The MARS 19007 is a trade-standard 68 potential relay designed for high-reliability motor starting in refrigeration and HVAC applications

To ensure longevity in harsh conditions

The radius is adjusted by loosening the swivel ball joint or rod connector and sliding it along the crankarm slot to the desired position between 1" and 2-3/4"

The 390-068 is engineered for the Powers 390 series pneumatic valves

Schneider Electric (Barber Colman) MA-305-500 Actuator 30067439-890 The MARS 19007 is aThe Schneider Electric (Barber Colman) MA 305 500 Actuator is a heavy duty 24V spring return actuator engineered for precise two position control in commercial HVACR systems. Delivering a rated 16 lb in torque, this direct coupled actuator is ideal for driving small dampers and valves that require a fail safe return to the normal position upon power interruption. The MA 305 500 features a rugged die cast aluminum housing with a NEMA 4 rating,