Time Delay Relays Dedicated - Interval THD2 SERIES Description The THD2 Series combines accurate timing circuitry with high power solid-state switching. It can switch motors, lamps, and heaters directly without a contactor. You can reduce labor, component cost, and increase reliability with these small, easy-to-use, Digi-Power timers. Operation (Interval) Upon application of input voltage, the time delay begins. The output energizes during the time delay. At the end of the time delay, the output de-energizes and remains de-energized until input voltage is removed. Reset: Removing input voltage resets the time delay and the output. Features & Benefits FEATURES BENEFITS Wiring Diagram Repeat Accuracy + / - 0.5%, Microcontroller based Factory calibration + / - 1% L1 N/L2 High load currents up Allows direct control of motors, lamps and heaters without a contactor to 20A, 200A inrush No moving parts to arc and wear out over time and Totally solid state encapsulated to protect against shock, vibration, V = Voltage and encapsulated and humidity L = Load S1 = Optional Low Current Metalized Facilitates heat transfer in high current applications mounting surface Initiate Switch Compact, low Allows flexibility for OEM applications and reduces R is used when external cost design labor and components costs T adjustment is ordered. Accessories P1004-95, P1004-95-X Versa-Pot Panel mountable, industrial potentiometer recommended for remote time delay adjustment. 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) Female Quick Connect These 0.25 in. (6.35 mm) female terminals are Ordering Information constructed with an insulator barrel to provide strain relief. OUTPUT INPUT MODEL ADJUSTMENT TIME DELAY RATING VOLTAGE P1015-18 Quick Connect to Screw Adapter Screw adapter terminal designed for use with THD2C420 20A 120VAC External 0.1 - 10s all modules with 0.25 in. (6.35 mm) male quick THD2C423 20A 120VAC External 0.1 - 10m connect terminals. THD2C433 20A 120VAC Onboard 0.1 - 10m THD2C620 20A 230VAC External 0.1 - 10s THD2C633 20A 230VAC Onboard 0.1 - 10m If you dont find the part you need, call us for a custom product 800-843-8848 2016 Littelfuse Protection Relays & Controls Rev: 1-A-061016 www.littelfuse.com/thd2Time Delay Relays Dedicated - Interval THD2 SERIES External Resistance vs. Time Delay Specifications Time Delay Range 0.1s - 1000m in 6 adjustable ranges or fixed Repeat Accuracy 0.5% or 20ms, whichever is greater Tolerance (Factory Calibration) 1% Reset Time 150ms Time Delay vs Temp. & Voltage 2% Input Voltage 24, 120, or 230VAC Tolerance 20% AC Line Frequency 50/60 Hz Output Type Solid state Form NO, closed during timing Maximum Load Current Output Steady State Inrush** A 6A 60A This chart applies to externally adjustable part numbers. B 10A 100A The time delay is adjustable over the time delay range selected by varying C 20A 200A the resistance across the R terminals as the resistance increases the tie T delay increases. Minimum Load Current 100mA When selecting an external R , add the tolerances of the timer and the R T T Voltage Drop 2.5V at rated current for the full time range adjustment. OFF State Leakage Current 5mA 230VAC 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 Protection Circuitry Encapsulated Dielectric Breakdown 2000V RMS terminals to mounting surface Function Diagram Insulation Resistance 100 M Mechanical V = Voltage INTERVAL (IMPULSE-ON) Mounting ** Surface mount with one 10 (M5 x 0.8) screw NO = Normally Dimensions H 50.8 mm (2) W 50.8 mm (2) Open Contact D 38.4 mm (1.51) NC = Normally Termination 0.25 in. (6.35 mm) male quick connect terminals Closed Contact Environmental TD = Time Delay Operating/Storage R = Reset Temperature -40 to 60C / -40 to 85C = Undened Humidity 95% relative, non-condensing Time Weight 3.9 oz (111 g) **Must be bolted to a metal surface using the included heat sink compound. The maximum mounting surface temperature is 90C. Inrush: Non-repetitive for 16ms. 2016 Littelfuse Protection Relays & Controls Rev: 1-A-061016 www.littelfuse.com/thd2