| Artikelbeschreibung | STW81V, control for suction plants, AC/DC 90 - 240 V / current relay for automatic start of suction plants 8 inputs for current transformers STWA1 or STWA1H, contacts or current sensor S1 single evaluation of inputs for control of slide valves (K1-8) or evaluation for start of motor at suction (K9) operating value < 1 A for all inputs (STWA1 and STWA1H only) switch off delay for suction K9 adjustable 0...60 s switch off delay slide valves K1-8 10 s, last slide valve K9 + 20 s relays 9 x change-over contacts display of operating status with leds housing width 140 MM, mounting height 55 MM snap-on mounting on DIN-rail or with screws (option) supply voltage AC/DC 90-240 V |