VEGA Capacitive electrodes EL Profibus PA - Manual (Page 25)

Capacitive electrodes EL - Profibus PA 25
Electrical connection
+
E1-
E2+
A1+
A2-
B62-30 W
IN OUT
1 2 5 6 7 8
PROFIBUS + -
EEx ia IIC
see certificate
on 8 7 6 5 4 3 2 1
R
Carrier rail
Profibus PA
e.g.
CAP E34 PA Ex
Overvoltage arresters for Ex systems
B62-30 W can be used as overvoltage arrester in Ex systems. In Ex areas, overvoltage ar-
resters must only be mounted in zone 1 or zone 2 (not in zone 0). You must differentiate
between overvoltage protection of intrinsically and non-intrinsically safe circuits.
For Ex systems, please note the installation conditions as well as the special prerequisites
cited in the respective conformity certificates.
B62-30 W: 9 … 36 V DC, max. 1 A
- Terminal row (IN)
generally unpr unpr unpr unpr unprotected otected otected otected otected side of the overvoltage arrester.
- Terminal row (OUT)
generally pr pr pr pr protected otected otected otected otected side of the overvoltage arrester.