FIELD: electricity.
SUBSTANCE: invention relates to electric switching device. Switching device has first and second switch contact pieces (1) and (2). First switch contact piece (1) has guide portion (10). First switch contact piece (1) is connected to drive device via a kinematic chain, said guide portion (10) of first switch contact piece (1) being guided on guide path (9). Guide portion (10) and guide path (9) each have bearing surface (12), at least one of bearing surfaces (12) being convexly curved. Guide portion (10) and guide path (9) are part of a rotatory-rectilinear pair connected to kinematic chain.
EFFECT: enabling use of low-power drive.
14 cl, 19 dwg
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