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Siemens HED42B025L Molded Case Circuit Breaker
- 25A
- 2 Pole
- Unit Mount
Siemens
HED42B025L
Molded Case Circuit Breaker
Brand
Siemens
SKU
HED42B025L
Quantity
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Siemens HED42B025L - 25A 2 Pole Molded Case Circuit Breaker
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Description
Designed for demanding industrial environments, the Siemens HED42B025L is a 2-pole, 25A molded case circuit breaker. It belongs to the Sentron ED frame family, providing fixed thermal and magnetic trip functions. Utilizing a unit-mount design, this breaker installs into compatible enclosures, switchboards, and motor control centers. It comes equipped with line and load side lugs and is replaced by the 3VA5125-6EC21-0AA0. With a 42kAIC rating at 480VAC, it handles substantial fault currents.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HED42B025L |
| Series | HED4 |
| Amperage | 25A |
| 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 | 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 Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
7 answersWhat equipment is the Siemens HED42B025L compatible with?
This Sentron ED-frame breaker is designed for installation in Siemens switchboards, motor control centers, and individual enclosures configured for unit-mount breakers. It is not compatible with standard plug-on residential load centers.
How is the HED42B025L circuit breaker mounted?
This is a unit-mount, feed-thru circuit breaker. It is secured using mounting hardware within an enclosure or panel rather than plugging directly onto a busbar.
Are lugs included with the HED42B025L, and what wire sizes are supported?
Yes, this breaker includes factory-installed lugs. The terminals accept 14-10 AWG copper (Cu) or 12-10 AWG aluminum (Al) conductors.
Can the HED42B025L be used in direct current (DC) applications?
Yes, in addition to its AC ratings, this thermal-magnetic breaker is rated for 250V DC applications with an interrupting capacity of 30kAIC.
Does the HED42B025L have an adjustable trip setting?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous (LI) trip functions cannot be adjusted in the field.
Is the HED42B025L suitable for HVAC equipment?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific certification.
Can the Siemens HED42B025L be reverse fed?
Yes, Siemens ED-frame molded case circuit breakers can be reverse connected, allowing for flexible routing of line and load wiring.
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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.