Description

COMMUTATOR

COMMUTATOR :

A commutator is a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit.

It consists of a cylinder composed of multiple metal contact segments on the rotating armature of the machine.

Two or more electrical contacts called “brushes” made of a soft conductive material like carbon press against the commutators , making sliding contact with successive segments of the commutators as it rotates.

Specifications:

• For use in circuits, where a rapid changeover of polarity is required.
• The switch comprises a rotatable spring loaded beam of insulating plastic.
• With two brushes each connected to 4 mm socket terminals.
• All brushes and contact strips of laminated phosphor bronze brushes ensuring good contact and long life.

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