Siemens HB2B100 Molded Case Circuit Breaker
- 100A
- 2 Pole
- Bolt-On
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Siemens HB2B100 - 100A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of Siemens' HB series, this 100A molded case circuit breaker delivers reliable thermal-magnetic protection with a 65 kAIC rating at 120/240VAC. The two-pole unit is built for commercial and industrial environments, featuring fixed long-time and instantaneous (LI) trip functions. It mounts securely into Siemens P1, P2, and P3 panelboards using a standard bolt-on configuration. The breaker includes load side lugs and is HACR rated for heating, air conditioning, and refrigeration equipment.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HB2B100 |
| Series | HB |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| 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 | 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, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip, Common Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
7 answersWhat panelboards accept the Siemens HB2B100 circuit breaker?
This bolt-on breaker is specifically designed for use in Siemens P1, P2, and P3 commercial panelboards.
Can the HB2B100 be installed in a standard residential load center?
No. The HB2B100 is a bolt-on breaker designed for commercial panelboards. Standard residential load centers require plug-on breakers, such as the Siemens QP or HQP series.
How does the HBQ type differ from standard BQ breakers?
The HBQ designation indicates a higher interrupting rating. While standard BQ breakers are rated for 10kAIC at 240V, the HBQ type provides a 65kAIC rating for systems requiring higher fault current protection.
Can the HB2B100 replace a standard BQ2B100 breaker?
Yes, the HB2B100 shares the same physical dimensions and bolt-on mounting configuration as the BQ2B100. It can be used as a direct replacement or upgrade when a higher 65kAIC interrupting rating is required.
What wire sizes can be used with the load side lugs on this breaker?
The load side lugs on the HB2B100 accept 8 to 1 AWG copper wire or 6 to 1/0 AWG aluminum wire.
What does the LI trip function indicate on this breaker?
The LI designation means the breaker provides Long-Time and Instantaneous trip functions. The long-time function protects against sustained overloads, while the instantaneous function trips immediately in the event of a severe short circuit.
Does the HB2B100 provide ground fault or arc fault protection?
No, this is a standard thermal-magnetic circuit breaker. It provides overload and short-circuit protection but does not include Ground Fault Circuit Interrupter (GFCI) or Arc Fault Circuit Interrupter (AFCI) features.
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