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© 2016 Littelfuse Protection Relays & Controls Time Delay Relays Multifunction www.littelfuse.com/asqu-astu Rev: 1-A-062216 0.1-10s 1-100s 10-1000s 1-100m X100s X10s X1s X10m R M S D C D C D C D C F E F E F E F E R = Range M = Multiplier S = Setting

Description

The ASQU and ASTU Series of 17 .5 mm, knob 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. Adjustment through the time range is accomplished by an onboard knob. The ASQU Series has quick connect terminals and the ASTU Series has terminal blocks. Features & Benefits 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 Iincluded Each unit ships with both surface and DIN rail quick mount adapters Watchdog circuitry Self monitoring and self correcting for improved performance 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. P0500-178 Surface Mount Adapter P0500-179 DIN Rail Mount Adapter For use with the ASxx/DSxx Series timers.

Ordering Information

MODEL INPUT VOLTAGE CONNECTION ASQUA3 24 to 240VAC Quick Connects ASQUD3 9 to 110VDC Quick Connects ASTUA3 24 to 240VAC Terminal Blocks ASTUD3 9 to 110VDC Terminal Blocks If you don’t find the part you need, call us for a custom product 800-843-8848 L1 N/L2 L1 N/L2 V = Voltage L = Load J= Wire Required for Interval Operation S1= Initiate Switch UTL = Optional Untimed Load DELAY -ON-MAKE & RECYCLING SINGLE SHOT , INTERVAL & DELAY -ON-BREAK DOM SS R DOB A A A A B B B B ADJUSTMENTS DOM = Delay-on-Make SS = Single Shot/Interval R = Recycling DOB = Delay-on-Break Wiring & Adjustment Diagrams L1 N/L2 L1 N/L2 ASQU / ASTU SERIES

© 2016 Littelfuse Protection Relays & Controls Time Delay Relays Multifunction www.littelfuse.com/asqu-astu Rev: 1-A-062216 ASQU / ASTU SERIES Specifications Time Delay Type Microcontroller based with ceramic resonator and watchdog circuitry Adjustment Knob with dial; 2 switches select 1 of 4 multipliers Range* 0.1 - 10s, 1 - 100s, 10 - 1000s, 1 - 100m Repeat Accuracy ±1% or ±50ms, whicheer is greater Tolerance (Factory Calibration) ±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 Input Voltage AC: 24 to 240VAC; -20% - 10% AC Line Frequency/DC Ripple 50/60Hz / ≤ 10% Output Type Solid state Form NO Rating 0.7A steady state, 10A inrush Voltage Drop AC ≅ 2.5V @ 0.7A; DC ≅ 1.5V @ 0.7A Protection Surge IEEE C62.41-1991 Level A Circuitry Encapsulated Dielectric Breakdown ≥ 2000V RMS terminals to mounting surface Polarity DC units are reverse polarity protected Mechanical 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 ASQU 0.25 in. (6.35 mm) male quick connect terminals ASTU 0.197 in. (5 mm) push-on terminal blocks for up to #14 AWG (2.5 mm2) wire Environmental Operating/Storage Temperature -40° to 60°C / -40° to 85°C Humidity 95% relative, non-condensing Weight ≅ 4 oz (113 g) *For CE approved applications, power must be removed from the unit when a switch position is changed. DIN Rail Mount Inches (Millimeters) Surface Mount Quick Mount Fastner(2) [Drill . 187 (4.75) diameter hole] 35mm DIN 3 32MM DIN 1 .815 (20.70) .640 (16.26) .38 (9.65 .185 (4.70) 3.00 (76.2) 2.41 (61.2) .235 DIA (5.97) .69 (17.52) P0500-178 SURFACE MOUNT Inches (Millimeters) P0500-179 DIN RAIL MOUNT Inches (Millimeters) Mounting Diagrams DIN Rail Mount Inches (Millimeters) Surface Mount Quick Mount Fastner(2) [Drill . 187 (4.75) diameter hole] 35mm DIN 3 32MM DIN 1 .815 (20.70) .640 (16.26) .38 (9.65 .185 (4.70) 3.00 (76.2) 2.41 (61.2) .235 DIA (5.97) .69 (17.52)