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Siemens ED43M030 Molded Case Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
Siemens
ED43M030
Molded Case Circuit Breaker
Brand
Siemens
SKU
ED43M030
Quantity
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Siemens ED43M030 - 30A 3 Pole Molded Case Circuit Breaker
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Description
Built for elevated temperatures, the Siemens ED43M030 is a 3-pole, 30A molded case circuit breaker providing reliable protection for commercial and marine systems. The bolt-on unit mounts into Siemens Sentron panelboards, switchboards, and motor control centers. Its rugged ED4 frame ensures long-lasting performance in demanding setups. Delivering 18kA at 480VAC, it features a 50°C ambient calibration. The breaker is HACR rated, supports reverse feeding, and includes load lugs.Specifications
| Brand | Siemens |
|---|---|
| Series | ED4 |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 18kA @ 480VAC, 30kA @ 250VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-10 AWG (Cu), 12-10 AWG (Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 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 | Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 50C |
| Construction Features | 50C Ambient Calibration, HACR Rated, Reverse Feed |
Product FAQs
8 answersCan I install the Siemens ED43M030 in an older ITE panelboard?
Yes. The ED43M030 is part of the legacy ITE and Siemens ED frame lineage. It serves as a direct bolt-on replacement for older ITE ED frame breakers and is fully compatible with Siemens Sentron panelboards, switchboards, and motor control centers.
What does the M in the ED43M030 catalog number signify?
The M indicates that this breaker features a 50 degree Celsius ambient temperature calibration. Standard breakers are typically calibrated for 40 degrees Celsius. This elevated temperature rating makes it suitable for demanding commercial and marine applications.
Can the ED43M030 be used in direct current systems?
Yes. While commonly used in 480VAC applications, this thermal magnetic breaker is also rated for 250VDC systems, providing a 30kAIC interrupting capacity for DC loads.
What type of wire is compatible with the load lugs on the ED43M030?
The factory-installed lugs accept both copper and aluminum conductors. For copper, the acceptable wire range is 14 to 10 AWG. For aluminum, the range is 12 to 10 AWG.
Are the trip settings on the ED43M030 adjustable?
No. This breaker is equipped with a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip functions are factory set and cannot be adjusted in the field.
Is the ED43M030 interchangeable with CED6 or other current-limiting ED frame breakers?
No. While they share the same ED frame family, standard ED4 breakers like the ED43M030 do not have the same interrupting capabilities or physical dimensions as current-limiting CED6 breakers. They cannot be used interchangeably unless explicitly permitted by the equipment listing.
Can the ED43M030 be reverse fed?
Yes. This breaker supports reverse feeding, allowing it to be wired with the line connections on either the top or bottom terminals depending on your panel layout.
Is the ED43M030 suitable for HVAC equipment?
Yes. This breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires HACR circuit protection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 20 reviews.
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Rating
20 reviews
- GGGerson G.Verified BuyerReviewingSiemens ED43B100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/8/26Siemens ED43B100 breeaker
Breaker arrived even earlier than expected. In great condition and very well packaged. Customer service was helpful and resolve all questions.
- KLKristofer L.Verified BuyerReviewingSiemens ED43B015 - 15A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/1/26Product delivered was perfect.
This was my first order with Super Breakers so you just don't know what you will get. My products came quickly and just as described. I was very pleased with my experience and will use them in the future.
- SWScott W.Verified BuyerReviewingSiemens ED43S100A - 100A 3 Pole Molded Case SwitchI recommend this productRated 5 out of 5 stars6/10/26Great transaction
We received the breaker we needed in great shape and in a timely manner!
We will defiantly be ordering from Super breaker again.
- KKKurt k.Verified BuyerReviewingSiemens ED43B080 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/18/26Fast shipping
I needed the breaker quickly for a job. It arrived earlier than I expected which kept the job moving along.
- MSmark s.Verified BuyerReviewingSiemens ED41B020 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/16/26Exactly what I ordered
I ordered 12 Siemens breakers. My order was exactly what I ordered, They came fast, and everything was in good shape. I will be using superbreakers in the future.