Mechanical pressure switch K77

differentialNCNO

K7” adjustable pressure switches allow the commutation of a micro-switch with exchange contacts. The switching point is adjustable by means of an adjustment screw protected by a cap or in the external version K7P through graded knob with locking screw. The compact, rugged construction provides mechanical stops of the spring is that the microswitch from over-pressure. Technical features: Body: 30 mm square aluminum parts in contact with galvanized steel Assembly: in every position with threaded connection from 1/4” BSPF Working temperature: from - 20°C to + 80°C Switching frequency: 120 cycles/min Operating point: adjustable through internal screw protected by a security cap or knob with locking screw. Switching accuracy: ±3% of the end of scale at 20°C Fixed hysteresis value: ~ 15% of the end of scale at 20°C Weight: 0,3 Kg Mechanical life:106cycles at 70 bar(1000 psi)at 20°C Electric Features: - Maximum load: 5 Ampère at 250 Volt AC - 0.25 Ampère a 125 Volt DC (see dedicated page) - Exchange contacts NO and NC - Electric connection according to DIN 43650 - Electric protection according to DIN 40050: IP65 Spare parts: see dedicated page Also available: - K7X with fluid connection port in AISI 316 - Seals in Viton, EPDM, PTFE - Micro switches with gold plated contacts (instead of silver-plated as in the standard execution) - Adaptor for flange fixing (see adaptors page) - Electric connector with light signal of insertion - M12 connector in accordance to IEC60947-5-2 - Different threads of attack