Mismatch Protection

Description

Mismatch protection allows the installation of a MasterPacT MTZ2/MTZ3 circuit breaker only in a chassis with compatible characteristics.

Mismatch protection offers 35 different combinations that can be selected so that a circuit breaker can only be mounted on a chassis with the matching combination.

Accessory

The use of mismatch protection is optional. One mismatch protection accessory is required for each circuit breaker.

For information on the accessory installation, consult the instruction sheet available at Schneider Electric website: NVE35465.

Pin Location of Mismatch Protection

The following illustration shows the pin location on the chassis and circuit breaker, respectively.

The pin combination selected on the chassis must correspond to the pin combination selected on the circuit breaker (see following table). For example, the combination ABCD on the chassis corresponds to the combination 567 on the circuit breaker.

Pins on the chassis are labeled A, B, C, D, E, F, G.

Pins on the circuit breaker are labeled 1, 2, 3, 4, 5, 6, 7.

Recommended Pin Combinations