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© 2016 Littelfuse Protection Relays & Controls Time Delay Relays Dedicated - Recycle www.littelfuse.com/ksdr Rev: 1-A-061016 KSDR SERIES
Description
The KSDR Series offers independent time adjustment of both delay periods. The KSDR Series is recommended for air drying, automatic oiling, life testing, chemical metering, and automatic duty cycling. This series is designed for general purpose commercial and industrial applications where a small, cost effective, reliable, solid-state timer is required. The factory calibration for fixed time delays is within ± 5% of the target delay. The repeat accuracy, under stable conditions, is 0.5% of the selected time delay. This series is designed for input voltages of 24, 120 or 230VAC. Time delays of 0.1 seconds to 1000 minutes are available in 6 ranges. The output is rated 1A steady and 10A inrush. The modules are totally solid state and encapsulated to protect the electronic circuitry. Operation (Recycling - ON Time First) Upon application of input voltage, the output energizes and the T1, ON time begins. At the end of the ON time, the output de-energizes and the T2, OFF time begins. At the end of the OFF time, the output energizes and the cycle repeats as long as input voltage is applied. Reset: Removing input voltage resets the output and time delays, and returns the sequence to T1 ON time. Operation (Recycling - OFF Time First) Upon application of input voltage, the T2 OFF time begins. At the end of the OFF time, the T1 ON time begins and the load energizes. At the end of T1, T2 begins and the load de-energizes. This cycle repeats until input voltage is removed. Reset: Removing input voltage resets the output and the sequence to T2 OFF time. Features & Benefits FEATURES BENEFITS Microcontroller based Repeat Accuracy + / -0.5%, Factory calibration + / - 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 Wide operating temperature range: -40° to 75°C Reliable in demanding commercial and industrial applications Compact, low cost design measuring 2 in. (50.8mm) square Allows flexiblility for OEM applications Wiring Diagram L1 N/L2 V = Voltage L = Load RT is used when external adjustment is ordered.
Ordering Information
VOLTAGE T1 ON TIME FIRST DELAY T2 OFF TIME KSDR40A0 120VAC 0.1 - 10s On time 0.1 - 10s KSDR42A4 120VAC 10 - 1000s On time 1 - 100m If you don’t find the part you need, call us for a custom product 800-843-8848
© 2016 Littelfuse Protection Relays & Controls Time Delay Relays Dedicated - Recycle www.littelfuse.com/ksdr Rev: 1-A-061016 KSDR SERIES Accessories P1004-95, P1004-95-X Versa-Pot Panel mountable, industrial potentiometer recommended for remote time delay adjustment. P1023-6 Mounting bracket The 90° orientation of mounting slots makes installation/removal of modules quick and easy. P0700-7 Versa-Knob Designed for 0.25 in (6.35 mm) shaft of Versa-Pot. Semi-gloss industrial black finish. 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. 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. External Resistance vs. Time Delay This chart applies to externally adjustable part numbers. The time delay is adjustable over the time delay range selected by varying the resistance across the RT terminals; as the resistance increases the tie delay increases. When selecting an external RT, add the tolerances of the timer and the RT for the full time range adjustment. Examples: 1 to 50 S adjustable time delay, select time delay range 1 and a 50 K ohn RT. For 1 to 100 S use a 100 K ohm RT. Function Diagrams RECYCLING (ON FIRST) V = Voltage NO = Normally Open Contact NC = Normally Closed Contact TD1, TD2 = Time Delay R = Reset RECYCLE (OFF TIME FIRST) V = Voltage NO = Normally Open Contact NC = Normally Closed Contact TD1, TD2 = Time Delay R = Reset Specifications Time Delay Range 0.1s - 1000m in 6 ranges Repeat Accuracy ±0.5% or 20ms, whichever is greater Tolerance (Factory Calibration) ≤ ±5% Reset Time ≤ 150ms Time Delay vs Temp. & Voltage ≤ ±10% Input Voltage 24, 120, or 230VAC Tolerance ±20% AC Line Frequency 50/60 Hz Power Consumption ≤ 2VA Output Type Solid state Rating 1A steady state, 10A inrush at 60°C Voltage Drop ≅ 2.5V @ 1A OFF State Leakage Current ≅ 5mA @ 230VAC 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”); W 50.8 mm (2”); D 30.7 mm (1.21”) Termination 0.25 in. (6.35 mm) male quick connect terminals Environmental Operating/Storage Temperature -40° to 75°C / -40° to 85°C Humidity 95% relative, non-condensing Weight ≅ 2.4 oz (68 g) V = Voltage NO = Normally Open Contact NC = Normally Closed Contact TD1, TD2 = Time Delay R = Reset