Pepperl+Fuchs WE 77/Ex-2 230V Switch Amplifier
General specifications
Signal typeDigital Input
Supply
Connectionterminals 17, 18
Rated voltage198 ... 253 V AC ; 45 ... 65 Hz
Power dissipation2.5 W
Power consumptionapprox. 3.2 VA
Input
Connection sidefield side
Connectionterminals 1-, 2+; 8+, 9-
Rated valuesacc. to EN 60947-5-6 (NAMUR), see manual for electrical data
Open circuit voltage/short-circuit currentapprox. 8 V DC / approx. 8 mA
Switching point/switching hysteresis1.2 ... 2.1 mA / approx. 0.2 mA
Pulse/Pause ratiomin. 0.5 ms / min. 0.5 ms
Line fault detectionbreakage I ≤ 0.1 mA
Output
Connection sidecontrol side
Connectionterminals 10, 11, 12; 13, 14, 15
Outputsignal ; relay
Contact loading253 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 load
Energized/De-energized delayapprox. 10 ms / approx. 20 ms
Mechanical life107 switching cycles
Transfer characteristics
Switching frequency< 10 Hz
Galvanic isolation
Input/Outputreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Input/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output/power supplybasic insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Indicators/settings
Display elementsLEDs
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Low voltage
Directive 2014/35/EUEN 61010-1:2010
Conformity
Degree of protectionIEC 60529
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 410 g
Dimensions60 x 104 x 110 mm (2.4 x 4.1 x 4.3 inch) (W x H x D) , housing type W2
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