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Siemens EH3B080 Molded Case Circuit Breaker
- 80A
- 3 Pole
- Bolt-On
Siemens
EH3B080
Molded Case Circuit Breaker
Brand
Siemens
SKU
EH3B080
Quantity
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Siemens EH3B080 - 80A 3 Pole Molded Case Circuit Breaker
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Description
Designed to handle demanding industrial loads, this 80A molded case circuit breaker delivers reliable long-time and instantaneous overcurrent protection. The three-phase EH frame unit features a non-interchangeable trip mechanism. It mounts securely into Siemens P1, P2, and P3 panelboards, while maintaining compatibility with older ITE load centers. The ED43B080 serves as the substitute for this model. With a 14kA rating at 480VAC, this breaker is fully HACR rated for HVAC equipment.Specifications
| Brand | Siemens |
|---|---|
| Part Number | EH3B080-R |
| Series | EH |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards, ITE Panelboards |
| 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
5 answersCan I use the EH3B080 to replace an older ITE circuit breaker?
Yes, this breaker is fully compatible with older legacy ITE panelboards, as well as modern Siemens P1, P2, and P3 panelboards designed for E frame bolt-on breakers.
What is the recommended modern replacement for the legacy EH3B080?
The Siemens ED43B080 is the standard modern substitute for this legacy EH frame breaker, providing equivalent physical dimensions and mounting compatibility.
Does this breaker include lugs for both the line and load sides?
No, this is a bolt-on breaker intended to bolt directly to the panelboard bus on the line side. It includes lug terminals strictly for the load side, which accept 10 to 1/0 AWG copper or aluminum wire.
Can the thermal or magnetic trip settings on this breaker be adjusted in the field?
No, the EH3B080 features a fixed thermal magnetic trip unit. The long-time and instantaneous (LI) overcurrent protection settings are non-interchangeable and factory calibrated.
Is EH3-B080 the same circuit breaker as EH3B080?
Yes, EH3-B080 is simply an alternate catalog number format used for the identical Siemens 80-amp, 3-pole breaker.
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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!!!