The 4221/4222 switchbox can be used with linear and quarter turn actuators, e.g. in connection with diaphragm and globe valves, butterfly and ball valves. An integrated 3/2 way pilot valve enables all normally open and normally closed actuators to be controlled. An integrated displacement sensor monitors the end posi-tions and the travel. The operating voltage is supplied to the device via a M12 connector from a bus cable. There is no need for time-consuming wiring. The pneumatic connectors can either be T or angled connectors. A manual override is integrated as standard. Optical position indication is effected by light emitting diodes. The electrical protection class is IP 65. The device can be operated externally without taking off the housing cover and it can be fitted to linear valve actuators by standard thread and to quarter turn actuators by mounting bracket.
Gemü
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Further information cpp-233
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