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Siemens HED43B025L Molded Case Circuit Breaker
- 25A
- 3 Pole
- Unit Mount
Siemens
HED43B025L
Molded Case Circuit Breaker
Brand
Siemens
SKU
HED43B025L
Quantity
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Siemens HED43B025L - 25A 3 Pole Molded Case Circuit Breaker
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Description
Built for industrial environments, the Siemens HED43B025L 3-pole, 25A MCCB operates within the Sentron ED Frame family. It provides fixed thermal and magnetic trip functions for dependable LI circuit protection. Unlike bolt-on variants, this breaker utilizes a unit mount configuration and includes both line and load lugs. It installs into standalone enclosures, switchboards, and motor control centers.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HED43B025L |
| Series | HED4 |
| Amperage | 25A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 42kA @ 480VAC, 30kA @ 250VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| 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
8 answersWhat type of enclosures or panels is the HED43B025L compatible with?
As a unit-mount, feed-thru circuit breaker, the HED43B025L is designed for standalone enclosures, switchboards, and motor control centers rather than standard load centers.
How does the HED43B025L mount into a system?
This breaker features a unit-mount, feed-thru configuration. It bolts directly to the mounting surface in switchboards or enclosures and uses line and load lugs for wire connections, rather than plugging onto a busbar.
What lug kit is used on the HED43B025L, and what wire does it accept?
It uses the SA1E025 lug kit on both the line and load sides, which accommodates 14 to 10 AWG copper or 12 to 10 AWG aluminum conductors.
Is the Siemens HED43B025L suitable for reverse feeding?
Yes, this breaker is reverse feed capable, meaning power can be supplied to either the line or load terminals without affecting its protective functions.
Can the HED43B025L be used for HVAC equipment?
Yes, it is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific certification.
Can I swap the trip unit on the HED43B025L for a different amperage?
No, this breaker has a non-interchangeable trip unit. The 25A thermal-magnetic trip mechanism is permanently fixed inside the ED frame and cannot be swapped.
What is the difference between the HED43B025L and the ED43B025L?
The primary difference is the interrupting capacity. The HED43B025L is a high-interrupting breaker rated for 42kAIC at 480V, while the standard ED43B025L is rated for 18kAIC at 480V.
Does the HED43B025L support padlocking devices for lockout procedures?
Yes, you can use Siemens ED frame padlocking accessories, such as the ED2HPL, to lock the breaker handle in the OFF position for safe maintenance.
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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.