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Siemens LGB3B080B Molded Case Circuit Breaker
- 80A
- 3 Pole
- Bolt-On
Siemens
LGB3B080B
Molded Case Circuit Breaker
Brand
Siemens
SKU
LGB3B080B
Quantity
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Siemens LGB3B080B - 80A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Siemens LGB3B080B - 80A 3 Pole Molded Case Circuit Breaker
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| Brand | Siemens |
|---|---|
| Part Number | LGB3B080B |
| Series | LGB |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 14kA @ 125/250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 8-1/0 AWG (Cu), 8-2/0 AWG (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, Alarm Switch |
|---|---|
| Accessories | Load Lugs |
| 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, Trip-Free Mechanism, Common Trip |
Quantity
Siemens LGB3B080B - 80A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | LGB |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 14kA @ 125/250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 8-1/0 AWG (Cu), 8-2/0 AWG (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, Alarm Switch |
|---|---|
| Accessories | Load Lugs |
| 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, Trip-Free Mechanism, Common Trip |
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Description
Built for commercial power distribution, the Siemens LGB3B080B is a 3-pole, 80A molded case circuit breaker with fixed thermal-magnetic (LI) protection. It installs into Siemens P1, P2, and P3 panelboards via a secure bolt-on connection. Note that this unit is replaced by the 3VA5180-6ED31-0AA0, requiring a strap kit for P1 panels. Rated for 65kAIC at 480Y/277VAC, it provides robust fault protection. The breaker is HACR rated and includes low tab terminals for reliable connections.Specifications
| Brand | Siemens |
|---|---|
| Series | LGB |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 14kA @ 125/250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 8-1/0 AWG (Cu), 8-2/0 AWG (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, Alarm Switch |
|---|---|
| Accessories | Load Lugs |
| 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, Trip-Free Mechanism, Common Trip |
Product FAQs
5 answersWhich Siemens panelboards are compatible with the LGB3B080B circuit breaker?
This bolt-on breaker is designed for use in Siemens P1, P2, and P3 panelboards.
What are the acceptable wire sizes for the lugs on the LGB3B080B?
The factory-installed lugs accept 8 to 1/0 AWG copper (Cu) wire or 8 to 2/0 AWG aluminum (Al) wire.
Is the Siemens LGB3B080B rated for direct current (DC) systems?
Yes, this thermal-magnetic breaker is rated for DC applications up to 250VDC, providing an interrupting capacity of 14kA at 125/250VDC.
What frame family does the LGB3B080B belong to?
It is part of the Siemens SENTRON series and falls under the GB/GG frame group.
Does this breaker feature adjustable trip settings?
No, the LGB3B080B features a fixed thermal and fixed magnetic trip unit with standard long-time and instantaneous (LI) protection functions.
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