Littelfuse DSTUA3, DSQU / DSTU Series, 24-240VAC, Programmable (Multi-Function) Time Delay Relay SPST-NO (1 Form A) 0.1 Sec ~ 63 Min Delay DIN Rail

In stock
Regular price $232.53
Rated voltage

Use this text to encourage communication or promote sharing on social networks.

You can also add links

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

Universal AC or DC voltage Choose from 24 to 240VAC or 9 to 110VDC models
Compact 17.5mm size  Allows for high rail density
Microcontroller based Repeat Accuracy + / -1%
Multifunction: 5 timing functions Reduce stocking requirements
Knob Adjustable Time Delay Field adjustable delay ranging from 0.1s - 100m
0.7A steady, 10A inrush solid-state output Provides 100 million operations in typical conditions.
Mounting fasteners included Each unit ships with both surface and DIN rail quick mount adapters
Watchdog circuitry Self monitoring and self correcting for improved performance


Time Delay  
Type Microcontroller based with ceramic resonator and watchdog circuitry
Adjustment 6 switches adjust the time delay;
2 switches select 1 of 4 multipliers


*For CE approved applications, power must be removed from the unit when a switch position is changed.

x0.1s = 0.1 - 6.3s in 0.1s increments
x1s = 1 - 63s in 1s increments
x10s = 10 - 630s in 10s increments
x1m = 1 - 63m in 1m increments
Repeat Accuracy ±0.1% or ±20ms, whichever is greater
Setting Accuracy ±2% or ±50ms, whichever is greater
Reset Time ≤ 300ms
Initiate Time Single Shot & Delay-on-Break: ≤ 32ms
Time Delay vs Temp. & Voltage ±2% or ±50ms, whichever is greater
Voltage AC: 24 to 240VAC; -20% - 10%
DC: 9 to 110VDC; -0% - 20% @ -25°C
9.4 to 110VDC; -0% - 20% @ -40°C
AC Line Frequency/DC Ripple 50/60Hz / ≤ 10%
Type Solid state
Form NO
Rating 0.7A steady state, 10A inrush
Voltage Drop AC ≅ 2.5V @ 0.7A; DC ≅ 1.5V @ 0.7A
Surge IEEE C62.41-1991 Level A
Circuitry Encapsulated
Dielectric Breakdown ≥ 2000V RMS terminals to mounting surface
Polarity DC units are reverse polarity protected
Mounting Two base adaptors are available
DIN Rail Snap on to 32 mm DIN 1 & 35 mm DIN 3 rail
Surface Two #6 (M3.5 x 0.6) screws or quick mount fasteners
Dimensions H 76.2 mm (3.0”)
W 17.52 mm (0.69”)
D 61.2 mm (2.41”)
Termination DSQU 0.25 in. (6.35 mm) male quick connect terminals
DSTU 0.197 in. (5 mm) push-on terminal blocks for up to #14 AWG (2.5 mm2 ) wire
Operating/Storage Temperature 40° to 60°C / -40° to 85°C
Humidity 95% relative, non-condensing
Weight ≅ 4.2 oz (119 g)