4 pole 125 amp circuit breaker
A 4-pole 125 amp circuit breaker is a type of electrical breaker that is designed to protect a 4-wire electrical circuit from overcurrent and short-circuit conditions. Here are some key characteristics of a 4-pole 125 amp circuit breaker:
Poles: A 4-pole circuit breaker has four separate poles, each of which is designed to handle a specific function:
- Two poles (L1 and L2) are used for the line voltage (e.g. 120/240V)
- One pole (N) is used for the neutral wire
- One pole (G) is used for the ground wire
Ampere Rating: The 125 amp rating indicates that the circuit breaker is designed to interrupt a maximum current of 125 amperes in the event of a fault. This means that it can handle a maximum load of 125 amps without tripping.
Applications: 4-pole 125 amp circuit breakers are commonly used in a variety of applications, including:
- Residential and commercial electrical distribution systems
- Industrial power distribution systems
- Data centers and server rooms
- Medical facilities and hospitals
Features: Some common features of 4-pole 125 amp circuit breakers include:
- High interrupting capacity (HIC) to handle high fault currents
- Low let-through energy to minimize damage to equipment
- Fast tripping times to quickly interrupt fault currents
- High reliability and durability to minimize downtime
- Compatibility with a variety of electrical systems and equipment
Types: There are several types of 4-pole 125 amp circuit breakers available, including:
- Molded case circuit breakers (MCCBs)
- Air circuit breakers (ACBs)
- Vacuum circuit breakers (VCBs)
- Arc fault circuit breakers (AFCBs)
When selecting a 4-pole 125 amp circuit breaker, it's important to consider factors such as the type of electrical system, the maximum load current, and the level of fault protection required. It's also important to follow all relevant electrical codes and standards, such as the National Electric Code (NEC) and the International Electrotechnical Commission (IEC).