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Siemens HGB3B040B Molded Case Circuit Breaker
- 40A
- 3 Pole
- Bolt-On
Siemens
HGB3B040B
Molded Case Circuit Breaker
Brand
Siemens
SKU
HGB3B040B
Quantity
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Siemens HGB3B040B - 40A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens HGB3B040B - 40A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Series | HGB |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 35kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 42kA @ 125/250VDC |
| Frame Type | HGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 8-1/0 AWG (Cu), 8-2/0 AWG (Al) |
| Max Wire | 1/0 AWG (Cu), 2/0 AWG (Al) |
| 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, High Interrupting Capacity |
Quantity
Siemens HGB3B040B - 40A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | HGB |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 35kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 42kA @ 125/250VDC |
| Frame Type | HGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 8-1/0 AWG (Cu), 8-2/0 AWG (Al) |
| Max Wire | 1/0 AWG (Cu), 2/0 AWG (Al) |
| 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, High Interrupting Capacity |
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Description
Engineered for commercial use, the Siemens HGB3B040B is a 3-pole, 40A molded case circuit breaker from the Sentron family. It features thermal-magnetic trip technology with fixed LI protection. This bolt-on breaker mounts into Siemens P1 through P5 panelboards. For modern upgrades, it is replaced by the 3VA5140-5EC31-0AA0 using a mounting kit. Rated at 100 kAIC at 240VAC and 35 kAIC at 480Y/277VAC, it provides robust fault protection. The unit is HACR rated and supports reverse feed.Specifications
| Brand | Siemens |
|---|---|
| Series | HGB |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 35kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 42kA @ 125/250VDC |
| Frame Type | HGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 8-1/0 AWG (Cu), 8-2/0 AWG (Al) |
| Max Wire | 1/0 AWG (Cu), 2/0 AWG (Al) |
| 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, High Interrupting Capacity |
Product FAQs
7 answersWhat panelboards are compatible with the HGB3B040B?
This bolt-on breaker is designed for installation in Siemens P1, P2, P3, P4, and P5 panelboards.
Can this breaker be used in DC applications?
Yes, the HGB3B040B is rated for DC systems up to 125/250VDC, providing an interrupting capacity of 42kA.
Is the trip unit on the HGB3B040B adjustable?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip functions cannot be adjusted in the field.
What wire sizes are accepted by the factory lugs?
The included lugs accept 8 to 1/0 AWG copper wire or 8 to 2/0 AWG aluminum wire.
What does the LI trip function indicate?
The LI designation means the thermal-magnetic trip unit provides Long-Time protection for overloads and Instantaneous protection for short circuits.
Does this breaker mount to a standard DIN rail?
No, the HGB3B040B is a bolt-on molded case circuit breaker designed specifically for Siemens panelboard chassis mounting. It is not compatible with DIN rail systems.
How does the HGB frame compare to standard BQD breakers?
While both can be used in Siemens panelboards, the HGB frame offers higher interrupting ratings, such as 100kA at 240VAC, making it suitable for systems with higher available fault currents.
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