TDM120AL

**Time Delay Relays** Dedicated - Delay-on-Make 

## ~~TD~~ M / T ~~DM~~ H / TD ~~M~~ L SERI ~~ES~~ 

## Delay-on-Make Timer 

## CEWE® 

## * 

*8-pin models UL listed when used in combination with P1011-6 socket only. 

## **Description** 

The TDM/TDMH/TDML Series is a delay-on-make timer that combines accurate digital circuitry with isolated, DPDT relay contacts in an industry standard 8-pin plug-in package. DIP switch adjustment allows precise selection of the time delay over the full time delay range. The TDM/TDMH/TDML Series is the product of choice for custom control panel and OEM designers. 

Operation (Delay-on-Make) 

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8-PIN<br>**----- End of picture text -----**<br>


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 relay energizes and remains energized until input voltage is removed. 

Reset: Removing input voltage resets the time delay and output. 

## **Wiring Diagram** 

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Relay contacts are isolated.<br>V<br>L1 N/L2<br>**----- End of picture text -----**<br>


## **Features & Benefits** 

|FEATURES|BENEFITS|
|---|---|
|**Wide delay range**<br>**(0.1s to 2.8h)**|User selectable via DIP switches for fine tuning to<br>individual applications.|
|**Microcontroller based**|Repeat Accuracy + / - 0.1%|
|**Dip switch adjustment**|Provides first time setting accuracy of +/-2%|
|**Setting accuracy +/-2%**|Provides flexibility for use in most applications|
|**LED indication**<br>**Isolated 10A, DPDT**<br>**output contacts**|Provides visual indication of time delay status<br>Allows control of loads for AC or DC voltages|



## **Accessories** 

## **BZ1 Front Panel Mount Kit** 

Provides an easy method of through-the-panel mounting of 8- or 11-pin plug-in timers, flashers, and other controls. 

## **Ordering Information** 

|MODEL<br>TDM120AL<br>TDM12DL<br>TDM230AL<br>TDM24AL<br>TDM24DL<br>TDMH120AL<br>TDMH24AL<br>TDML110DL<br>TDML120AL<br>TDML12DL<br>TDML24DL|INPUT VOLTAGE<br>120VAC<br>12VDC<br>230VAC<br>24VAC<br>24VDC/28VDC<br>120VAC<br>24VAC<br>110VDC<br>120VAC<br>12VDC<br>24VDC/28VDC|DELAY RANGE<br>1 - 1023s in 1s increments<br>1 - 1023s in 1s increments<br>1 - 1023s in 1s increments<br>1 - 1023s in 1s increments<br>1 - 1023s in 1s increments<br>10 - 10230s in 10s increments<br>10 - 10230s in 10s increments<br>0.1 - 102.3s in 0.1s increments<br>0.1 - 102.3s in 0.1s increments<br>0.1 - 102.3s in 0.1s increments<br>0.1 - 102.3s in 0.1s increments|
|---|---|---|



If you don’t find the part you need, call us for a custom product 800-843-8848 

## **NDS-8 Octal 8-pin Socket** 

8-pin 35mm DIN rail or surface mount. Surface mounted with two #6 screws or snaps onto a 35 mm DIN rail. Uses PSC8 hold-down clips. 

## **PSC8 or PSC11 Hold-down Clips** 

Securely mounts plug-in controls in any position. Provides protection against vibration. Use PSC8 with NDS-8 Octal Socket or PSC11 with NDS-11 Socket. Sold in sets of two. 

## **P1011-6 Octal Socket for UL listing*** 

8-pin surface mount socket with binder head screw terminals. Rated 10A @  600VAC. 

## **C103PM (AL) DIN Rail** 

35 mm aluminum DIN rail available in a 36 in. (91.4 cm) length. 

© 2016 Littelfuse Protection Relays & Controls www.littelfuse.com/tdm-tdmh-tdml 

Rev: 1-A-062116 

**Time Delay Relays** Dedicated - Delay-on-Make 

## ~~TD~~ M / T ~~DM~~ H / TD ~~M~~ L SERI ~~ES~~ 

## **Specifications** 

## **Binary Switch Operation** 

**Time Delay Type** Digital integrated circuitry **Range*** 0.1 - 102.3s in 0.1s increments 1 - 1023s in 1s increments 10 - 10,230s in 10s increments **Repeat Accuracy** ±0.1% or 20ms, whichever is greater **Setting Accuracy** ±2% or 50ms, whichever is greater **Reset Time** ≤ 50ms **Recycle Time** During Timing - TDMH: ≤ 500ms TDM, TDML: ≤ 300ms 

**Time Delay vs. Temperature & Voltage** ±2% **Indicator** LED glows during timing; relay is de-energized **Input Voltage** 12, 24, or 110 VDC; 24, 120, or 230VAC **Tolerance 12VDC & 24VDC/AC** -15% - 20% **110VAC/DC to 230VAC** -20% - 10% **AC Line Frequency** 50/60 Hz **Power Consumption** ≤ 2.25W **Output Type** Electromechanical relay **Form** DPDT **Rating** 10A resistive @ 120/240VAC & 28VDC; 1/3 hp @ 120/240VAC **Life** Mechanical - 1 x10[7] ; Electrical - 1 x 10[6] **Protection Polarity** DC units are reverse polarity protected **Isolation Voltage** ≥ 1500V RMS input to output **Mechanical Mounting** Plug-in socket **Dimensions H** 81.3 mm (3.2”); **W** 60.7 mm (2.39”); **D** 45.2 mm (1.78“) **Termination** Octal 8-pin plug-in **Environmental Operating/Storage Temperature** -20° to 65°C / -30° to 85°C **Weight** ≅ 6 oz (170 g) 

## **Function Diagram** 

## DELAY-ON-MAKE (ON-DELAY) 

V = Voltage NO = Normally Open Contact NC = Normally Closed Contact TD = Time Delay R = Reset = Undefined Time 

*For CE approved applications, power must be removed from the unit when a switch position is changed. 

© 2016 Littelfuse Protection Relays & Controls www.littelfuse.com/tdm-tdmh-tdml 

Rev: 1-A-062116