Schneider Electric (Barber Colman) MK-4621-422 Actuator Els PW 29614 If your resistance-to-temperature readings are

If your resistance-to-temperature readings are out of spec according to the nominal resistance table

Key Benefit List:

reducing field labor time

providing robust HVAC relay performance

As an OEM S1-028-12385-700 replacement

Schneider Electric (Barber Colman) MK-4621-422 Actuator Els PW 29614 If your resistance-to-temperature readings areThe Schneider Electric MK 4621 422 is a heavy duty pneumatic valve actuator designed for precise proportional control in HVAC systems. Engineered with an 11 square inch effective area, this spring return actuator provides reliable linear movement for 1 2 inch nominal stroke applications. It operates on a specific 10 to 11. 25 PSI nominal spring range, making it ideal for sequencing and precise throttling of steam or water valves. The rugged NEMA 1