SILAS controller BARTEC A7-3741-1110/1000 ATEX



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Ex II 3G Ex nA nC [pzc] IIC T4 Gc
-20 °C to +60 °C
Ex II 3G Ex nA nC [pzc] IIC T6 Gc
-20 °C to +40 °C
Ex II 3D Ex tc [pzc] IIIB T85 °C Dc
Ex nA nC [pzc] IIC T4 Gc
-20 °C to +60 °C
Ex nA nC [pzc] IIC T6 Gc
-20 °C to +40 °C
Ex tc [pzc] IIIB T85 °C Dc

Ambient temperature

-20 °C to +60 °C / T4 (+40 °C / T6)


The SILAS Controller serves to monitor electrical equipment set up in accordance with the “pressurised apparatus with leakage compensation” process.

It is a complete safety device, which consists of a type A7-3741-1110/.00. SILAS Controller and a type 17-51P3-1604 pressure control device.

An optional digital purging gas valve to supply protective gas is also necessary.

Technical data *
Protection class min. IP 54
Pressure 0 to 25 mbar for all pressure switching levels
Purging time 0 to 60 minutes (adjustable)
Storage temperature -20 °C to +60 °C
Weight 1.2 kg
Display - LCD display
- 1 power switch
- 1 BCD switch for selecting parameters
- 3 buttons for changing parameters
- 3 LEDs for displaying switching relay status
- 1 bypass
Optional with viewing glass
Voltage AC 230 V / 50 to 60 Hz
AC 115 V / 50 to 60 Hz
DC 24 V
Power max. 8 W
Relay 1. Alarm relay (voltage-free)
2. Control relay for purge valve
3. Signal relay for status transmission

*Refer to the documentation for more detailed information

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