Planetary gear limit switch STROMAG

Planetary gear cam limit switches
Series 51

Standard switches
51 series geared cam limit switches are universal mechanical switching devices that have been designed for use in conjunction with cam discs based on a specific angle of rotation for indication of a large number of shaft revolutions. These cam discs serve to operate mechanical contacts. Geared cam limit switches are used wherever specific ranges of travel cannot be directly limited by switchgears but only indirectly via measurements of the angle of rotation. A classic example of such an application is limitation of the hook travel of crane hoisting gear.

Especially where there is a danger to persons and the use of positive opening switching contacts is required according to VDE 0660 T200, EN 60947 T5-1, IEC 947-5-1, the use of geared cam limit switches is the most efficient alternative.

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