Operating Instructions
SILAS
Controller for Zones 2 and 22
Version 2.00
Page 11 of 28
SILAS_E_110806.doc Operating Instructions for the SILAS Controller
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Technical data are subject to change
7.
Technical Data for the SILAS System Components
7.1
SILAS
Controller
Types
: A7-3741-1..0/....
Marking
:
II 3G Ex nAC [pz] II T4
-20 °C
≤
T
a
≤
+ 60 °C
II 3G Ex nAC [pz] II T6
-20 °C
≤
T
a
≤
+ 40 °C
II 3D Ex tD A22 [pD] IP 54 T 85°C
-20 °C
≤
T
a
≤
+ 60 °C
Supply voltage
:
AC 230 V ± 10 %, 48-62 Hz or
AC 115 V ± 10 %, 48-62 Hz or
DC 24 V ± 10 %
Max. power consumption P
max
: 8
W
K 2 relay and K3
:
up to the maximum T
ambient
40°C: maximum AC 253 V; 5 A, cos phi 0.7
:
up to the maximum T
ambient
60°C: maximum AC 253 V; 0.5 A, cos phi 0.7
K1 relay
:
up to the maximum T
ambient
60°C: maximum AC 253 V; 0.5 A, cos phi 0.7
Permissible ambient temperatures
:
Storage
-20 °C to +60 °C
Operation
-20 °C to +40 °C (+60 °C)
Pressure range
:
0-25 mbar for all pressure switch values
Purging time
:
settable 0...60 minutes
Connecting terminals
:
maximum 2.5 mm²
Weight
: 1.2
kg
Protection class
: IP
65
