Time Delay Relays
Multifunction
DSQU / DSTU SERIES
Description
The DSQU and DSTU Series of 17.5 mm, switch adjustable,
universal solid-state timers offer multiple functions, voltages,
and time delay ranges. Choose one of 5 functions and 4 time
delay ranges via 4 selection switches located on face of the unit.
Six switches adjust the time delay through the selected range.
The DSQU Series has quick connect terminals and the DSTU
Series has terminal blocks.
Features & Benefits
FEATURES
BENEFITS
Universal AC or
DC voltage
Choose from 24 to 240VAC or 9 to 110VDC models
Wiring & Adjustment Diagrams
Compact 17.5mm size
Microcontroller based
Allows for high rail density
Repeat Accuracy + / -1%
DELAY-ON-MAKE & RECYCLING
ADJUSTMENTS
A
B
L1
N/L2
DOM
SS
Multifunction:
5 timing functions
Reduce stocking requirements
A
Knob Adjustable
Time Delay
B
Field adjustable delay ranging from 0.1s - 100m
Provides 100 million operations in typical conditions.
A
B
R
0.7A steady, 10A inrush
solid-state output
A
B
DOB
Mounting fasteners
included
Each unit ships with both surface and DIN rail quick
mount adapters
DOM = Delay-on-Make
SS = Single Shot/Interval
R = Recycling
Self monitoring and self correcting for
improved performance
Watchdog circuitry
SINGLE SHOT, INTERVAL &
DELAY-ON-BREAK
DOB = Delay-on-Break
Accessories
P1015-13 (AWG 10/12), 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.
L1
N/L2
R
M
S
I
C
D
E
F
0.1-6.3s X0.1s
0.1s
C
D
E
F
1-63s
10-630s
X1s
X10s
X1m
1s
10s
1m
P0500-178 Surface Mount Adapter
P0500-179 DIN Rail Mount Adapter
For use with the ASxx/DSxx Series timers.
C
D
E
F
C
D
E
F
1-63m
R = Range
M = Multiplier
S = Setting
I = Increments of time
V = Voltage
L = Load
J= Wire Required for
Interval Operation
Ordering Information
ON
S1= Initiate Switch
UTL = Optional Untimed Load
1
MODEL
INPUT VOLTAGE
24 - 240VAC
9 - 110VDC
CONNECTION
Quick Connects
Quick Connects
Terminal Blocks
Terminal Blocks
2
4
8
16
32
DSQUA3
DSQUD3
DSTUA3
DSTUD3
24 - 240VAC
9 - 110VDC
Add switches in ON position
TD = 2+8+16=26
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/dsqu-dstu
Rev: 1-A-062216