Schmersal Group: explosion-proof version of trapped key system
Schmersal Group: explosion-proof version of trapped key system. Schmersal Group offers an explosion-proof version of its SHGV-system.
The central units of the series for six or ten keys are suitable for use in Ex Zones 1 and 2 (Gas-Ex) or 21 and 22 (Dust-Ex), as are the interlocking devices for the safety guards of the Ex-SHGV type.
Furthermore, individual key-operated selector switches (EX-SHGV/ ESS), which are certified for the Ex Zones 2 (Gas-Ex) and 22 (Dust Ex) and which enable interrupting or switching off automatic mode, are available for fitting onto the machine.
With these components, the machine builder can set up a robust complete system, which can be operated smoothly.
As the safety-relevant information is transferred through the key, no electric signal wires are required – an essential advantage in potentially explosive areas.
SPS/IPC/Drives, Hall 9, Stand 460
