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FXD63B125 | Siemens Sentron FXD Series 125A 3-Pole Molded Case Circuit Breaker
- Regular price
- $815.99
- Sale price
- $815.99
- Regular price
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Product Description P/N: FXD63B125
Description
The Siemens FXD63B125 is a 3-pole molded case circuit breaker designed for three-phase power distribution systems. It is rated at 125 amps with a maximum operating voltage of 600 VAC and uses thermal-magnetic trip technology for overcurrent protection. This Sentron FXD series breaker provides dependable long-time and instantaneous protection in commercial and industrial applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | FXD63B125 |
| Subcategory | Molded Case Circuit Breaker |
| Product Series | Sentron |
| Breaker Type | FXD Low Voltage |
| Rated Current | 125 A |
| Rated Voltage | 600 VAC |
| Frequency Rating | 50/60 Hz |
| Number of Poles | 3 |
| Phase | Three-phase |
| Trip Unit Technology | Thermal-magnetic |
| Trip Functions | Long-time, Instantaneous |
| Trip Range | 800–1500 A |
| Interrupting Capacity | 35 kA @ 480 VAC |
| Mounting Type | Bolt-on |
| Connection Type | Line/Load lug (lugs not installed) |
| Ambient Temperature Rating | 40 °C |
| Frame Size | FD |
| Dimensions (L×W×H) | 6.9 × 5.5 × 11.3 in |
Information About FXD63B125
The FXD63B125 is part of the Siemens Sentron low-voltage circuit breaker family, specifically within the FXD frame classification. It is engineered for 3-phase systems and calibrated for operation at an ambient temperature of 40 °C. The breaker incorporates a non-interchangeable trip unit that combines thermal and magnetic elements to respond to both overload and short-circuit conditions. It is UL listed for reverse-fed applications and is typically installed in distribution panels and switchboards where consistent fault protection and standardized Siemens compatibility are required.
Key Features:
- Sentron FXD series design: Built for Siemens low-voltage power distribution systems.
- Three-pole configuration: Supports three-phase electrical networks.
- Thermal-magnetic trip unit: Provides long-time and instantaneous protection.
- High voltage capability: Rated for operation up to 600 VAC.
- Standard interrupting capacity: Designed to interrupt high fault currents safely.
- Reverse-fed UL listing: Approved for line or load-side power connections.
- Fixed trip mechanism: Ensures consistent, non-adjustable protection characteristics.
The FXD63B125 delivers the reliability and precision required for three-phase circuit protection in commercial and industrial electrical distribution systems.
Description
The Siemens FXD63B125 is a 3-pole molded case circuit breaker designed for three-phase power distribution systems. It is rated at 125 amps with a maximum operating voltage of 600 VAC and uses thermal-magnetic trip technology for overcurrent protection. This Sentron FXD series breaker provides dependable long-time and instantaneous protection in commercial and industrial applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | FXD63B125 |
| Subcategory | Molded Case Circuit Breaker |
| Product Series | Sentron |
| Breaker Type | FXD Low Voltage |
| Rated Current | 125 A |
| Rated Voltage | 600 VAC |
| Frequency Rating | 50/60 Hz |
| Number of Poles | 3 |
| Phase | Three-phase |
| Trip Unit Technology | Thermal-magnetic |
| Trip Functions | Long-time, Instantaneous |
| Trip Range | 800–1500 A |
| Interrupting Capacity | 35 kA @ 480 VAC |
| Mounting Type | Bolt-on |
| Connection Type | Line/Load lug (lugs not installed) |
| Ambient Temperature Rating | 40 °C |
| Frame Size | FD |
| Dimensions (L×W×H) | 6.9 × 5.5 × 11.3 in |
Information About FXD63B125
The FXD63B125 is part of the Siemens Sentron low-voltage circuit breaker family, specifically within the FXD frame classification. It is engineered for 3-phase systems and calibrated for operation at an ambient temperature of 40 °C. The breaker incorporates a non-interchangeable trip unit that combines thermal and magnetic elements to respond to both overload and short-circuit conditions. It is UL listed for reverse-fed applications and is typically installed in distribution panels and switchboards where consistent fault protection and standardized Siemens compatibility are required.
Key Features:
- Sentron FXD series design: Built for Siemens low-voltage power distribution systems.
- Three-pole configuration: Supports three-phase electrical networks.
- Thermal-magnetic trip unit: Provides long-time and instantaneous protection.
- High voltage capability: Rated for operation up to 600 VAC.
- Standard interrupting capacity: Designed to interrupt high fault currents safely.
- Reverse-fed UL listing: Approved for line or load-side power connections.
- Fixed trip mechanism: Ensures consistent, non-adjustable protection characteristics.
The FXD63B125 delivers the reliability and precision required for three-phase circuit protection in commercial and industrial electrical distribution systems.