Description

PEPPERL+FUCHS – Switch Amplifier WE77/Ex-2 230V

Manufactured:  Pepperl+Fuchs

Product Type:  Switch Amplifier 

Model:  WE77/Ex-2 230V

 

General Information

• 2-Channel
• Control circuit EEX ia IIC
• 230V AC supply voltage
• Reversible mode of operation
• Lead breakage (LB) monitoring
• 1 relay contact output (change-over contact) per channel

 

Technical Datasheet

General Specification

• Signal type:  Digital Input

Supply

• Connection:  terminal 17, 18
• Rated voltage:  198 …… 253 V AC ; 45 …… 65 Hz
• Power dissipation:  2.5W
• Power consumption:  approx. 3.2 VA

Input

• Connection side:  field side
• Connection:  terminal 1-, 2+; 8+, 9-
• Rated values:  acc. to EN 60947-5-6 (NAMUR)
• Open circuit voltage/short-circuit current:  approx.8 V DC / approx. 8 mA
• Switching point/switching hysteresis:  1.2 …. 2.1 mA / approx. 0.2 mA
• Pulse/Pause ratio:  min. 0.5 ms / min. 0.5 ms
• Line fault detection:  breakage I ≤ 0.1 mA

Output

• Connectiob side:  Control side
• Connection:  terminal 10, 11, 12; 13, 14, 15
• Output:  signal; relay
• Energized/De-energized delay:  approx. 10 ms / approx. 20 ms
• Mechanical life:  10 ^{7 Switching cycles}

Transfer characteristics

• Switching frequecy:  ≤  10 Hz

Indicators/ setting

• Display element:  LEDs

Conformity

• Degree of protection:  IEC 60529

Ambient conditions

• Ambient temperature:  -20 … 60 °C (-4 …. 140 °F)

Mechanical specifications

• Degree of protection:  IP20
• Connection:  screw terminal
• Mass:  approx. 410g.
• Dimension:  60*104*110 mm. (2.4*4.1*4.3 inch) (W*H*D), housing type W2