200a 4p Tpn Mccb 50ka Fixed Type

The 200a 4p tpn mccb 50ka fixed type means the molded case circuit breaker has 200A rated current, 4 poles or 3 poles + neutral, 50kA Icu which means the ultimate breaking capacity of the 200a 4p tnp mccb is 50 kA, and stationary installation type, which different with plug-in type.

The 50kA of ultimate breaking capacity MCCB normally is installed in the output panel with a medium large capacity distribution transformer such as 1600 kva to 2000 kva. For example the sub distribution systems in data centers or hospitals which installed a air circuit breaker in the input panel.

Besides the 50 kA Icu, the 200A molded case circuit breaker also has the option of 35 kA and 85 kA in Wenzhou XiFa electric power equipment Co., Ltd to fits the different demand of loading. The larger value of Icu means the more serious protection Level on circuit safety.

Product Parameter:

FAQ:

Q: what is the advantages of a 200a 4p tpn mccb 50ka fixed type and a 200a mccb plug in type?

A: the advantage of a Plug in type 200A mccb:

1. Quick installation and replacement: The 200a mccb plug in type can be easily plugged in or removed without rewiring, reducing downtime.

2. Convenient maintenance: a Faulty 200a mccb plug in type can be replaced quickly, improving system reliability.

3. Flexibility: Suitable for systems where a 200a mccb plug in type may need to be reconfigured or replaced frequently.

4. Minimized wiring errors: Plug in bases reduce the risk of incorrect connections compared to manual wiring.

the advantage of a 200a mccb fixed type:

1. Lower cost: a 200a mccb fixed type is generally more economical than plug in type.

2. High mechanical robustness: Provides a solid and permanent installation with secure connections.

3. Compact design: Requires less installation space in some switchboards.

4. Widely used: More common in industrial and utility applications, making them easy to source and standardize.

Q: What is the difference between the rated current (In) and the frame current (Inm)?

A: The rated current (In) is the maximum continuous current the molded case circuit breaker can carry without tripping. The frame current (Inm) refers to the maximum current rating that the MCCB frame can accommodate with different trip units.

For example if the rated current of 200a 4p tpn mccb 50ka fixed type is 200A, the frame current could be 250A or 400A, but it cannot be 125 A or 160 A since the frame cannot carry 200A.

Q: How to select the breaking capacity (kA) of a fixed type 200A MCCB ?

A: The breaking capacity must be higher than the prospective short circuit current at the installation point. Typical values:

1. 35 kA: Small commercial or residential distribution boards.

2. 50 kA: Medium industrial applications.

3. 85 kA: Critical loads such as hospitals, data centers, airports, or large industrial plants.