Siemens B120HH00S01 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Bolt-On
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Siemens B120HH00S01 - 20A 1 Pole Molded Case Circuit Breaker
New
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Description
Part of the Siemens BL series, the B120HH00S01 is a commercial-grade molded case circuit breaker designed for reliable overcurrent protection and remote control. This 1-pole, 20A breaker features a factory-installed 120VAC shunt trip, allowing it to be tripped from a remote location. It utilizes a secure bolt-on connection for installation into Siemens P1, P2, P3, P4, and P5 panelboards. Rated at 65kAIC at 120/240VAC, it delivers high-capacity protection for demanding environments.Specifications
| Brand | Siemens |
|---|---|
| Series | B |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 14-10 AWG (Cu), 12-10 AWG (Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (Factory Installed), Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, HACR, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, SWD Rated |
Product FAQs
6 answersWhat does the 00S01 suffix indicate on the B120HH00S01 breaker?
The 00S01 suffix means this breaker includes a factory-installed 120VAC shunt trip mechanism. This allows the breaker to be opened from a remote location, which is frequently required for emergency shutdown systems or fire alarm integration.
Is the B120HH00S01 part of the Siemens BL breaker family?
Yes, this breaker is part of the BL series. The B120HH catalog number specifically designates it as an HBL type, which is the high-interrupting capacity version of the standard BL frame.
Which Siemens panelboards are compatible with this bolt-on breaker?
The B120HH00S01 is designed to bolt directly onto the bus of Siemens P1, P2, P3, P4, and P5 commercial panelboards.
What are the acceptable wire sizes for the B120HH00S01 terminals?
The mechanical lugs on this 20A breaker accept 14 to 10 AWG copper conductors or 12 to 10 AWG aluminum conductors.
Where is a 65kAIC interrupting rating typically required for a 20A breaker?
While standard branch breakers often have a 10kAIC rating, the 65kAIC rating on this HBL type breaker is required in commercial and industrial facilities with high available fault currents, ensuring the breaker can safely clear severe short circuits without sustaining damage.
How does the thermal-magnetic trip unit function on this breaker?
The fixed thermal-magnetic trip unit provides two layers of protection. The thermal element offers long-time protection against gradual overloads, while the magnetic element provides instantaneous tripping to quickly clear short circuits.
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