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Siemens B135H Molded Case Circuit Breaker
- 35A
- 1 Pole
- Bolt-On
Siemens
B135H
Molded Case Circuit Breaker
Brand
Siemens
SKU
B135H
Quantity
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Siemens B135H - 35A 1 Pole Molded Case Circuit Breaker
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Description
Designed to handle elevated fault currents, the Siemens B135H is a 1-pole, 35A molded case circuit breaker from the BLH series. It utilizes fixed thermal and magnetic trip elements to provide reliable long-time and instantaneous protection for commercial electrical systems. This unit mounts into Siemens P1, P2, P3, P4, and P5 panelboards via a secure bolt-on connection. Rated at 22 kAIC at 120/240VAC, it offers enhanced interrupting capacity compared to standard BL series breakers.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B135H |
| Series | BLH |
| Amperage | 35A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 10-8 AWG (Cu), 10-6 AWG (Al) |
| Max Wire | 8 AWG (Cu), 6 AWG (Al) |
| Min Wire | 10 AWG |
| 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, Handle Tie |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
Product FAQs
6 answersCan I install the B135H in a standard Siemens residential load center?
No. The B135H is a bolt-on breaker designed specifically for commercial panelboards, including the Siemens P1, P2, P3, P4, and P5 series. It will not fit in standard plug-on residential load centers.
Can I use the Siemens B135H to replace an older ITE or Gould breaker?
Yes. Siemens acquired ITE and Gould, and the BLH series is a direct, manufacturer-approved replacement for older 1-pole bolt-on breakers of the same frame size in ITE and Gould panelboards.
What does the H in the B135H part number indicate?
The H in the BLH series signifies a high-interrupting rating. While standard BL breakers are rated at 10kAIC, the B135H is rated for 22kAIC at 120/240VAC.
What type of protection does the B135H provide?
The B135H features a thermal-magnetic trip unit with fixed long-time and instantaneous (LI) functions. This provides standard protection against both gradual overloads and sudden short circuits.
How does the B135H connect to the panel busbar?
The B135H uses a bolt-on connection, which provides a secure, vibration-resistant mechanical attachment to the panelboard bus. This is required for many commercial and industrial applications.
Are the B135H lugs rated for aluminum wire?
Yes, the lugs accept 10 to 6 AWG aluminum conductors, as well as 10 to 8 AWG copper. When terminating aluminum wire, always apply an approved joint compound or oxide inhibitor to prevent corrosion.
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