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Siemens B270H Molded Case Circuit Breaker
- 70A
- 2 Pole
- Bolt-On
Siemens
B270H
Molded Case Circuit Breaker
Brand
Siemens
SKU
B270H
Quantity
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Siemens B270H - 70A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens B270H - 70A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | B270H |
| Series | BLH |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 240VAC, 22kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3, P4, P5 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 | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Sold out
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Siemens B270H - 70A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | B270H-R |
| Series | BLH |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 240VAC, 22kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3, P4, P5 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 | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
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Description
Engineered for robust electrical distribution, this 70A BLH-series molded case circuit breaker provides essential trip functions. It is ideal for commercial facilities requiring reliable defense against overloads. The bolt-on configuration installs into Siemens P1 through P5 panelboards. It accepts 8-4 AWG copper conductors and can substitute for QOB270VH and QBHW2070 breakers. With a high interrupting rating of 22kAIC at 120/240VAC, it safely handles elevated fault currents.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B270H |
| Series | BLH |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 240VAC, 22kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3, P4, P5 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 | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
6 answersWhich panelboards accept the Siemens B270H circuit breaker?
The B270H is a bolt-on breaker designed specifically for installation in Siemens P1, P2, P3, P4, and P5 commercial panelboards.
What is the difference between the Siemens BL and BLH series breakers?
The BLH series, including the B270H, features a high-interrupting capacity. While standard BL breakers typically offer a 10kAIC rating, the BLH series provides a 22kAIC interrupting rating at 120/240VAC for systems with higher available fault currents.
What are the acceptable wire gauges for the B270H load lugs?
The terminal lugs accommodate 8 to 4 AWG copper wire or 8 to 2 AWG aluminum wire. Ensure proper torque specifications are followed during installation for a secure connection.
How does the thermal-magnetic trip unit function on this breaker?
The fixed thermal-magnetic mechanism provides two types of protection. The thermal element responds to sustained overloads with a long-time delay, while the magnetic element trips instantaneously in the event of a short circuit.
Does this breaker require a specific mounting hardware kit?
The B270H features a bolt-on connection that secures directly to the bus bars of compatible Siemens panelboards. No separate plug-in mounting hardware is used, ensuring a rigid and reliable connection for commercial applications.
Can the B270H replace older ITE circuit breakers?
Yes. Siemens acquired ITE, and the B270H is an authentic Siemens/ITE product. It serves as a direct replacement for legacy ITE 70A, 2-pole, bolt-on breakers that share the BLH frame specifications.
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