Magnetic Switch MSI 2

Magnetic switches are used as switching members for movable objects such as hoisting cages, shuttle cars, monorails, and similar means of conveyance. They are used for controlling and monitoring intrinsically safe circuits.

Structure
The housing is made of non-corrosive, non-magnetic red brass and painted blue. Type of protection according to EN 60529: IP 54.
The switching element consists of two magnetic proximity switches with one changeover contact (reed contact) and installed in the housing in a shock-free manner by means of vibration absorbers. The connecting cables of the proximity switches are conducted to a six-pole terminal strip.

MSI 2 C method of working (monostable)
The changeover contacts of the proximity switch actuate if a transmission magnet is within the detecting range of the magnetic switch. When a Type A transmission magnet is used, the magnetic switch actuates up to a maximum distance of 18 cm; when a Type B transmission magnet is used, up to a maximum distance of 12 cm.

MSI 2 F method of working (bistable)
The proximity switch has two stable home positions. The changeover contacts actuate according to the polarity of the transmission magnets moving by the magnetic switch into one or the other home position. The contacts stay in this position until a transmission magnet with reversed polarity or the same transmission magnet is moved by the magnetic switch.

Cable gland
Two M20 boreholes with an M20 cable gland and an M20 blind plug are usually located on the lower front of the magnetic switch