© 2016 Littelfuse Protection Relays & Controls
Time Delay Relays
Dedicated - Delay-on-Make
www.littelfuse.com/ksd1
Rev: 1-A-062116
KSD1 SERIES
L1 N/L2
Delay-on-Make Timer
Description
The KSD1 Series features two-terminal, series-connection
with the load. The KSD1 Series is an ideal choice for delay-on-
make timing applications. 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. This series is designed for popular AC
and DC voltages. 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 (Delay-on-Make)
Upon application of input voltage, the time delay begins. The
output is de-energized before and during the time delay. At
the end of the time delay, the output energizes and remains
energized until input voltage is removed.
Reset: Removing input voltage resets the time delay and output.
Features & Benefits
FEATURES BENEFITS
Microcontroller based
Repeat Accuracy + / - 0.5%,
+ / -5% time delay accuracy
Compact, low
cost design
Allows flexiblility for OEM applications
1A Steady solid-state
output, 10A inrush
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
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.
P1015-64 (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.
Wiring Diagram
Load may be
connected to
terminal 3 or 1.
R
T
is used when
external adjustment
is ordered.
Ordering Information
MODEL INPUT VOLTAGE ADJUSTMENT TIME DELAY
KSD11120S 12VDC Fixed 20s
KSD1123 12VDC External 0.1 - 10m
KSD1230 24VAC Onboard 0.1 - 10s
KSD1320 24VDC External 0.1 - 10s
KSD1412S 120VAC Fixed 2s
KSD14130S 120VAC Fixed 30s
KSD1420 120VAC External 0.1 - 10s
KSD16130S 230VAC Fixed 30s
If you don’t find the part you need, call us for a custom product 800-843-8848
