1.0General Energy Retailhttps://retail.energy-holding.com.ua/en/s devhttps://retail.energy-holding.com.ua/en/blog/author/infodevocean-pro/TEF4-ON - General Energy Retailrich600338<blockquote class="wp-embedded-content" data-secret="gxNU09scQS"><a href="https://retail.energy-holding.com.ua/en/product/tef4-on-2/">TEF4-ON</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://retail.energy-holding.com.ua/en/product/tef4-on-2/embed/#?secret=gxNU09scQS" width="600" height="338" title="“TEF4-ON” — General Energy Retail" data-secret="gxNU09scQS" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
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https://retail.energy-holding.com.ua/wp-content/uploads/2025/12/61eafbf75083a4e4b79b0317133e96b8.webp400400TEF4 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 timersTEF4 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/DCTEF4-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.