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Siemens 3TK2845 Manual page 46

Safety relays, multifunction device
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Mounting, Wiring, Initial Start-up
Warning
Dangerous electrical voltage! Can result in electrical shock and burns. Shut off
all electricity prior to working on the system and device.
Notice
Depending on the ambient conditions, the devices must be installed in
switchgear cabinets exhibiting degree of protection IP23, IP43 or IP54.
Notice
The actuators/sensors must be actuated at least once a year. (Fault detection
according to IEC 61508)
4-2
3TK2845 Multifunction Device Manual
GWA 4NEB 926 2087-22 DS 01

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