Model: WE 77/Ex-22-channelControl circuit EEx ia IIC115 V AC supply voltageReversible mode of operationLead breakage (LB) monitoring1 relay contact output (change-over contact) per channelSignal type Digital InputConnection terminals 17, 18Rated voltage 103.5 ... 126 V AC , 45 ... 65 HzPower dissipation 2.5 WPower consumption approx. 3.2 VAInputConnection side field sideConnection terminals 1-, 2+; 8+, 9-Rated values acc. to EN 60947-5-6 (NAMUR), see system description for electrical dataOpen circuit voltage/short-circuit current approx. 8 V DC / approx. 8 mASwitching point/switching hysteresis 1.2 ... 2.1 mA / approx. 0.2 mAPulse/Pause ratio min. 0.5 ms / min. 0.5 msLine fault detection breakage I ≤ 0.1 mAOutput Connection side control sideConnection terminals 10, 11, 12; 13, 14, 15Output signal ; relayContact loading 253 V AC/2 A/500 VA/cos φ min. 0,7; 125 V AC/4 A/500 VA cos φ min. 0,7; 40 V DC/2 A/80 W ohmic loadEnergized/De-energized delay approx. 10 ms / approx. 20 msMechanical life 107 switching cyclesSwitching frequency < 10 HzDisplay elements LEDsDegree of protection IEC 60529Ambient temperature -20 ... 60 °C (-4 ... 140 °F)Mechanical specificationsDegree of protection IP20Connection screw terminalsMass approx. 410 gDimensions 60 x 104 x 110 mm (2.4 x 4.1 x 4.3 inch).
DIFACO ، ایران - تهران ، تلفن : 02188343692-3