Time Delay Relays Dedicated - Retriggerable Single Shot KRD9 SERIES Description The KRD9 Series microcontroller timing circuit provides excellent repeat accuracy and stability. Cost effective approach for OEM applications that require small size, isolation, reliability, and long life. Operation (Retriggerable Single Shot) Function Type A (Output Initially De-energized): Input voltage must be applied prior to and during timing. When the initiate switch is closed, (momentary or maintained) the output energizes and the time delay starts. On completion of the delay, the output de-energizes. The unit will time out if S1 remains in the open or closed position for the full time delay. Reclosing the initiate switch resets the time delay and restarts timing the output remains energized. The output will not energize if the initiate switch is closed when input voltage is applied. Function Type B (Output Initially Energized): Upon application Wiring Diagram of input voltage, the output energizes and the time delay starts. At the end of the time delay, the load de-energizes. The unit will time out if S1 remains in the open or closed position for the full L1 N/L2 time delay. Closing (re-closing) the initiate switch resets the time V = Voltage delay and restarts timing the output remains energized. S1 = Initiate Switch C = Common, Reset: The time delay and the output are reset when input Transfer Contact voltage is removed. UTL = Untimed Load (optional) A knob is supplied for adjustable Features & Benefits units, or R terminals 4 & 5 for T FEATURES BENEFITS external adjust. See external adjustment vs time delay chart. Repeat Accuracy + / - 0.5%, Microcontroller based The untimed load is optional. Factory calibration + / - 5% Relay contacts are isolated. Compact, low Allows flexiblility for OEM applications and reduces cost design labor and component costs Isolated, 10A, SPDT Allows control of loads for AC or DC voltages output contacts Encapsulated circuitry Protects against shock, vibration, and humidity Accessories P1004-95, P1004-95-X Versa-Pot Ordering Information Panel mountable, industrial potentiometer INPUT FUNCTION recommended for remote time delay adjustment. MODEL ADJUSTMENT TIME DELAY VOLTAGE TYPE P1023-6 Mounting bracket KRD9120B 12VDC Onboard 0.1 - 10s Energized The 90 orientation of mounting slots makes KRD92115MA 24VAC/DC Fixed 15m De-energized installation/removal of modules quick and easy. KRD92115MB 24VAC/DC Fixed 15m Energized P0700-7 Versa-Knob KRD9220B 24VAC/DC Onboard 0.1 - 10s Energized Designed for 0.25 in (6.35 mm) shaft of KRD93115MA 24VDC Fixed 15m De-energized Versa-Pot. Semi-gloss industrial black finish. KRD9423B 120VAC Onboard 0.1 - 10m Energized P1015-13 (AWG 10/12), P1015-64 (AWG 14/16) If you dont find the part you need, call us for a custom product 800-843-8848 Female Quick Connect These 0.25 in. (6.35 mm) female terminals are constructed with an insulator barrel to provide strain relief. 2016 Littelfuse Protection Relays & Controls Rev: 1-A-062216 www.littelfuse.com/krd9Time Delay Relays Dedicated - Retriggerable Single Shot KRD9 SERIES Accessories Specifications Time Delay P1015-18 Quick Connect to Screw Adapter Type Microcontroller based with watchdog circuitry Screw adapter terminal designed for use with Range 0.1s - 1000m in 6 adjustable ranges or fixed all modules with 0.25 in. (6.35 mm) male quick Repeat Accuracy 0.5% or 20ms, whichever is greater connect terminals. Tolerance C103PM (AL) DIN Rail (Factory Calibration) 5% 35 mm aluminum DIN rail available in a 36 in. Reset Time 150ms (91.4 cm) length. Initiate Time 40ms 750 operations per minute Time Delay vs Temp. P1023-20 DIN Rail Adapter & Voltage 5% Allows module to be mounted on a 35 mm DIN Input type rail with two 10 screws. Voltage 12, 24 or 110VDC 24, 120 or 230VAC Tolerance 12VDC & 24VDC/AC -15% - +20% External Resistance vs. Time Delay 110VDC, 120 or 230VAC -20% - +10% AC Line Frequency/DC Ripple 50/60 Hz / 10% Power Consumption AC 2VA DC 2W Output Type Isolated relay contacts Form SPDT Rating (at 40C) 10A resistive 125VAC 5A resistive 230VAC & 28VDC 1/4 hp 125VAC Max. Switching Voltage 250VAC 7 5 Life (Operations) Mechanical - 1 x 10 Electrical - 1 x 10 Protection Circuitry Encapsulated Isolation Voltage 1500V RMS input to output Insulation Resistance 100 M Polarity DC units are reversed polarity protected Mechanical Mounting Surface mount with one 10 (M5 x 0.8) screw This chart applies to externally adjustable part numbers. Dimensions H 50.8 mm (2.0) W 50.8 mm (2.0) The time delay is adjustable over the time delay range selected by varying the resistance across the R terminals as the resistance increases the tie D 30.7 mm (1.21) T delay increases. Termination 0.25 in. (6.35 mm) male quick connect terminals When selecting an external R , add the tolerances of the timer and the R T T Environmental for the full time range adjustment. Operating/Storage Examples: 1 to 50 S adjustable time delay, select time delay range 1 and a 50 K ohn R . For 1 to 100 S use a 100 K ohm R . T T Temperature -40to 60C / -40 to 85C Humidity 95% relative, non-condensing Weight 2.6 oz (74 g) Output Current/Ambient Temperature Function Diagram V = Voltage RETRIGGERABLE SINGLE SHOT (MOTION DETECTOR) (PSD) S1 = Initiate Switch NO = Normally Open Contact NC = Normally Closed Contact t = Incomplete Time Delay TD = Time Delay R = Reset 2016 Littelfuse Protection Relays & Controls Rev: 1-A-062216 www.littelfuse.com/krd9