Motion Control & Drives


Intrinsically safe solenoid drivers

November 2005 Motion Control & Drives

Turck is offering its new MK72 intrinsically safe solenoid drivers to isolate and power loads in classified hazardous areas. These new models provide current and voltage that is much more specific to the needs of intrinsically safe solenoid manufacturers and users. This provides more usable power to the hazardous area.

The MK33-221Ex0-HLi/24VDC provides double the output of competitive devices without doubling the price. The economical and functional device can also be used with 3-wire devices. Other features include LED 'Power ON' indication and removable terminals that streamline installation and replacement.

The MK27 is available in 14 different models to provide output circuit voltages of 12, 16, 18, 22, 24 or 26 V d.c. and output current of 22, 32,5, 37,5, 40, 42.5, 45, 57,5, 62,5, 65, 67,5, or 70 mA, depending on model, to meet the needs for intrinsic safety applications. The output circuits and the 19-29 V d.c. inputs are galvanically isolated from each other, eliminating the need for external grounding.

Designed for OEMs and end-users with solenoid valves, the newest additions to the multimodel MK Series measures just 18 mm wide, offering superior packing density and requiring only half the space used by many drivers. Other features include green LED indication for 'Power ON', and yellow LED to indicate 'Output ON'. Full-size screw terminals and DIN-rail mounting allow quick and easy replacement. MK72 Drivers are FM and CENELEC approved for Class 1, Division 1, Group A.



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