Siemens B3100GFHH GFCI Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Quantity
Siemens B3100GFHH - 100A GFCI Molded Case Circuit Breaker
New
Quantity
Description
Engineered for three-phase commercial and industrial systems, the Siemens B3100GFHH delivers reliable 5mA personnel protection. This 100-amp, three-pole GFCI breaker operates on 208Y/120V networks and includes an LED fault indicator alongside automated self-test capabilities. The robust bolt-on design mounts into Siemens P1, P2, and P3 panelboards. With a formidable 65 kAIC interrupting capacity, this thermal-magnetic device safely manages severe electrical faults and is fully HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Series | HBQ |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 208Y/120VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 208Y/120VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 8-1 AWG (Cu), 6-1/0 AWG (Al) |
| Max Wire | 1 AWG (Cu), 1/0 AWG (Al) |
| Min Wire | 8 AWG (Cu), 6 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Special Classification | GFCI |
|---|---|
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Load Lugs |
| Standards | CSA C22.2 No. 5, HACR, UL 489, UL 943 |
| Approval | cUL, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Self Test, Non-Interchangeable Trip |
Product FAQs
6 answersCan I install the B3100GFHH in a standard residential load center?
No. This is a bolt-on breaker specifically designed for commercial and industrial Siemens P1, P2, and P3 panelboards, not standard plug-on residential load centers.
Can I use aluminum wiring with the B3100GFHH breaker?
Yes, the factory-installed lugs are dual-rated for both copper and aluminum conductors. They accept 8 to 1 AWG copper or 6 to 1/0 AWG aluminum wire.
Does the B3100GFHH provide personnel or equipment ground fault protection?
It provides Class A 5mA personnel protection. It is designed to protect people from electrical shock rather than just providing equipment protection, which typically operates at a 30mA threshold.
Does this breaker require a dedicated neutral connection?
Yes. It comes equipped with a pigtail neutral that must be wired directly to the panelboard neutral bus to power the internal ground fault circuitry.
What does the LIG trip function code mean on this Siemens breaker?
LIG indicates that the breaker provides Long-Time overload protection, Instantaneous short-circuit protection, and Ground-Fault protection within a single thermal-magnetic unit.
Is the B3100GFHH suitable for 240V or 480V three-phase systems?
No. This breaker is strictly rated for 208Y/120V AC systems. Installing it on higher voltage systems violates its UL listing and compromises the ground fault detection circuitry.
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