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The HGB3B125B from Siemens is a three-pole molded case circuit breaker designed for efficient circuit protection. It supports a rated current of 125 A and features both long-time and instantaneous trip functions for reliable operation.
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| Manufacturer | Siemens |
|---|---|
| Product Type | Molded Case Circuit Breaker |
| Product Line | VL Series |
| Part Number | HGB3B125B |
| UPC | 887621219901 |
| Trip Functions | Long-time, Instantaneous |
| Protection Type | Thermal Magnetic |
| Interrupt Rating (600Y/347V) | 14 kAIC |
| Terminal Type | Load-side Lug |
| Phase Type | 3-Phase |
| Interrupt Rating (480Y/277V) | 35 kAIC |
| Wire Size Range | 8–1/0 AWG Cu/Al |
| Rated Current | 125 A |
| Mounting Type | Panelboard |
| Poles | 3 Poles |
| Voltage Rating | 600 Vac |
| Connection Type | Bolt-on |
| Frequency | 50/60 Hz |
The Siemens HGB3B125B molded case circuit breaker is essential for ensuring the safety and reliability of electrical systems. Rated for a maximum current of 125 A, it operates effectively within a voltage rating of 600 Vac. This model is designed for three-phase applications and incorporates thermal magnetic protection. Its trip functionalities include both long-time and instantaneous options, enhancing its ability to react appropriately to various electrical conditions.
With an interrupt rating of 35 kAIC at 480Y/277 V, it provides robust protection against fault conditions, while at 600Y/347 V, the interrupt rating stands at 14 kAIC. The terminal type is load-side lug, facilitating easy connection to the electrical system. This breaker can accommodate wires ranging from 8 AWG to 1/0 AWG for both copper and aluminum setups.
The HGB3B125B is easily mounted on panelboards and features bolt-on connections for secure installation. Designed to work within a frequency range of 50 to 60 Hz, this circuit breaker ensures solid performance across industrial applications. Overall, the HGB3B125B delivers a combination of reliability and safety in circuit protection.