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B370 | Siemens 70A BL Series 3-Pole Thermal Magnetic Molded Case Circuit Breaker
- Regular price
- $124.00
- Sale price
- $124.00
- Regular price
-
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Product Description P/N: B370
Description
The Siemens B370 is a 70A, 240 VAC molded case circuit breaker designed for low-voltage three-phase electrical distribution. This BL Series breaker features a thermal-magnetic trip unit, a 10 kA interrupt rating, and a bolt-on connection for secure panel installation. Built with a durable toggle actuator and panel-mount design, it provides dependable protection for a wide range of commercial and industrial loads.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | B370 |
| Subcategory | Molded Case Circuit Breaker |
| Type | Type BL Low Voltage |
| Series | BL |
| Voltage Rating | 240 VAC |
| Amperage Rating | 70 A |
| Frequency Rating | 60 Hz |
| Interrupt Rating | 10 kA |
| Frame | BL |
| Trip Type | Thermal Magnetic |
| Number of Poles | 3 |
| Phase | 3-Phase |
| Actuator Type | Toggle |
| Connection Type | Bolt-On |
| Wire Size Compatibility | 8–4 AWG Cu, 8–2 AWG Al |
| Mounting Type | Panel Mount |
| Temperature Rating | 40 °C |
| Dimensions | 12.8 in L × 4.5 in W × 3.7 in H |
Information About B370
The B370 is part of Siemens’ BL Series molded case circuit breakers, engineered for low-voltage power distribution where reliable fault interruption and straightforward installation are required. Its BL frame construction supports 3-pole protection and provides compatibility with bolt-on mounting systems frequently used in panelboards and load centers. The thermal-magnetic trip technology delivers both overload and short-circuit protection, ensuring stable operation under varying electrical conditions. Designed for 240 VAC, 60 Hz systems with a 10 kA interrupt rating, the B370 is well-suited for three-phase circuits that demand durable protective devices with consistent performance.
Key Features:
- Thermal-magnetic trip: Provides overload and short-circuit protection in one integrated unit.
- 70A, 240 VAC rating: Supports moderate to heavy electrical loads in commercial and industrial systems.
- 10 kA interrupt capacity: Ensures safe clearing of fault currents.
- BL Series frame: Compact, low-voltage molded case design for panelboard applications.
- 3-pole, 3-phase configuration: Suitable for standard three-phase distribution circuits.
- Bolt-on connection: Enables secure mechanical and electrical attachment within panel installations.
- Durable toggle actuator: Allows reliable manual operation.
- Wide wire compatibility: Accepts 8–4 AWG copper or 8–2 AWG aluminum conductors.
The B370 delivers the reliability and precision required for dependable low-voltage power distribution and circuit protection.
Description
The Siemens B370 is a 70A, 240 VAC molded case circuit breaker designed for low-voltage three-phase electrical distribution. This BL Series breaker features a thermal-magnetic trip unit, a 10 kA interrupt rating, and a bolt-on connection for secure panel installation. Built with a durable toggle actuator and panel-mount design, it provides dependable protection for a wide range of commercial and industrial loads.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | B370 |
| Subcategory | Molded Case Circuit Breaker |
| Type | Type BL Low Voltage |
| Series | BL |
| Voltage Rating | 240 VAC |
| Amperage Rating | 70 A |
| Frequency Rating | 60 Hz |
| Interrupt Rating | 10 kA |
| Frame | BL |
| Trip Type | Thermal Magnetic |
| Number of Poles | 3 |
| Phase | 3-Phase |
| Actuator Type | Toggle |
| Connection Type | Bolt-On |
| Wire Size Compatibility | 8–4 AWG Cu, 8–2 AWG Al |
| Mounting Type | Panel Mount |
| Temperature Rating | 40 °C |
| Dimensions | 12.8 in L × 4.5 in W × 3.7 in H |
Information About B370
The B370 is part of Siemens’ BL Series molded case circuit breakers, engineered for low-voltage power distribution where reliable fault interruption and straightforward installation are required. Its BL frame construction supports 3-pole protection and provides compatibility with bolt-on mounting systems frequently used in panelboards and load centers. The thermal-magnetic trip technology delivers both overload and short-circuit protection, ensuring stable operation under varying electrical conditions. Designed for 240 VAC, 60 Hz systems with a 10 kA interrupt rating, the B370 is well-suited for three-phase circuits that demand durable protective devices with consistent performance.
Key Features:
- Thermal-magnetic trip: Provides overload and short-circuit protection in one integrated unit.
- 70A, 240 VAC rating: Supports moderate to heavy electrical loads in commercial and industrial systems.
- 10 kA interrupt capacity: Ensures safe clearing of fault currents.
- BL Series frame: Compact, low-voltage molded case design for panelboard applications.
- 3-pole, 3-phase configuration: Suitable for standard three-phase distribution circuits.
- Bolt-on connection: Enables secure mechanical and electrical attachment within panel installations.
- Durable toggle actuator: Allows reliable manual operation.
- Wide wire compatibility: Accepts 8–4 AWG copper or 8–2 AWG aluminum conductors.
The B370 delivers the reliability and precision required for dependable low-voltage power distribution and circuit protection.