© 2016 Littelfuse Protection Relays & Controls
Time Delay Relays
Dedicated - Single Shot
Rev: 1-A-062216
www.littelfuse.com/ksds
KSDS SERIES
Wiring Diagram
Description
The KSDS Series is ideal for applications that require momentary
start interval timing including dispensing, exposure timing,
or pulse shaping. This series is available for both AC and DC
voltages. This series is designed for general purpose commercial
and industrial applications where a small, cost effective, reliable
solid-state timer is required. The factory calibration for fixed
time delays is within 5% of the target time delay. The repeat
accuracy, under stable conditions, is 0.5% of the selected time
delay. Time delays of 0.1 seconds to 1000 minutes are available
in 6 ranges. The output is rated 1A steady and 10A inrush. The
modules are totally solid state and encapsulated to protect the
electronic circuitry.
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 not 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 + / - 0.5%,
Factory calibration +/- 5%
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
Compact, low
cost design
Allows flexibility for OEM applications
Accessories
P1004-95, P1004-95-X Versa-Pot
Panel mountable, industrial potentiometer
recommended for remote time delay adjustment.
P1023-6 Mounting bracket
The 90° orientation of mounting slots makes
installation/removal of modules quick and easy.
P0700-7 Versa-Knob
Designed for 0.25 in (6.35 mm) shaft of
Versa-Pot. Semi-gloss industrial black finish.
P1015-13 (AWG 10/12), 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.
V = Voltage
UTL = Optional Untimed Load
L = Timed Load
S1 = Initiate Switch
R
T
is used when external
adjustment is ordered.
L1 N/L2
(Positive Switching)
(Negative Switching)
Ordering Information
MODEL
INPUT
VOLTAGE
ADJUSTMENT TIME DELAY
SWITCHING
MODE
KSDS1115SP
12VDC
Fixed 15s Positive
KSDS230 24VAC Onboard 0.1 - 10s n/a
KSDS320P 24VAC External 0.1 - 10s Positive
KSDS415M 120VAC Fixed 5m n/a
KSDS420 120VAC External 0.1 - 10s n/a
If you don’t find the part you need, call us for a custom product 800-843-8848
