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© 2016 Littelfuse Protection Relays & Controls Time Delay Relays Dedicated - Delay-on-Make www.littelfuse.com/ksdu Rev: 1-A-062216 KSDU SERIES
Description
The KSDU Series are encapsulated solid-state, delay-on-make timers that combine digital timing circuitry with universal voltage operation. The KSDU Series is factory fixed from 0.1s to 10,230s and does not include the DIP switch. These series are excellent choices for process control systems and OEM equipment. Operation (Delay-on-Make) Upon application of input voltage, the time delay begins. The output is de-energized before and during the time delay. At the end of the time delay, the output energizes and remains energized until input voltage is removed. Reset: Removing input voltage resets the time delay and output. Features & Benefits FEATURES BENEFITS Universal Voltage 24 to 240VAC/DC in 2 ranges Digital Integrated Circuitry Repeat accuracy + / - 5% 1A Steady, 10A inrush solid-state output Provides 100 million operations in typical conditions. T otally solid state and encapsulated No moving parts to arc and wear out over time and encapsulated to protect against shock, vibration, and humidity 2 terminal design Provides series connection for easy installation Accessories P1023-6 Mounting bracket The 90° orientation of mounting slots makes installation/removal of modules quick and easy. P1015-64 (AWG 14/16) Female Quick Connect These 0.25 in. (6.35 mm) female terminals are constructed with an insulator barrel to provide strain relief. 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. P1023-20 DIN Rail Adapter Allows module to be mounted on a 35 mm DIN type rail with two #10 screws. Wiring Diagram
Ordering Information
MODEL INPUT VOLTAGE ADJUSTMENT TIME DELAY KSDU8120 24 to 120VAC/DC Fixed 20s KSDU811200 24 to 120VAC/DC Fixed 1200s If you don’t find the part you need, call us for a custom product 800-843-8848 L1 N/L2 V = Voltage L = Load Load may be connected to terminal 3 or 1. KSDU is fixed.
© 2016 Littelfuse Protection Relays & Controls Time Delay Relays Dedicated - Delay-on-Make www.littelfuse.com/ksdu Rev: 1-A-062216 Specifications Time Delay Type Digital integrated circuitry Range* Fixed Fixed from 0.1s - 10230s Repeat Accuracy ±0.5% or 20ms, whichever is greater Tolerance (Factory Calibration) ±10% Recycle Time ≤150ms Time Delay vs Temp. & Voltage ±5% Input Voltage 24 to 120VAC/DC; 100 to 240VAC/DC AC Line Frequency 50/60 Hz Tolerance ±20% Output Type Solid state Form NO, open during timing Maximum Load Current 1A steady state, 10A inrush at 60°C Minimum Holding Current 40mA Voltage Drop ≅ 2.5V @ 1A Protection Circuitry Encapsulated Dielectric Breakdown ≥ 2000V RMS terminals to mounting surface Insulation Resistance ≥100 MΩ Mechanical Mounting Surface mount with one #10 (M5 x 0.8) screw Dimensions H 50.8 mm (2.0”); W 50.8 mm (2.0”); D 30.7 mm (1.21”) Termination 0.25 in. (6.35 mm) male quick connect terminals Environmental Operating/Storage Temperature -40° to 60°C / -40° to 85°C Humidity 95% relative, non-condensing Weight ≅ 2.4 oz (68 g) * For CE approved applications, power must be removed from the unit when a switch position is changed. KSDU SERIES Function Diagram DELAY-ON-MAKE (ON-DELAY) V = Voltage NO = Normally Open Contact NC = Normally Closed Contact TD = Time Delay R = Reset = Undefined Time