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Siemens HED41B040L Molded Case Circuit Breaker
- 40A
- 1 Pole
- Unit Mount
Siemens
HED41B040L
Molded Case Circuit Breaker
Brand
Siemens
SKU
HED41B040L
Quantity
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Siemens HED41B040L - 40A 1 Pole Molded Case Circuit Breaker
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Description
Designed for standalone applications, the Siemens HED41B040L is a 1-pole, 40A unit-mount molded case circuit breaker. Part of the Sentron ED-Frame family, it provides reliable thermal-magnetic protection for commercial and industrial systems. Featuring a unit-mount design with included line and load lugs, it installs easily into enclosures and switchboards. With an impressive 100kAIC at 120VAC and 25kAIC at 277VAC, this HACR-rated breaker includes a non-interchangeable trip and reverse feed.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HED41B040L |
| Series | HED4 |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 120VAC, 240VAC, 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 120VAC, 25kA @ 240VAC, 25kA @ 277VAC, 30kA @ 125VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Enclosures, Switchboards |
| Wire Gauge | 10 AWG - 1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 AWG |
| 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 (LN1E100) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
5 answersWhat does the "L" suffix mean in the HED41B040L catalog number?
The "L" indicates that the breaker is factory-assembled and ships with both line and load side lugs installed.
Where is the HED41B040L typically installed?
As a unit mount, feed-thru circuit breaker, it is designed to be bolted directly into compatible Siemens switchboards and industrial enclosures rather than snapping into standard residential load centers.
Are the terminals on the HED41B040L rated for aluminum wire?
Yes, the factory-installed lugs are dual-rated for both copper and aluminum conductors, accepting wire sizes from 10 AWG up to 1/0 AWG.
Is this breaker approved for direct current systems?
Yes, it is rated for DC applications up to 125VDC, providing a 30kAIC interrupting rating for direct current circuits.
Is the HED41B040L circuit breaker HACR rated?
Yes, this Sentron ED frame breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.
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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.