Scheider nw63h1rr4mf2e air circuit breaker

A very specific question!

The Schneider NW63H1RR4MF2E is an air circuit breaker (ACB) manufactured by Schneider Electric, a well-known company in the electrical industry.

Here's a breakdown of the code:

• NW: This is the product family code, which stands for "Nouvelle Welle" (French for "New Wave"), indicating that it's a part of Schneider's ACB range.
• 63: This is the breaking capacity (kA) of the circuit breaker. In this case, it's 63 kA, which means it can handle a maximum current of 63,000 amps.
• H1: This is the voltage rating of the circuit breaker, which is 1,000 volts (V) AC.
• RR: This is the type of circuit breaker. In this case, RR stands for "Résistance Réductrice" (French for "Reducing Resistance"), which means it's a type of ACB that reduces the resistance of the circuit.
• 4: This is the number of poles (connections) on the circuit breaker. In this case, it's a 4-pole circuit breaker, meaning it has four separate connections for the hot wires (L1, L2, L3, and N).
• MF2E: This is the type of magnetic trip unit (MTU) used in the circuit breaker. MF2E stands for "Mécanisme de Fausse Marche 2 Étapes" (French for "False Trip Mechanism 2 Stages"), which means it's a type of MTU that has two stages of tripping.

In summary, the Schneider NW63H1RR4MF2E is a 4-pole, 63 kA, 1,000 V AC air circuit breaker with a reducing resistance and a 2-stage magnetic trip unit.