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Siemens EH3B030 Molded Case Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
Siemens
EH3B030
Molded Case Circuit Breaker
Brand
Siemens
SKU
EH3B030
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Siemens EH3B030 - 30A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for reliable commercial power management, this 30-amp, 3-pole Siemens EH3B030 molded case circuit breaker features a non-interchangeable thermal-magnetic trip unit. It mounts securely into Siemens P-series and classic ITE panelboards using a standard bolt-on configuration. For facilities maintaining legacy infrastructure, this E-Frame breaker provides an exact physical match, though it is succeeded by the ED43B030 series. It handles up to 18 kAIC at 240VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | EH3B030-R |
| Series | EH |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | EH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens / ITE Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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 Side Lugs Included |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
6 answersWhat panelboards are compatible with the Siemens EH3B030?
This bolt-on breaker is designed for legacy Siemens and ITE panelboards, including classic P-series enclosures and older ITE distribution panels.
What is the modern replacement for the EH3B030 circuit breaker?
For newer installations or panel upgrades, Siemens ED-frame breakers, such as the ED43B030 or ED63B030, serve as the direct substitute for the legacy EH frame.
Is the Siemens EH3B030 HACR rated?
Yes, this thermal magnetic breaker is HACR rated, making it suitable for overcurrent protection in heating, air conditioning, and refrigeration equipment circuits.
Can the EH3B030 breaker be reverse fed?
Yes. Because this E-frame breaker features a non-interchangeable trip unit and lacks restrictive line and load terminal markings, it is approved for reverse-feed applications.
What conductors are supported by the EH3B030 lugs?
The included load-side lugs accept 14 AWG to 1/0 AWG copper or aluminum wire. Ensure proper torque is applied during installation as specified on the breaker faceplate.
Will this breaker replace older ITE or Gould EH-frame breakers?
Yes. Siemens acquired the ITE and Gould circuit breaker lines. The Siemens EH3B030 is an exact physical and electrical match for legacy ITE and Gould breakers with the same catalog number.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 7 reviews.
Total 5 star reviews: 7 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
7 reviews
- TSThomas S.Verified BuyerReviewingSiemens EH3B020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/6/25Great
Thanks
- JMJim M.ReviewingSiemens EH3B040 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/24/23They fit perfectly and saved
They fit perfectly and saved us a lot of money by being able to replace just these breakers
- KHKen H.ReviewingSiemens EH3B030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/12/23Great service
Great service and products fast shipping
- JSJerry S.ReviewingSiemens / ITE EH3B070 - 70A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/20/22Great Price - Breakers Work Fine
My local Supplier was charging me three times the price for a breaker that i bought on super Breakers.
- MRMatt R.ReviewingSiemens EH3B020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/6/2020 Amp Breaker
Received item quickly and in great shape. Thank you!!!