FIELD: machine building.
SUBSTANCE: power contact device is intended for use in polarity switches, contactors and power switches. Device comprises fixed contact element (11) and movable contact element (12), resistant to short circuit current, made in form of arranged next to each other coiled spiral turns in open position face each other. Each turn is made of magnetically and electrically conductive material, to form a single part, acting as a power contact and as a winding, generating magnetic field and a magnetic circuit, reinforcing and conducting said magnetic field.
EFFECT: technical result is creation of compact power contact device with high electrodynamic compensation, not depending on intensity of current.
11 cl, 5 dwg
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