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Siemens B27000S01 Molded Case Circuit Breaker
- 70A
- 2 Pole
- Bolt-On
Siemens
B27000S01
Molded Case Circuit Breaker
Brand
Siemens
SKU
B27000S01
Quantity
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Siemens B27000S01 - 70A 2 Pole Molded Case Circuit Breaker
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Description
Part of the BL series, this 70A molded case circuit breaker is engineered for commercial electrical distribution. It provides dependable long-time and instantaneous trip functions to protect branch circuits. The bolt-on unit mounts into Siemens P1, P2, and P3 panelboards. It features lug terminals that accept 8-4 AWG copper wire. Rated for 10kAIC at 120/240VAC, this breaker includes a factory-installed 120VAC shunt trip for remote tripping capabilities. It is fully HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B27000S01 |
| Series | B |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 8-4 AWG (Cu), 8-2 AWG (Al) |
| Max Wire | 4 AWG (Cu), 2 AWG (Al) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Shunt Trip 120VAC |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
7 answersIs the B27000S01 compatible with all Siemens panelboards?
No, this specific B-frame bolt-on breaker is designed exclusively for Siemens P1, P2, and P3 series panelboards. It is not compatible with standard load centers or plug-on residential panels.
What does the S01 suffix mean on the B27000S01 catalog number?
The S01 designation indicates that this breaker includes a factory-installed 120VAC shunt trip. This accessory allows the breaker to be tripped remotely by applying a 120V control signal.
Can this breaker be used to remotely disconnect power in an emergency?
Yes. Because it is equipped with a 120VAC shunt trip, it can be wired to an emergency stop button, fire alarm relay, or other control circuit to remotely open the breaker and disconnect power for safety.
What type of terminals are included on the B27000S01, and what wire sizes do they accept?
This breaker comes equipped with standard mechanical lugs designed for load-side wiring. They are dual-rated for copper and aluminum conductors, accepting 8 to 4 AWG copper wire or 8 to 2 AWG aluminum wire. Ensure proper torque is applied during installation to maintain a secure connection.
How does the thermal-magnetic trip unit function in this breaker?
The thermal-magnetic mechanism provides dual-level protection for branch circuits. The thermal component offers a long-time delay to prevent nuisance tripping from temporary overloads, such as motor inrush currents. The magnetic component provides instantaneous tripping to quickly clear severe short circuits.
What frame family does the B27000S01 belong to?
This breaker is part of the Siemens B-frame family, specifically the BL series of molded case circuit breakers. It shares the same physical dimensions and bolt-on mounting footprint as other standard B-frame breakers, but features a factory-installed shunt trip.
What is the Grainger cross-reference number for the Siemens B27000S01?
The Grainger part number for this 70A, 2-pole breaker with a 120VAC shunt trip is 6EVP3.
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