Johnson Pump 0.3454.003 Electro-Magnetic Clutch, 12V, 1x B Pulley

With an electro-magnetic clutch you will have pumping power whenever needed, at a push of a button, without being at the pump. Combined with a vacuum switch (recommended for bilge pump application), the clutch will automatically disengage whenever the pump starts priming air, thereby preventing dry running and pump damage. Automatically controlled pumps are in sizes from 1" to 2" (20 l/min to 625 l/min), with clutches in 12 or 24 volts. Wearing parts are easily replaceable and service kits are for all standard models. Vacuum Switch as extra accessory, see page 44. Clutch to be ordered separately.