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HGB3B125B | Siemens 125A 480V 3-Pole 35 kA Type HGB Bolt-On Thermal-Magnetic MCCB
- Regular price
- $612.00
- Sale price
- $612.00
- Regular price
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Product Description P/N: HGB3B125B
Description
The Siemens HGB3B125B is a 125-amp, 480-volt molded case circuit breaker designed for dependable low-voltage protection in commercial and industrial systems. This three-pole breaker utilizes a thermal-magnetic trip unit to guard against overload and short-circuit conditions. With a 35 kA interrupt rating and bolt-on/low-tab connection options, the HGB3B125B delivers secure installation and high-performance fault clearing.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | HGB3B125B |
| Subcategory | Molded Case Circuit Breaker |
| Type | Type HGB Low Voltage |
| Voltage Rating | 480 VAC |
| Amperage Rating | 125 A |
| Frequency Rating | 50/60 Hz |
| Interrupt Rating | 35 kA |
| Frame Size | 125 A |
| Trip Type | Thermal Magnetic |
| Phase | 3-Phase |
| Number of Poles | 3 |
| Connection Type | Bolt-On / Low Tab |
| Wire Size | 8–1/0 AWG (Bolt-On), 8–2/0 AWG (Low Tab) |
| Mounting Type | Panel Mount |
| Temperature Rating | 40 °C |
| Dimensions | 5.4 in H × 3 in W × 2.8 in D |
| Application | Industrial and commercial low-voltage circuit protection |
Information About HGB3B125B
The HGB3B125B belongs to Siemens’ Type HGB low-voltage breaker family, engineered for durability and consistent protection in three-phase 480 VAC applications. Its panel-mount design, combined with both bolt-on and low-tab connection compatibility, supports flexible installation in various distribution assemblies. The breaker accepts wire sizes from 8 AWG to 1/0 AWG (bolt-on) and 8 AWG to 2/0 AWG (low tab), enhancing wiring versatility. With a thermal-magnetic trip mechanism and a 35 kA interrupt rating, the HGB3B125B provides reliable system protection in demanding environments.
Key Features:
- 125A, 480V rating: Supports medium–high capacity three-phase loads.
- 35 kA interrupt rating: Handles high fault currents for improved system safety.
- Thermal-magnetic trip: Provides overload and instantaneous fault protection.
- 3-pole configuration: Designed for balanced three-phase distribution.
- Bolt-on/low-tab connection: Supports multiple installation methods.
- Panel-mount design: Integrates easily into low-voltage distribution panels.
- Wide wire range: Accepts 8 AWG to 1/0 or 2/0 AWG depending on connection type.
- Compact dimensions: 5.4 in H × 3 in W × 2.8 in D for space-efficient installations.
The HGB3B125B delivers the reliability and precision required for molded case protection in industrial and commercial low-voltage systems.
Description
The Siemens HGB3B125B is a 125-amp, 480-volt molded case circuit breaker designed for dependable low-voltage protection in commercial and industrial systems. This three-pole breaker utilizes a thermal-magnetic trip unit to guard against overload and short-circuit conditions. With a 35 kA interrupt rating and bolt-on/low-tab connection options, the HGB3B125B delivers secure installation and high-performance fault clearing.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | HGB3B125B |
| Subcategory | Molded Case Circuit Breaker |
| Type | Type HGB Low Voltage |
| Voltage Rating | 480 VAC |
| Amperage Rating | 125 A |
| Frequency Rating | 50/60 Hz |
| Interrupt Rating | 35 kA |
| Frame Size | 125 A |
| Trip Type | Thermal Magnetic |
| Phase | 3-Phase |
| Number of Poles | 3 |
| Connection Type | Bolt-On / Low Tab |
| Wire Size | 8–1/0 AWG (Bolt-On), 8–2/0 AWG (Low Tab) |
| Mounting Type | Panel Mount |
| Temperature Rating | 40 °C |
| Dimensions | 5.4 in H × 3 in W × 2.8 in D |
| Application | Industrial and commercial low-voltage circuit protection |
Information About HGB3B125B
The HGB3B125B belongs to Siemens’ Type HGB low-voltage breaker family, engineered for durability and consistent protection in three-phase 480 VAC applications. Its panel-mount design, combined with both bolt-on and low-tab connection compatibility, supports flexible installation in various distribution assemblies. The breaker accepts wire sizes from 8 AWG to 1/0 AWG (bolt-on) and 8 AWG to 2/0 AWG (low tab), enhancing wiring versatility. With a thermal-magnetic trip mechanism and a 35 kA interrupt rating, the HGB3B125B provides reliable system protection in demanding environments.
Key Features:
- 125A, 480V rating: Supports medium–high capacity three-phase loads.
- 35 kA interrupt rating: Handles high fault currents for improved system safety.
- Thermal-magnetic trip: Provides overload and instantaneous fault protection.
- 3-pole configuration: Designed for balanced three-phase distribution.
- Bolt-on/low-tab connection: Supports multiple installation methods.
- Panel-mount design: Integrates easily into low-voltage distribution panels.
- Wide wire range: Accepts 8 AWG to 1/0 or 2/0 AWG depending on connection type.
- Compact dimensions: 5.4 in H × 3 in W × 2.8 in D for space-efficient installations.
The HGB3B125B delivers the reliability and precision required for molded case protection in industrial and commercial low-voltage systems.