Siemens B135HH Molded Case Circuit Breaker
- 35A
- 1 Pole
- Bolt-On
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Siemens B135HH - 35A 1 Pole Molded Case Circuit Breaker
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Description
Siemens B135HH is a molded case circuit breaker built to protect circuits against overloads and short circuits. This 1-pole breaker is rated 35A and 120/240VAC, with an interrupting rating of 65kA at 120/240VAC under UL 489. Part of the HBL series, it uses bolt-on mounting. Its thermal magnetic trip provides LI functionality for long-time and instantaneous protection.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B135HH |
| Series | HBL |
| Amperage | 35A |
| 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 Panelboards |
| Wire Gauge | 8-6 AWG |
| Max Wire | 6 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
7 answersWhen should I select the Siemens B135HH for a circuit?
Choose the Siemens B135HH when the circuit design calls for 35A overcurrent protection. Coordinate that current rating with the circuit load and conductor ampacity.
How do I evaluate the B135HH interrupting rating?
The B135HH has a UL 489 interrupting rating of 65kA at 120/240VAC. Compare that rating with the available fault current at the installation point to ensure the breaker can safely interrupt a fault.
How does the thermal-magnetic trip work, and can I adjust it?
The thermal element responds to sustained overloads, while the magnetic element responds rapidly to short-circuit current. The B135HH has a fixed trip, so select it for an application that does not require adjustable trip settings.
What does bolt-on mounting mean for installation?
The B135HH uses a bolted mounting connection rather than plug-in insertion. Plan for an installation procedure that includes fastening the breaker at its mounting connection.
What wire sizes can I terminate on the load side?
The B135HH has a load-side lug with a wire range of AWG 8 through AWG 6. Select a conductor within that range while also meeting the circuit's ampacity requirements.
When is the B135HH's single-pole configuration appropriate?
The B135HH is a single-pole breaker for single-phase applications. Select it when the circuit design calls for overcurrent protection on one conductor rather than a multipole breaker.
What dimensions should I use when planning installation space?
The B135HH measures 3.9 in high, 1 in wide and 3.5 in deep. Use these body dimensions when laying out installation space, and account separately for conductor routing and termination access.
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