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Siemens LGB3B110B Molded Case Circuit Breaker
- 110A
- 3 Pole
- Bolt-On
Siemens
LGB3B110B
Molded Case Circuit Breaker
Brand
Siemens
SKU
LGB3B110B
Quantity
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Siemens LGB3B110B - 110A 3 Pole Molded Case Circuit Breaker
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Description
A high-capacity solution for industrial power systems, the Siemens LGB3B110B is a 3-pole, 110A molded case circuit breaker. It utilizes proven thermal-magnetic trip technology to handle overloads and short circuits. This breaker is engineered to fit Siemens P1, P2, and P3 panelboards. When upgrading older panels, note that this model is replaced by the 3VA4111-6ED34-0AA0, which requires a separate mounting kit. It boasts a 100kAIC rating at 240VAC and is HACR rated for HVAC applications.Specifications
| Brand | Siemens |
|---|---|
| Part Number | LGB3B110B |
| Series | LGB |
| Amperage | 110A |
| 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 |
| Frame Type | LGB |
|---|---|
| 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 (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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Trip-Free Mechanism, Non-Interchangeable Trip, High Interrupting Capacity |
Product FAQs
6 answersWhich panelboards are compatible with the Siemens LGB3B110B?
This bolt-on circuit breaker is designed specifically for installation in Siemens P1, P2, and P3 panelboards.
What wire sizes and materials are accepted by the lugs on this breaker?
The included lugs accept 8 to 1/0 AWG copper wire or 8 to 2/0 AWG aluminum wire.
Can the LGB3B110B be used in DC voltage applications?
Yes, this breaker is rated for 125/250V DC applications with an interrupting capacity of 14kA.
How does the interrupting rating scale with different AC system voltages?
The breaker provides a 100kA interrupting capacity at 240V AC, which decreases to 65kA at 480/277V AC, and 14kA at 600/347V AC.
Are the thermal and magnetic trip settings adjustable on this model?
No, the LGB3B110B features fixed thermal and fixed magnetic trip settings for its long-time and instantaneous (LI) protection functions.
What frame family does the LGB3B110B belong to?
It is part of the Siemens Sentron series and falls under the GB or GG frame classification.
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