Siemens EH2B050 Molded Case Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Quantity
Siemens EH2B050 - 50A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for commercial applications, the Siemens EH2B050 is a 50A, 2-pole molded case circuit breaker from the legacy EH Series. It provides dependable thermal-magnetic protection for electrical distribution systems. Mounting securely via a bolt-on configuration, it is compatible with Siemens and ITE Type E2, F2, and P1 panelboards. For modern upgrades, this breaker is replaced by the ED42B050 model. Rated at 14kAIC at 480VAC, it includes fixed thermal and magnetic trips.Specifications
| Brand | Siemens |
|---|---|
| Part Number | EH2B050 |
| Series | EH |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | EH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens / ITE Panelboards (Type E2, F2, P1) |
| 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 | HACR Rated, Non-Interchangeable Trip |
Product FAQs
5 answersWhat is the modern replacement for the legacy EH2B050 circuit breaker?
The EH2B050 is an obsolete EH frame breaker. The direct modern replacement from Siemens is the ED42B050, which shares the same physical footprint and mounting configuration for legacy panelboards.
Will the EH2B050 fit in standard Siemens residential load centers?
No, this is a bolt-on molded case circuit breaker designed for commercial and industrial distribution. It is specifically engineered for Siemens and legacy ITE Type E2, F2, and P1 panelboards.
Can the EH2B050 be utilized in DC power applications?
Yes, this breaker is rated for direct current applications up to 250VDC, providing a 10kA interrupting capacity for DC systems.
Does the EH2B050 feature adjustable trip settings for selective coordination?
No, the thermal magnetic trip unit on the EH2B050 is completely fixed. Both the thermal (overload) and magnetic (short-circuit) trip elements are factory set and cannot be adjusted in the field.
What does the LI trip function code indicate on this breaker?
The LI designation indicates that the breaker's thermal magnetic trip unit provides Long-Time (L) protection for sustained overloads and Instantaneous (I) protection for immediate short-circuit clearing.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 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!!!