Page 191 - Motor_protection_and_control_Manual_motor_starters_ contactors

Electronic timers

Description
TEF3 frontal electronic timers are used for realizing timing function and are available in ON-delay and OFF-
delay versions.
1SBC101337F0010 Compact solution in cabinet compared to separate timers
TEF3 electronic timers are front-mounted and locked on AS/ASL contactors or NS/NSL contactor relays.
A mechanical indicator allows to show the state of the contactor.
Safe and cost-reduced wiring
TEF3-ON
TEF3 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
TEF3-ON or TEF3-OFF allow time-delayed functions up to 100 s in 3 distinct time ranges, independently 4
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.

Ordering details
1SBC101336F0010 For contactors, Time delay Delay Rated control Auxiliary Type Order code Weight
circuit voltage
type
contacts
contactor relays range
selected by
switch Uc Pkg
(1 pce)
TEF3-OFF V 50/60 Hz or DC kg
AS09 ... AS16 0.1...1 s ON-delay 24...240 1 1 TEF3-ON 1SBN021012R1000 0.065
ASL09 ... ASL16 1...10 s
NS, NSL 10...100 s OFF-delay 24...240 1 1 TEF3-OFF 1SBN021014R1000 0.065

Main dimensions mm, inches
128.1 5.04"
72.5 2.85" 10 35 1.38"
45 1.77" 2 x
7 0.28" 0.39" M4 8-32 UNC ø 4.2 0.17"
1.1 0.05"
35 mm EN/IEC 60715 5.5 0.22"
68 2.68" 44.2 1.74" 44.4 1.75" 60 2.36" 50 1.97"
1SBC101504S0201

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