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BG320 | Siemens Molded Case Circuit Breaker
- Regular price
- $144.00
- Sale price
- $144.00
- Regular price
-
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Product Description P/N: BG320
Description
The Siemens BG320 is a 20-amp, three-pole molded case circuit breaker designed for 120/240V three-phase applications. As part of the BL Series, it uses a thermal-magnetic trip unit with long-time and instantaneous functions to protect against overloads and short-circuit faults. This bolt-on breaker includes a switching neutral feature and is intended for panelboard mounting with load-side lug terminals.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | BG320 |
| Subcategory | Molded Case Circuit Breaker |
| Family | BL Series |
| Type | BG |
| Voltage Rating | 120/240 V |
| Amperage Rating | 20 A |
| Phase | 3-Phase |
| Poles | 3 |
| AIC Rating | 10 kA @ 240 V |
| Protection Type | Thermal Magnetic |
| Trip Functions | LI – Long-Time and Instantaneous |
| Connection Type | Bolt-On |
| Neutral Feature | Switching neutral |
| Terminal Type | Load-side lugs |
| Temperature Rating | 40 °C |
| Mounting | Panelboard mounted |
| Application | Commercial and industrial three-phase branch circuit protection |
Information About BG320
The BG320 is part of Siemens’ BL Series, engineered for dependable circuit protection in light industrial and commercial power distribution systems. Its 20-amp rating and three-pole design make it suitable for low-capacity three-phase circuits, while the inclusion of a switching neutral offers enhanced versatility for systems requiring neutral isolation. With a thermal-magnetic trip mechanism, the breaker provides reliable long-time overload protection and instantaneous fault clearing supported by a 10 kA interrupting capacity at 240V. The bolt-on mounting style ensures rigid, secure installation, and the molded case construction provides durability in demanding environments. Designed for panelboard integration, the BG320 offers stable performance and balanced phase protection across its service life.
Key Features:
- BL Series molded case design: Durable construction for commercial and industrial use.
- 20A current rating: Suitable for lower-capacity three-phase branch circuits.
- 120/240V operation: Supports standard commercial power systems.
- Switching neutral capability: Provides neutral isolation when required by the application.
- Thermal-magnetic trip unit: Protects against overloads and short-circuit events.
- LI trip functions: Long-time and instantaneous operation for precise protection.
- 10 kA interrupt rating: Meets typical fault-level requirements for panelboard installations.
- Three-pole configuration: Ensures balanced protection across all phases.
- Bolt-on connection: Provides secure mechanical and electrical panel mounting.
- Load-side lug terminals: Simplify conductor termination.
The BG320 delivers the reliability and precision required for commercial and industrial three-phase circuit protection with switching neutral functionality.
Description
The Siemens BG320 is a 20-amp, three-pole molded case circuit breaker designed for 120/240V three-phase applications. As part of the BL Series, it uses a thermal-magnetic trip unit with long-time and instantaneous functions to protect against overloads and short-circuit faults. This bolt-on breaker includes a switching neutral feature and is intended for panelboard mounting with load-side lug terminals.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | BG320 |
| Subcategory | Molded Case Circuit Breaker |
| Family | BL Series |
| Type | BG |
| Voltage Rating | 120/240 V |
| Amperage Rating | 20 A |
| Phase | 3-Phase |
| Poles | 3 |
| AIC Rating | 10 kA @ 240 V |
| Protection Type | Thermal Magnetic |
| Trip Functions | LI – Long-Time and Instantaneous |
| Connection Type | Bolt-On |
| Neutral Feature | Switching neutral |
| Terminal Type | Load-side lugs |
| Temperature Rating | 40 °C |
| Mounting | Panelboard mounted |
| Application | Commercial and industrial three-phase branch circuit protection |
Information About BG320
The BG320 is part of Siemens’ BL Series, engineered for dependable circuit protection in light industrial and commercial power distribution systems. Its 20-amp rating and three-pole design make it suitable for low-capacity three-phase circuits, while the inclusion of a switching neutral offers enhanced versatility for systems requiring neutral isolation. With a thermal-magnetic trip mechanism, the breaker provides reliable long-time overload protection and instantaneous fault clearing supported by a 10 kA interrupting capacity at 240V. The bolt-on mounting style ensures rigid, secure installation, and the molded case construction provides durability in demanding environments. Designed for panelboard integration, the BG320 offers stable performance and balanced phase protection across its service life.
Key Features:
- BL Series molded case design: Durable construction for commercial and industrial use.
- 20A current rating: Suitable for lower-capacity three-phase branch circuits.
- 120/240V operation: Supports standard commercial power systems.
- Switching neutral capability: Provides neutral isolation when required by the application.
- Thermal-magnetic trip unit: Protects against overloads and short-circuit events.
- LI trip functions: Long-time and instantaneous operation for precise protection.
- 10 kA interrupt rating: Meets typical fault-level requirements for panelboard installations.
- Three-pole configuration: Ensures balanced protection across all phases.
- Bolt-on connection: Provides secure mechanical and electrical panel mounting.
- Load-side lug terminals: Simplify conductor termination.
The BG320 delivers the reliability and precision required for commercial and industrial three-phase circuit protection with switching neutral functionality.