© 2016 Littelfuse Protection Relays & Controls
Time Delay Relays
Dedicated - Single Shot
www.littelfuse.com/
Rev: 1-A-062116
www.littelfuse.com/tdus
TDUS SERIES
L1 N/L2
Single Shot Timer
Description
The TDUS Series combines digital timing circuitry with universal
voltage operation. Voltages of 24 to 240VAC and 12 to 24VDC
are available in three ranges. The TDUS Series offers DIP switch
selectable time delays ranging from 0.1 seconds to 102.3
minutes in three ranges. Its 1A rated output, ability to operate
on multiple voltages, and wide range of switch selectable time
delays make the TDUS Series an excellent choice for process
control systems and OEM equipment.
Operation (Single Shot)
Input voltage must be applied before and during timing. Upon
momentary or maintained closure of the initiate switch (leading
edge triggered), the output energizes for a measured interval of
time. At the end of the delay, the output de-energizes. Opening
or reclosing the initiate switch during timing has no affect on
the time delay. The output will energize if the initiate switch is
closed when input voltage is applied.
Reset: Reset occurs when the time delay is complete and the
initiate switch is opened. Loss of input voltage resets the time
delay and output.
Features & Benefits
FEATURES BENEFITS
Microcontroller based Repeat Accuracy + / - 0.1%
Compact design Allows flexiblility for OEM applications
1A steady, 10A inrush
solid-state output
Provides 100 million operations in typical conditions.
Totally solid state
and encapsulated
No moving parts to arc and wear out over time and
encapsulated to protect against shock, vibration,
and humidity
Accessories
P0700-7 Versa-Knob
Designed for 0.25 in (6.35 mm) shaft of
Versa-Pot. Semi-gloss industrial black finish.
P1015-64 (AWG 14/16)
Female Quick Connect
These 0.25 in. (6.35 mm) female terminals are
constructed with an insulator barrel to provide
strain relief.
P1015-18 Quick Connect to Screw Adapter
Screw adapter terminal designed for use with
all modules with 0.25 in. (6.35 mm) male quick
connect terminals.
C103PM (AL) DIN Rail
35 mm aluminum DIN rail available in a 36 in.
(91.4 cm) length.
P1023-20 DIN Rail Adapter
Allows module to be mounted on a 35 mm DIN
type rail with two #10 screws.
Wiring Diagram
V = Voltage
UTL = Optional Untimed Load
S1 = Initiate Switch
L = Timed Load
Ordering Information
MODEL INPUT VOLTAGE TIME RANGE
TDUS3000A 24 to 120VAC 1 - 1023s
TDUS3001A 100 to 240VAC 1 - 1023s
TDUS3002A 12 to 24VDC 1 - 1023s
TDUSH3001A 100 to 240VAC 0.1 - 102.3m
TDUSL3000A 24 to 120VAC 0.1 - 102.3s
If you don’t find the part you need, call us for a custom product 800-843-8848
