TEF4 Frontal Electronic Timers Are Used For Realizing Timing Function And Are Available In ON-Delay And OFF-Delay Versions. Compact Solution In Cabinet Compared To Separate Timers. TEF4 Electronic Timers Are Front-Mounted And Locked On AF Contactors Or NF Contactor Relays. A Mechanical Indicator Allows To Show The State Of The Contactor. Safe And Cost-Reduced Wiring. TEF4 Electronic Timers Are Supplied By A Direct Plug-In Parallel Connection To The Coil Terminals A1 – A2 Of The Contactor Or Contactor Relay. A Varistor Is Integrated On The Timer To Offer A Built-In Protection Against Surges In The Contactor Coil. Available For A Wide Control Voltage Range 24…240 V AC/DC. TEF4-ON Or TEF4-OFF Allow Time-Delayed Functions Up To 100 S In 3 Distinct Time Ranges, Independently Of The Control System. The Time Delay Ranges Are Selected By A Switch And The Time Delay Can Be Adjusted By Means Of A Rotary Switch. The Timing Function Is Activated By Closing Or Opening The Device On Which The Timer Is Mounted. The OFF-Delay Version Operates Without Additional Control Supply.

• · Electronic Timer