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Siemens NEB2B100B Molded Case Circuit Breaker
- 100A
- 2 Pole
- Bolt-On
Siemens
NEB2B100B
Molded Case Circuit Breaker
Brand
Siemens
SKU
NEB2B100B
Quantity
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Siemens NEB2B100B - 100A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for heavy-duty power distribution, the Siemens NEB2B100B is a 2-pole, 100A molded case circuit breaker. It operates within the SENTRON family, offering reliable long-time and instantaneous protection. This unit bolts into Siemens P1, P2, P3, P4, and P5 panelboards. If migrating to current-generation hardware, it is replaced by the 3VA5110-5ED21-0AA0. Delivering an 85 kAIC rating at 240VAC and 35 kAIC at 480VAC, it is equipped with a trip-free mechanism and reverse feed capability.Specifications
| Brand | Siemens |
|---|---|
| Part Number | NEB2B100B |
| Series | NEB |
| Amperage | 100A |
| 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, P4, P5 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, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism |
Product FAQs
6 answersWhich panelboards are compatible with the Siemens NEB2B100B circuit breaker?
This breaker bolts directly into Siemens P1, P2, P3, P4, and P5 panelboards. For installation in legacy panels like FC1, FCII, CDP-5, CDP-6, SB1-3, or S5, a separate mounting hardware kit such as the NEB65K is required.
Are the load-side lugs included with the NEB2B100B, and what wire sizes do they accept?
Yes, the breaker comes with load-side lugs installed that accept 14 AWG to 1/0 AWG copper or aluminum (Cu/Al) conductors.
Can the NEB2B100B be used in DC electrical systems?
Yes, this breaker is rated for use in DC applications up to 250VDC, providing an interrupting capacity of 35kAIC.
What is the current-generation replacement for the NEB2B100B?
For modernizations, Siemens has replaced the NEB2B100B with the 3VA5110-5ED21-0AA0 molded case circuit breaker.
Does the NEB2B100B support reverse feeding?
Yes, this breaker is reverse-feed capable, allowing it to be back-fed in applications where the power source is connected to the load terminals.
Is there a higher interrupting capacity version of this breaker available?
Yes, the HEB frame (such as the HEB2B100B) shares the same physical dimensions but offers a higher interrupting capacity of 65kAIC at 480VAC compared to the standard NEB frame.
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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.