DISCONNECTOR SWITCH NH00 / NH01
CHAVE SECCIONADORA

The disconnector loaded switch owns its mechanism end electrical contacts designed for a line interruption with or without an electrical current circulation. This kind of switch is equipped with a “preventing chamber of voltaic arc”. It is a device of load opening. It is a simple device that is only applied to low capacity motors. The electrical arc that happens in the closing moment causes the wear in its contacts.

These switches do not enable the automatic dismissal for overload. Associated to fuses it offers protection against shortings but it does not enable a distant command.

The unladen disconnector switch was projected to operate unladen, which means without circulation of an electrical current in its contacts. In this case the switching time of the contacts depends on the speed that the operator uses at the time of the maneuver.
The seccionadora switch is a meneuver mechanical device that in the opened position ensures a distance of isolation that satisfies especific security requests. A disconnector switch must be able to close or open a circuit when the stabilished or interrupted current is negligible or when it is not verified a significant variation in the tension between the terminals of each of its poles.

It is also capable of conducting current in normal conditions of the circuit and still conduct currents in unusual conditions of circuit for an specific time.

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