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Siemens LGB1B030B Molded Case Circuit Breaker
- 30A
- 1 Pole
- Bolt-On
Siemens
LGB1B030B
Molded Case Circuit Breaker
Brand
Siemens
SKU
LGB1B030B
Quantity
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Siemens LGB1B030B - 30A 1 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens LGB1B030B - 30A 1 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | LGB1B030B |
| Series | LGB |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 277VAC, 125VDC, 347VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 120VAC, 65kA @ 277VAC, 14kA @ 125VDC, 14kA @ 347VAC |
| Frame Type | LGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 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, Alarm Switch |
|---|---|
| Accessories | Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism |
Quantity
Siemens LGB1B030B - 30A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | LGB |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 277VAC, 125VDC, 347VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 120VAC, 65kA @ 277VAC, 14kA @ 125VDC, 14kA @ 347VAC |
| Frame Type | LGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 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, Alarm Switch |
|---|---|
| Accessories | Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism |
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Description
Built for demanding industrial applications, the Siemens LGB1B030B is a 30A, 1-pole molded case circuit breaker. It delivers dependable long-time and instantaneous trip functions. The unit mounts via a secure bolt-on connection into Siemens P1, P2, and P3 panelboards. While eventually replaced by the 3VA41 line, this GB frame breaker remains essential for maintaining existing systems. It features a 65kAIC rating at 277VAC, HID and HACR ratings, and reverse feed capability.Specifications
| Brand | Siemens |
|---|---|
| Part Number | LGB1B030B |
| Series | LGB |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 277VAC, 125VDC, 347VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 120VAC, 65kA @ 277VAC, 14kA @ 125VDC, 14kA @ 347VAC |
| Frame Type | LGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 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, Alarm Switch |
|---|---|
| Accessories | Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism |
Product FAQs
8 answersWhich panelboards are compatible with the Siemens LGB1B030B circuit breaker?
The LGB1B030B is a bolt-on molded case circuit breaker designed for use in Siemens P1, P2, and P3 panelboards.
What wire sizes do the lugs on the LGB1B030B accept?
The factory-installed lugs accept 14-6 AWG copper (Cu) or 12-6 AWG aluminum (Al) conductors.
Can the Siemens LGB1B030B be used in DC applications?
Yes, this 1-pole breaker is rated for 125VDC applications with an interrupting capacity of 14kAIC.
Is the LGB1B030B rated for 347V systems?
Yes, it carries a 14kAIC interrupting rating at 347VAC, making it suitable for 347V lighting and distribution circuits.
Can the LGB1B030B be mounted on a standard DIN rail?
No, the LGB1B030B is a bolt-on circuit breaker specifically configured for panelboard mounting. It is not designed for DIN rail installation.
What type of trip unit is equipped on the LGB1B030B?
It features a fixed thermal-magnetic trip unit providing Long-Time (L) and Instantaneous (I) protection against overloads and short circuits.
What frame family does the LGB1B030B belong to?
It is part of the Siemens SENTRON family, specifically the GB/GG frame group, which features a compact 1-inch wide per pole design.
Can the LGB1B030B be used with handle ties for shared neutral applications?
Yes, Siemens offers handle ties for the LGB frame, allowing single-pole breakers to be locked out simultaneously when using shared neutrals.
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