Page 588 - Motor_protection_and_control_Manual_motor_starters_ contactors

Electronic timers

Description
TEF5 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
TEF5 electronic timers are front-mounted and locked on contactors.
A mechanical indicator allows to show the state of the contactor.
TEF5 electronic timers are supplied by direct wiring to the coil terminals A1 - A2 of the contactor or con-
1SBC101396F0014 tor coil.
tactor relay. A varistor is integrated on the timer to offer a built-in protection against surges in the contac-
Available for a wide control voltage range 24...240 V AC/DC
TEF5-ON or TEF5-OFF allow time-delayed functions up to 100 s in 3 distinct time ranges, independently
TEF5-OFF 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.
5
Ordering details
For contactors, Time delay Delay Rated control Auxiliary Type Order code Weight
contactor relays range type circuit voltage contacts
selected by Uc Pkg
switch (1 pce)
V 50/60 Hz or DC kg
UA16 ... UA75 0.1...1 s ON-delay 24...240 1 1 TEF5-ON 1SBN020312R1000 0.065
GA75, GAE75 1...10 s
10...100 s OFF-delay 24...240 1 1 TEF5-OFF 1SBN020314R1000 0.065

1SBC101675S0201 - Rev. B

5/388 | ABB