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
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