© 2016 Littelfuse Protection Relays & Controls
Time Delay Relays
Dedicated - Delay-on-Make
www.littelfuse.com/ksdu
Rev: 1-A-062216
KSDU SERIES
Description
The KSDU Series are encapsulated solid-state, delay-on-make
timers that combine digital timing circuitry with universal voltage
operation. The KSDU Series is factory fixed from 0.1s to 10,230s
and does not include the DIP switch. These series are excellent
choices for process control systems and OEM equipment.
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
Universal Voltage 24 to 240VAC/DC in 2 ranges
Digital Integrated
Circuitry
Repeat accuracy + / - 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
2 terminal design Provides series connection for easy installation
Accessories
P1023-6 Mounting bracket
The 90° orientation of mounting slots makes
installation/removal of modules quick and easy.
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
Ordering Information
MODEL INPUT VOLTAGE ADJUSTMENT TIME DELAY
KSDU8120 24 to 120VAC/DC Fixed 20s
KSDU811200 24 to 120VAC/DC Fixed 1200s
If you don’t find the part you need, call us for a custom product 800-843-8848
L1 N/L2
V = Voltage
L = Load
Load may be connected
to terminal 3 or 1.
KSDU is fixed.
