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Siemens NEB2B025B Molded Case Circuit Breaker
- 25A
- 2 Pole
- Bolt-On
Siemens
NEB2B025B
Molded Case Circuit Breaker
Brand
Siemens
SKU
NEB2B025B
Quantity
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Siemens NEB2B025B - 25A 2 Pole Molded Case Circuit Breaker
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Description
Designed to fit Siemens P1, P2, and P3 panelboards, the NEB2B025B is a 2-pole, 25A bolt-on molded case circuit breaker. It delivers reliable thermal-magnetic protection for industrial and commercial electrical systems. This SENTRON family breaker is a direct predecessor to the 3VA4125-5ED24-0AA0 replacement model. It comes equipped with load side lugs and provides high-capacity interruption ratings, including 85kAIC at 240VAC and 35kAIC at 480VAC, ensuring robust fault clearing capabilities.Specifications
| Brand | Siemens |
|---|---|
| Part Number | NEB2B025B |
| Series | NEB |
| Amperage | 25A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 85kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600Y/347VAC, 35kA @ 250VDC |
| Frame Type | NEB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
5 answersWhich Siemens panelboards accept the NEB2B025B circuit breaker?
The NEB2B025B is a bolt-on molded case circuit breaker engineered specifically for installation in Siemens P1, P2, and P3 panelboards.
What is the difference between Siemens NEB and HEB circuit breakers?
The primary difference is their short-circuit interrupting rating. The NEB series provides standard interrupting capacity (35kAIC at 480VAC), whereas the HEB series offers high interrupting capacity (65kAIC at 480VAC). Both frames share the exact same physical dimensions and panelboard compatibility.
What are the lug wire range and material specifications for the NEB2B025B?
The breaker includes factory-installed load-side lugs that accommodate 14 AWG to 1/0 AWG conductors. These lugs are dual-rated for both copper (Cu) and aluminum (Al) wire, providing flexibility for various feeder or branch circuit installations.
Does the NEB2B025B feature an interchangeable trip unit?
No, this breaker is equipped with a fixed, non-interchangeable thermal-magnetic trip unit. If a different amperage rating or trip characteristic is required for your application, the entire circuit breaker must be replaced.
Can the NEB2B025B be utilized in 250VDC applications?
Yes, in addition to its AC voltage ratings, this breaker is fully rated for direct current systems up to 250VDC with a 35kAIC interrupting rating. This makes it suitable for specific industrial DC control panels or battery backup circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 3 reviews.
Total 5 star reviews: 3 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
3 reviews
- JLJeremy L.ReviewingSiemens NEB3B125B - 125A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/17/18The right product with great
The right product with great packaging and shipping
- JLJeremy L.ReviewingSiemens NEB3B030B - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/26/17Great breaker. Best price and
Great breaker. Best price and fast service
- DBDan B.ReviewingSiemens NEB3B035B - 35A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/26/17Siemens NEB
Customer is happy.