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Siemens BQ2B100H Molded Case Circuit Breaker
- 100A
- 2 Pole
- Bolt-On
Siemens
BQ2B100H
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQ2B100H
Quantity
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Siemens BQ2B100H - 100A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens BQ2B100H - 100A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | BQ2B100H |
| Series | BQ |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Panelboards |
| Wire Gauge | 4-1/0 AWG (Cu), 2-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG (Cu), 2 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
Sold out
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Siemens BQ2B100H - 100A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | BQ2B100H-R |
| Series | BQ |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Panelboards |
| Wire Gauge | 4-1/0 AWG (Cu), 2-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG (Cu), 2 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
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Description
Rated for 22 kAIC at 120/240V, the Siemens BQ2B100H is a 2-pole, 100A molded case circuit breaker built for commercial power distribution. It utilizes proven thermal-magnetic trip technology to defend against overloads. This unit features a bolt-on mounting style, allowing it to install securely into standard Siemens panelboards. The bolted design maintains strong electrical connections. Equipped with load side lugs, this high-interrupting capacity breaker is HACR rated for HVAC equipment.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQ2B100H |
| Series | BQ |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Panelboards |
| Wire Gauge | 4-1/0 AWG (Cu), 2-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG (Cu), 2 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
Product FAQs
7 answersWhat does the H suffix in the BQ2B100H catalog number indicate?
The H designates a high interrupting rating. Standard BQ breakers provide a 10kAIC rating, whereas the BQ2B100H delivers a 22kAIC rating for systems with higher available fault currents.
Which Siemens panelboards accept the BQ2B100H breaker?
This bolt-on breaker is compatible with Siemens commercial panelboards, including the S1, S2, S3, S4, S5, and P-series panels configured for BQ frame branch breakers.
Can the BQ2B100H be installed in a residential load center?
No. This is a bolt-on breaker intended for commercial panelboards. Residential Siemens load centers require plug-on breakers, such as the QP or QPH series.
Is the BQ2B100H suitable for reverse feed applications?
Yes. Siemens BQ frame breakers feature a non-interchangeable trip unit and are UL listed for reverse feed installations.
Does this breaker carry an HACR rating?
Yes, the BQ2B100H is HACR rated, making it approved for protecting heating, air conditioning, and refrigeration equipment circuits.
Are the BQ and BQD breaker series interchangeable?
No. While both share a 1-inch per pole footprint, they are designed for different voltage systems. The BQ series is rated for 120/240VAC, while the BQD series is rated for 480Y/277VAC applications.
What temperature rating is required for the conductors connected to this breaker?
Per NEC guidelines for breakers rated 100A and below, conductors must be rated for 60 or 75 degrees Celsius. The factory lugs accept both copper and aluminum wire.
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