Key transfer system


SVE - Key-Selector switch - Interlocking equipment

SVE - Key-Selector switch - Interlocking equipment


  • Thermoplastic enclosure
  • Protection class IP65

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SVM1 - key distribution station

SVM1 - key distribution station


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SHGV/ESS21 - Key-operated selector switch

SHGV/ESS21 - Key-operated selector switch


  • Use in applications without dangerous run-on movements resp. run-on movements less than the key transfer time
  • HS locking system-compatible versions possible
  • Key switch including mounting flange and contact element

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SHGV - Guard locking device

SHGV - Guard locking device


  • Aluminium enlosure
  • Protection class IP65

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Application:
The SHGV range is particularly suitable in more complex production systems and plants to protect divided maintenance and service doors which are used only rarely.
Other applications include situations in which an electrical shock is possible, applications with higher ambient temperatures, specific uses in extreme ambient conditions and in chemical and process engineering in view of the explosion protection feature (see also Explosion-protected switchgear).

Design and mode of operation:
The fundamental functional characteristic of a Trapped key system is that, depending on the operating state of the machine control system, the key is trapped and cannot be withdrawn either in automatic mode (guard locked) in a control element (e.g. key -operated selector switch) or, in the guard locking device, in a key tumbler cylinder, if the guard is open (in an electrically de-energised state).

The principle feature of the system is that the removable key is trapped either in the guard locking or in the key-operated selector switch.

Ranges SHGV, SVE, SVM