Air Conditioning. Maintenance-free, low power consumption, rotary damper/louvre actuators, compatible with all leading makes of HVAC controls. Minimum life of 60000 operations Stall torque technology requires no end switches Adjustable U-clamp accepts round or square shafts Visible position indicator Pushbutton manual override Direction change switch IP54 rated 150s motor run time 1m pre-wired cable Stock nos. < 504-1236') 504-1236/ & < 504-1242') 504-1242/ feature an integrated 1xSPDT 3 (0.5)A 250Vac auxiliary switch Optional auxiliary switch (stock no. < 504-1545') 504-1545 suitable for use with LM, NM, SM and GM damper actuators, features 2xSPDT switches rated at 3 (0.5)A 250Vac and supplied with 1m of cable