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Siemens HEB2B045B Molded Case Circuit Breaker
- 45A
- 2 Pole
- Bolt-On
Siemens
HEB2B045B
Molded Case Circuit Breaker
Brand
Siemens
SKU
HEB2B045B
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Siemens HEB2B045B - 45A 2 Pole Molded Case Circuit Breaker
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Description
A dependable solution for commercial facilities, the Siemens HEB2B045B is a 45A, 2-pole molded case circuit breaker. It utilizes fixed thermal-magnetic trip technology to protect against overloads, boasting a 65kAIC rating at 480VAC. The breaker installs firmly into Siemens P1, P2, and P3 panelboards using a standard bolt-on configuration. For modern retrofits, this unit is replaced by the 3VA4145-6ED24-0AA0, requiring the corresponding 3VA41 strap kit.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HEB2B045B |
| Series | HEB |
| Amperage | 45A |
| 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/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 |
|---|---|
| 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, High Interrupting Capacity, Non-Interchangeable Trip |
Product FAQs
5 answersWhich panelboards are compatible with the HEB2B045B circuit breaker?
This bolt-on breaker is designed specifically for installation in Siemens P1, P2, and P3 series commercial panelboards.
Can the Siemens HEB2B045B be used in direct current (DC) systems?
Yes, this breaker is rated for use in 125/250VDC systems and provides an interrupting capacity of up to 42kAIC for DC applications.
What is the difference between Siemens NEB and HEB circuit breakers?
Both series share the same physical frame size and mount in the same panelboards, but HEB breakers feature a higher interrupting capacity (up to 65kAIC at 480VAC) compared to the standard-rated NEB series.
Is the HEB2B045B suitable for reverse feed applications?
Yes, this thermal-magnetic breaker is capable of being reverse fed, allowing power to flow from the load side to the line side when required by your system design.
What does the LI trip function indicate on the HEB2B045B?
The LI code means the breaker is equipped with a thermal-magnetic trip unit providing Long-Time (L) protection for overloads and Instantaneous (I) protection for short circuits. Both the thermal and magnetic trip points are fixed on this model.
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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