Siemens B270H00S01 Molded Case Circuit Breaker
- 70A
- 2 Pole
- Bolt-On
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Siemens B270H00S01 - 70A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, the Siemens B270H00S01 is a 2-pole, 70A molded case circuit breaker from the BLH series. It provides reliable thermal-magnetic protection for demanding electrical distribution systems. This bolt-on MCCB installs seamlessly into Siemens P1, P2, P3, P4, and P5 panelboards. Designed with a factory-installed 120VAC shunt trip, it allows for remote tripping capabilities while delivering a robust 22kAIC interrupting rating at 120/240VAC.Specifications
| Brand | Siemens |
|---|---|
| Series | BLH |
| Amperage | 70A |
| Poles | 2 |
| 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 | 4-1/0 AWG (Cu), 2-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG (Cu), 2 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 120VAC (Factory Installed) |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Product FAQs
6 answersWhat does the S01 suffix indicate on the B270H00S01 catalog number?
The S01 suffix signifies that this breaker comes with a factory-installed 120V AC shunt trip coil. This allows the breaker to be tripped remotely via a control signal, which is commonly used for emergency shutdowns or automated control systems.
Which Siemens panelboards accept the B270H00S01 breaker?
This B-frame bolt-on breaker is compatible with Siemens P1, P2, P3, P4, and P5 series panelboards. It is not designed for standard residential load centers that require plug-on connections.
What is the difference between the Siemens BL and BLH breaker series?
The H in the BLH series indicates a high interrupting rating. The B270H00S01 provides a 22kAIC rating at 120/240V AC, offering greater fault current protection compared to the standard 10kAIC rating of the base BL series.
Can the B270H00S01 be used as a direct replacement for a standard B270H?
Yes. It shares the exact same physical dimensions, bolt-on mounting, and electrical ratings as the standard B270H. The only difference is the addition of the 120V AC shunt trip, which can remain unwired if remote tripping is not required for your application.
What type of trip mechanism does the B270H00S01 utilize?
It features a fixed thermal-magnetic trip unit. The thermal component provides long-time protection against sustained overloads, while the magnetic component delivers instantaneous protection against short circuits.
Can the B270H00S01 be used on a 277/480V system?
No. The B270H00S01 is rated for a maximum of 120/240V AC. For 277/480V applications, a different breaker family, such as the Siemens BQD series, is required.
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