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Siemens HED42B030L Molded Case Circuit Breaker
- 30A
- 2 Pole
- Unit Mount
Siemens
HED42B030L
Molded Case Circuit Breaker
Brand
Siemens
SKU
HED42B030L
Quantity
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Siemens HED42B030L - 30A 2 Pole Molded Case Circuit Breaker
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Description
Utilizing a versatile unit-mount configuration, this 30-amp MCCB provides essential thermal-magnetic protection for commercial power distribution. Unlike standard bolt-on models, this version includes line and load lugs for installation into standalone enclosures. The 3VA5130-6ED26-0AA0 is its modern equivalent. The breaker achieves a 100kAIC rating at 240VAC and 42kAIC at 480VAC. It features a non-interchangeable trip unit and carries an HACR certification.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HED42B030L |
| Series | HED4 |
| Amperage | 30A |
| 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 | 10-1/0 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, Alarm Switch, Undervoltage Release, Lug Kits |
|---|---|
| Accessories | Line and Load Side Lugs |
| 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, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
7 answersWhat types of equipment are compatible with the HED42B030L breaker?
This Sentron ED-frame breaker is designed for unit-mount installations in Siemens switchboards, motor control centers, and individual enclosures. It is not compatible with standard residential load centers that require plug-on breakers.
What wire gauge is supported by the standard lugs on this 30A breaker?
The factory-installed lugs accept 10 AWG to 1/0 AWG copper or aluminum wire. Ensure connections are torqued to the specifications listed on the breaker label during installation.
Does the HED42B030L support DC voltage applications?
Yes, in addition to its 480V AC rating, this thermal magnetic breaker is rated for 250V DC applications with an interrupting capacity of 30kAIC.
Can the trip curve be adjusted on the HED42B030L?
No, this breaker features a fixed thermal and fixed magnetic trip unit. It provides standard long-time and instantaneous (LI) protection without adjustable dials.
How is the HED42B030L mounted inside a panel?
It is a unit-mount, feed-thru circuit breaker. It bolts directly to the chassis or mounting pan using standard ED-frame mounting hardware, rather than snapping onto a bus bar.
Does the HED42B030L replace older ITE ED-frame breakers?
Yes, Siemens Sentron ED-frame breakers are direct replacements for legacy ITE E-frame and ED-frame breakers of the same physical size and configuration. Always verify the required interrupting capacity before replacing an older unit.
Is it safe to install this breaker in a non-Siemens switchboard?
You should only install this breaker in Siemens or legacy ITE equipment specifically listed for Sentron ED-frame breakers. Using it in unapproved panels violates UL listings and creates a severe fire hazard.
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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.