Compact, safe, self-monitoring

SCHLEGEL expands its MK/MKP series by two new contact blocks

With the new contact blocks MKTOSFE and MKPTOSFE of the MK/MKP series, Georg Schlegel GmbH & Co. KG from Duermentingen launches two compact solutions that offer even more safety for humans and machines in industrial areas thanks to their integrated failure switch-off. The failure switch-off enables a continuous monitoring of the connection between the emergency-stop and the contact block.

this self-monitoring function of these modules reliably detects two critical cases of failure: If the emergency-stop has not been mounted correctly, the system prevents the machine start. If the connection is being interrupted during operation – for example due to mechanical damage – a shutdown signal is automatically activated. The machine will be immediately brought into a safe state and can only be restarted after successful trouble-shooting.

The new models offer different types of connections: The MKTOSFE with screw connection enables a classical wiring, whereas the MKPTOSFE with Push-In connection makes a quick, tool-less installation possible – this is ideal for time-saving assembly processes. Both types combine a NC contact with positive opening and a NO contact which acts as the monitoring contact of the failure switch-off. They can be mounted to the emergency-stop direclty by using the module holder MKHR_3 and can be combined with additional NC and NO modules.

With electrical characteristics of 240 V / 3 A AC resp. 24 V / 2 A DC, according to IEC EN 60947-5-1, a lifetime of 100,000 switching cycles and an operating temperature range of -30 °C to +85 °C, the new contact blocks fulfil the highest requirements for safety and reliability.

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