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

Capacitive electrodes EK - 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 arrester for Ex systems
The unit B62-30W can be used as overvoltage arrester in Ex systems. In the Ex area, the
overvoltage arresters must only be installed in zone 1 and 2 (not zone 0). You must
differentiate between overvoltage protection of intrinsically safe and non intrinsically safe
circuits.
For Ex systems, please note the installation regulations and the special prerequisites cited in
the respective conformity certificates.
B62-30 W: 9 … 36 V DC, max. 1 A
- terminals (IN)
unprotected side of the overvoltage arrester.
- terminals (OUT)
protected side of the overvoltage arrester.