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© 2016 Littelfuse Protection Relays & Controls Time Delay Relays Dedicated - Interval www.littelfuse.com/tsd7 Rev: 1-A-061016 TSD7 SERIES L1 N/L2 Interval/Delay-on-Break Timer

Description

The TSD7 Series utilizes only two terminals connected in series with the load. Interval timing mode period is achieved by using a small portion of the AC sine wave allowing sufficient voltage for circuit operation. It can be used as an interval timer to control or pulse shape the operation of contactors, solenoids, relays, and lamp loads. The TSD7 Series can be wired to delay on the break of a switch for energy saving fan delays. Operation (Interval) Upon application of input voltage, the output energizes and the time delay begins. The output remains energized throughout the time delay. At the end of the time delay, the output de-energizes and remains de-energized until power is removed. Reset: Removing input voltage resets the time delay and the output. Operation (Delay-on-Break) Upon closure of SW1, the load is energized and the timer is reset (zero volts across its input terminals). Opening SW1 re- applies input voltage to the timer, the load remains energized and the time delay begins. At the end of the time delay, the output de-energizes. If SW1 is open when power is applied, the load will energize for the time delay then de-energize. Reset: Reclosing SW1 resets the timer. Features & Benefits FEATURES BENEFITS Microcontroller based Repeat Accuracy + / - 0.5%, + / -1% time delay accuracy Extended temperature range Rated to 75°C operating temperature to withstand high heat applications Compact, low cost design Allows flexiblility for OEM applications 1A steady solid-state output, 10A inrush 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 T wo terminal series load connections Provides quick and easy installation for new or existing systems Wiring Diagram V = Voltage L = Load S1 = Initiate Switch RT is used when external adjustment is ordered. Interval Delay-on- Break

Ordering Information

MODEL INPUT VOLTAGE ADJUSTMENT TIME DELAY MODEL INPUT VOLTAGE ADJUSTMENT TIME DELAY TSD7412S 120VAC Fixed 2s TSD761120S 230VAC Fixed 120s TSD7414M 120VAC Fixed 4m TSD761180S 230VAC Fixed 180s TSD7421 120VAC External 1 - 100s TSD7611S 230VAC Fixed 1s TSD7423 120VAC External 0.1 - 10m TSD7621 230VAC External 1 - 100s TSD7424 120VAC External 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 - Interval www.littelfuse.com/tsd7 Rev: 1-A-061016 Accessories P1004-13, P1004-13-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. P1015-64 (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. VTP(X)(X) Plug-on Adjustment Module Mounts on modules with in-line adjustment terminals. Rated at 0.25W at 55°C. Available in resistance values from 5KΩ to 5MΩ. Selection Table for VTP Plug-on Adjustment Accessory Time Delay VTP P/N Time Delay VTP P/N 1 - 1-100s 2 - 10-1000s 3 - 0.1-10m VTP5G VTP5K VTP5N 4 - 1-100m 5 - 10-1000m VTP5P VTP5R Selection Guide Specifications Time Delay Type Digital integrated circuitry Range 1s - 1000m in 5 adjustable ranges or fixed Repeat Accuracy ±0.5% or 20ms, whichever is greater Tolerance (Factory Calibration) ≤ ±10% Recycle Time ≤ 400ms 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 1A steady state, 10A inrush at 45°C Minimum Load Current 40mA Effective Voltage Drop (VLine-VLoad) Input Effective Drop 24VAC 3V 120VAC 4V 230VAC 6V 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) Function Diagrams INTERVAL (IMPULSE-ON) V = Voltage NO = Normally Open Contact NC = Normally Closed Contact TD = Time Delay R = Reset = Undefined Time DELAY-ON-BREAK L S1 = Initiate Switch O = Output L = Load TD = Time Delay R = Reset = Undefined Time TSD7 SERIES V = Voltage S1 =Initiate Switch NO = Normally Open Contact NC = Normally Closed Contact O = Output L = Load TD = Time Delay R = Reset = Undefined Time