KSDB113SP [LITTELFUSE]
SOLID STATE TIMER;
LITTELFUSE 
Time Delay Relays
Dedicated - Delay-on-Break
KSDB SERIES
Description
The KSDB 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-Break)
Input voltage must be applied before and during timing. Upon
closure of the initiate switch, the output energizes. The time
delay begins when the initiate switch is opened. The output
remains energized during timing. At the end of the time delay,
the output de-energizes. The output energizes if the initiate
switch is closed when input voltage is applied.
Wiring Diagram
(Positive Switching)
(Negative Switching)
L1
N/L2
Reset: Reclosing the initiate switch during timing resets the time
delay. Loss of input voltage resets the time delay and output.
V = Voltage
UTL = Optional Untimed
Load
Features & Benefits
L = Load
S1 = Initiate Switch
FEATURES
BENEFITS
Repeat accuracy + / - 0.5%,
Factory calibration + / - 5%
Microcontroller based
R
is used when external
T
1A Steady, 10A inrush
solid-state output
adjustment is ordered.
Provides 100 million operations in typical conditions.
No moving parts to arc and wear out over time and
encapsulated to protect against shock, vibration,
and humidity
Totally solid state
and encapsulated
Compact, low
cost design
Allows flexibility for OEM applications
Ordering Information
INPUT
SWITCHING
MODE
INPUT
MODEL
SWITCHING
ADJUSTMENT TIME DELAY
MODE
MODEL
ADJUSTMENT TIME DELAY
VOLTAGE
VOLTAGE
KSDB1110MP 12VDC
Fixed
10m
Positive
Positive
Positive
Positive
Positive
Positive
Positive
n/a
KSDB314SP
KSDB315SP
KSDB324N
KSDB330N
KSDB4120M
KSDB4160S
KSDB4190M
KSDB431
24VDC
24VDC
24VDC
24VDC
120VAC
120VAC
120VAC
120VAC
230VAC
230VAC
Fixed
4s
Positive
Positive
Negative
Negative
n/a
KSDB1115SP
KSDB1120SP
KSDB113MP
KSDB113SP
KSDB120P
KSDB134P
KSDB2115S
KSDB220
12VDC
12VDC
12VDC
12VDC
12VDC
12VDC
24VAC
24VAC
24VAC
Fixed
15s
Fixed
5s
Fixed
20s
External
Onboard
Fixed
1 - 100m
0.1 - 10s
20m
Fixed
3m
Fixed
3s
External
Onboard
Fixed
0.1 - 10s
1 - 100m
15s
Fixed
60s
n/a
Fixed
90m
n/a
Onboard
Fixed
1 - 100s
150s
n/a
External
Onboard
0.1 - 10s
1 - 100s
n/a
KSDB61150S
KSDB631
n/a
KSDB231
n/a
Onboard
1 - 100s
n/a
If you don’t find the part you need, call us for a custom product 800-843-8848
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/ksdb
Rev: 1-A-062216
Time Delay Relays
Dedicated - Delay-on-Break
KSDB SERIES
Accessories
Specifications
Time Delay
P1004-95, P1004-95-X Versa-Pot
Panel mountable, industrial potentiometer
recommended for remote time delay adjustment.
Range
Repeat Accuracy
Tolerance
0.1s - 1000m in 6 adjustable ranges or fixed
0.5 % or 20ms, whichever is greater
(Factory Calibration)
Reset Time
Initiate Time
Time Delay vs Temp.
& Voltage
Input
Voltage
Tolerance
Power Consumption
AC Line Frequency/DC Ripple 50/60 Hz / ≤ 10 %
Output
Type
Form
Maximum Load Current
OFF State Leakage Current
Voltage Drop
DC Operation
Protection
≤ 5%
≤ 150ms
≤ 20ms
P1023-6 Mounting bracket
The 90° orientation of mounting slots makes
installation/removal of modules quick and easy.
≤ 10%
P0700-7 Versa-Knob
Designed for 0.25 in (6.35 mm) shaft of
Versa-Pot. Semi-gloss industrial black finish.
12, 24, or 120VDC; 24, 120, or 230VAC
20%
AC ≤ 2VA; DC ≤ 2W
P1015-64 (AWG 14/16), P1015-14 (AWG 18/22)
Female Quick Connect
These 0.25 in. (6.35 mm) female terminals are
constructed with an insulator barrel to provide
strain relief.
Solid state
NO, closed before & during timing
1A steady state, 10A inrush at 60°C
AC≅ 5mA @ 230VAC; DC ≅ 1mA
AC ≅ 2.5V @ 1A; DC ≅ 1V @ 1A
Positive or negative switching
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.
Circuitry
Encapsulated
≥ 2000V RMS terminals to mounting surface
≥ 100 MΩ
Dielectric Breakdown
Insulation Resistance
Polarity
Mechanical
Mounting
DC units are reverse polarity protected
P1023-20 DIN Rail Adapter
Allows module to be mounted on a 35 mm DIN
type rail with two #10 screws.
Surface mount with one #10 (M5 x 0.8) screw
H 50.8 mm (2.0”); W 50.8 mm (2.0”);
D 30.7 mm (1.21”)
Dimensions
Termination
Environmental
Operating/Storage
Temperature
Humidity
0.25 in. (6.35 mm) male quick connect terminals
External Resistance vs.Time Delay
-40° to 60°C / -40° to 80°C
95% relative, non-condensing
≅ 2.4 oz (68 g)
Weight
Function Diagram
DELAY-ON-BREAK (OFF-DELAY)
V = Voltage
S1 = Initiate Switch
NO = Normally
Open Contact
NC = Normally
Closed Contact
TD =Time Delay
t = Incomplete
Time Delay
R = Reset
This chart applies to externally adjustable part numbers.
The time delay is adjustable over the time delay range selected by varying
= Undefined
Time
the resistance across the R terminals; as the resistance increases the tie
T
delay increases.
When selecting an external R , add the tolerances of the timer and the R
T
T
for the full time range adjustment.
Examples: 1 to 50 S adjustable time delay, select time delay range 1 and
a 50 K ohn R . For 1 to 100 S use a 100 K ohm R .
T
T
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/ksdb
Rev: 1-A-062216
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