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Siemens NEB3B045B Molded Case Circuit Breaker
- 45A
- 3 Pole
- Bolt-On
Siemens
NEB3B045B
Molded Case Circuit Breaker
Brand
Siemens
SKU
NEB3B045B
Quantity
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Siemens NEB3B045B - 45A 3 Pole Molded Case Circuit Breaker
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Siemens NEB3B045B - 45A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | NEB3B045B |
| Series | NEB |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 3 |
| 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 | 8-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 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, HID Rated, Reverse Feed, Non-Interchangeable Trip |
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Siemens NEB3B045B - 45A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | NEB |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 3 |
| 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 | 8-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 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, HID Rated, Reverse Feed, Non-Interchangeable Trip |
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Description
Built for industrial applications, the Siemens NEB3B045B is a 3-pole, 45A thermal-magnetic circuit breaker. It features a non-interchangeable trip unit with fixed long-time and instantaneous protection functions to safeguard commercial electrical systems. Designed for a secure fit, it mounts into Siemens P1, P2, and P3 panelboards via a bolt-on connection. If a replacement is needed, it crosses over to the 3VA4145-5ED34-0AA0 model. This HACR and HID rated breaker handles 35kAIC at 480V.Specifications
| Brand | Siemens |
|---|---|
| Part Number | NEB3B045B |
| Series | NEB |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 3 |
| 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 | 8-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 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, HID Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
5 answersWhich Siemens panelboards accept the NEB3B045B breaker?
This bolt-on breaker is compatible with Siemens P1, P2, and P3 panelboards. Proper installation requires the correct mounting strap kit for the specific panelboard type.
What type of conductors can be terminated on the NEB3B045B?
The standard factory lugs accept both copper and aluminum conductors ranging from 8 AWG to 1/0 AWG.
Is this breaker suitable for direct current applications?
Yes, the NEB3B045B carries a DC rating up to 250VDC, making it suitable for specific direct current systems alongside its standard AC ratings.
Are the trip settings on the NEB3B045B adjustable?
No, this breaker utilizes fixed thermal and fixed magnetic trip elements. It provides standard long-time and instantaneous protection without adjustable dials.
What is the difference between Siemens NEB and HEB breakers?
NEB and HEB breakers share the same physical frame size and mount in the same panelboards. The HEB series provides a higher interrupting capacity (AIC) compared to the standard NEB series.
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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.