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Masterpact MTZ—Electromagnetic Disturbances

Masterpact MTZ devices have protection against:

  • Overvoltages caused by devices that generate electromagnetic disturbance.

  • Overvoltages caused by atmospheric disturbance or by a distribution-system outage (for example, a lighting system outage).

  • Devices emitting radio waves (for example, radio transmitters, walkie-talkies, or radar).

  • Electrostatic discharge produced by users.

Masterpact MTZ devices have successfully passed the electromagnetic-compatibility tests (EMC) defined by IEC 60947-2, appendix F.

The devices have passed the above tests and therefore:

  • Nuisance tripping from electromagnetic interference does not occur.

  • Tripping times are respected.

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