 |
| Series | HED4 |
| Amperage | 25A |
| 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, SB 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, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| 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, Trip-Free Mechanism, Quick-Make/Quick-Break |
Quantity
Siemens HED43B025 - 25A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HED43B025-R |
| Series | HED4 |
| Amperage | 25A |
| 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, SB 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, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| 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, Trip-Free Mechanism, Quick-Make/Quick-Break |
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Description
Operating as a core component in commercial distribution, the Siemens HED43B025 is a 3-pole, 25A MCCB. It utilizes a quick-make/quick-break thermal-magnetic mechanism for precise long-time and instantaneous (LI) protection. This bolt-on breaker mounts into Siemens P1, P2, and P3 panelboards or SB switchboards. For panel upgrades, it is replaced by the 3VA5125-6EC31-0AA0, which requires a retrofit kit. With a robust 42kAIC rating at 480V, it handles high fault currents and is HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HED43B025 |
| Series | HED4 |
| Amperage | 25A |
| 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, SB 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, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| 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, Trip-Free Mechanism, Quick-Make/Quick-Break |
Product FAQs
6 answersWhat is the difference between the Siemens HED43B025 and the ED43B025?
Both are 25A, 3-pole ED frame circuit breakers, but they have different interrupting ratings. The HED43B025 is the high-interrupting version rated at 42kAIC at 480VAC, while the standard ED43B025 is rated at 18kAIC at 480VAC.
Which panelboards are compatible with the HED43B025 circuit breaker?
This breaker is designed for use in Siemens P1, P2, and P3 panelboards, as well as SB switchboards. It features a bolt-on connection that mounts directly to the panel bus for branch circuit applications.
Does the HED43B025 require a mounting kit for installation?
When installed as a standard branch breaker in P1, P2, or P3 panelboards, it bolts directly to the bus without a kit. However, if you are installing it as a main or subfeed breaker, a separate mounting hardware kit, such as the MBKED3 for 3-phase applications, is required.
Can the Siemens HED43B025 be reverse fed?
Yes. Standard Siemens ED frame thermal magnetic circuit breakers, including the HED43B025, do not have line and load restrictions and can be reverse fed for back-fed main applications.
Can the HED43B025 be used in DC applications?
Yes, it carries a 250VDC rating with a 30kAIC interrupting capacity. When used in DC systems, Siemens requires specific pole wiring configurations depending on the system voltage.
Is the trip unit on the HED43B025 adjustable?
No, this breaker features a fixed thermal and fixed magnetic trip unit. It provides long-time and instantaneous (LI) protection functions that cannot be adjusted in the field.
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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.