Time Delay Relays
Dedicated - Single Shot
THDS SERIES
Description
TheTHDS Series combines accurate timing circuitry with high
power solid-state switching. It can switch motors, lamps, and
heaters directly without a contactor. You can reduce labor,
component cost, and increase reliability with these small,
easy-to-use, timers.
Operation (Single Shot)
Input voltage must be applied before and during timing. Upon
momentary or maintained closure of the initiate switch, 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 energizes 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.
Wiring Diagram
Features & Benefits
L1
N/L2
FEATURES
BENEFITS
Repeat Accuracy + / - 0.5%,
Factory calibration +/- 1%
Microcontroller based
V = Voltage
High load currents up
to 20A, 200A inrush
UTL = Optional Untimed
Load
Allows direct operation of motors, lamps and
heaters without a contactor
L =Timed Load
S1 = Initiate Switch
No moving parts to arc and wear out over time and
encapsulated to protect against shock, vibration,
and humidity
Totally solid state
and encapsulated
R
is used when external
T
Metalized
mounting surface
Facilitates heat transfer in high current applications
adjustment is ordered.
Compact, low
cost design
Allows flexibility for OEM applications and reduces
labor and component costs
Accessories
P1004-95, P1004-95-X Versa-Pot
Panel mountable, industrial potentiometer
recommended for remote time delay adjustment.
P0700-7 Versa-Knob
Designed for 0.25 in (6.35 mm) shaft of
Versa-Pot. Semi-gloss industrial black finish.
Ordering Information
INPUT
VOLTAGE
OUTPUT
MODEL
ADJUSTMENT
TIME DELAY
RATING
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.
THDS410.25SA 120VAC
THDS431C 120VAC
THDS610.25SA 230VAC
Fixed
0.25s
6A
Onboard
Fixed
1 - 100s
0.25s
20A
6A
If you don’t find the part you need, call us for a custom product 800-843-8848
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.
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/thds
Rev: 1-A-062216