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Siemens HEB2B050B Molded Case Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Siemens
HEB2B050B
Molded Case Circuit Breaker
Brand
Siemens
SKU
HEB2B050B
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Siemens HEB2B050B - 50A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial applications, the Siemens HEB2B050B delivers reliable thermal-magnetic protection as a 2-pole, 50A Sentron molded case circuit breaker. It features a bolt-on connection for Siemens P1, P2, and P3 panelboards. For modern upgrades, it is replaced by the 3VA4150-6ED24-0AA0 using a 3VA41 strap kit. Rated 65kAIC at 480VAC and 100kAIC at 240VAC, this HACR-rated breaker safely handles high fault currents and includes load side lugs.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HEB2B050B |
| Series | HEB |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 42kA @ 125/250VDC |
| Frame Type | HEB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (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 |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs (TA1EG10) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, High Interrupting Capacity |
Product FAQs
4 answersWhich panelboards accept the HEB2B050B circuit breaker?
This bolt-on breaker is designed for installation in Siemens P1, P2, and P3 panelboards. Depending on the specific panel configuration, it may require dedicated mounting hardware or strap kits.
What is the difference between Siemens NEB and HEB frame circuit breakers?
Both share the same physical dimensions and mount in the same panel spaces, but they differ in short-circuit interrupting capacity. The HEB series is the high-interrupting version, rated at 65kAIC at 480VAC, whereas the NEB series is the standard-interrupting version.
Is the HEB2B050B rated for use in DC circuits?
Yes, this thermal-magnetic breaker is dual-rated for AC and DC systems. It carries a DC interrupting rating of 42kAIC at 125/250VDC, making it suitable for direct current applications.
Can the HEB2B050B be reverse fed for backfeed applications?
Yes. This breaker features a fixed, non-interchangeable trip unit and does not have Line and Load terminal markings, making it suitable for reverse feed installations.
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Reviews
Review summary
Customers rate this product 4.0 out of 5 based on 1 review.
Total 5 star reviews: 0 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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1 review
- JJohnReviewingSiemens HEB3B015B - 15A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars9/19/234 Stars
Great service