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NGB3B125B
The NGB3B125B from Siemens is a molded case circuit breaker offering a rated current of 125 Amperes. This unit is suitable for 3-phase applications and is designed for an operational voltage of 600 Volts AC.
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Technical specifications for NGB3B125B
| Manufacturer | Siemens |
|---|---|
| Product Type | Molded Case Circuit Breaker |
| Product Line | VL Series |
| Part Number | NGB3B125B |
| UPC | 783643414396 |
| Frequency Rating | 50 / 60 Hertz |
| DC Voltage Rating | 250 Volts DC |
| Interrupting Capacity @ 250V DC | 14,000 Amperes |
| Interrupting Rating @ 480V | 25 kA at 480Y/277V AC |
| Interrupting Rating @ 600V | 14 kA at 600Y/347V AC |
| Interrupting Capacity @ 240V AC | 65,000 Amperes |
| Number of Poles | 3 Poles |
| Amperage Rating (Rated Current) | 125 Amperes |
| Rated Operational Voltage (AC) | 600 Volts AC |
| Phase | 3 Phase |
| Trip Unit Technology | Thermal-Magnetic |
| Recommended Wire Size Range | 8 AWG to 1/0 AWG |
| Mounting Type | Bolt-On, Panelboard Mount |
Siemens has engineered the NGB3B125B, a robust molded case circuit breaker tailored for critical applications. It operates within a frequency range of 50 to 60 Hertz and is designed to handle up to 125 Amperes in a 3-phase system. The operational voltage capability reaches a maximum of 600 Volts AC, which is complemented by its versatility in DC applications with a voltage rating of 250 Volts.
The interrupting capacities include commendable figures, such as 65,000 Amperes at 240 Volts AC, 25 kA at 480Y/277 Volts AC, and 14 kA at 600Y/347 Volts AC. These ratings reflect the circuit breaker's ability to respond to fault conditions efficiently without compromising electrical safety.
Incorporating thermal-magnetic trip technology, this breaker provides effective overload and short circuit protection. A bolt-on mounting style allows for easy installation within panel boards, providing added convenience during setup. Recommended wire sizes range from 8 AWG to 1/0 AWG, giving flexibility in connectivity options. Overall, the NGB3B125B is a reliable choice for maintaining safe operations in demanding electrical environments.
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