Littelfuse TDMB411, TDMB Series, Delay on Make/Delay on Break Timer, 120VAC, 0.1 - 102.3s Time Setting, 8 Pins, SPDT Contact Form

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SKU: TDMB411
Regular price $255.63
Rated voltage
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The TDMB combines both delay-on-make and delay-on-break functions into one plug-in package. Selection of the time period is accomplished with dual switches, one for the on delay and the other for the off delay. SPDT or DPDT output options provide isolated, 10A switching capability.

Operation (Delay-on-Make/Delay-on-Break)
Input voltage must be applied at all times. The output relay is de-energized. Upon closure of the initiate switch, the green LED glows and the delay-on-make time delay (T1) begins. At the end of T1, the output relay energizes and the red LED glows. When the initiate switch opens, the green LED turns OFF and the delay-on-break time delay (T2) begins. At the end of T2, the output relay de-energizes and the red LED turns OFF. Reset: Removing input voltage resets time delay and output. Opening the initiate switch during the delay-on-make delay, resets T1. Closing the initiate switch during the delay-on-break delay, resets T2.

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

Time Delay
Type Microcontroller 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 ≤ 150 ms
Time Delay vs Temp. & Voltage ≤ ±2%
Control LED Indicator Green; on when the initiate switch is closed
Input
Voltage 12 or 24VDC; 24, 120, or 230VAC;
24 to 240VAC/DC; 12 to 48VDC
Tolerance 12VDC & 24VDC/AC         -15 %–20 %
110 to 230VAC/DC            -20 %–10 %
AC Line Frequency/DC Ripple 50/60 Hz / ≤ 10%
Power Consumption AC ≤ 2VA; DC ≤ 2W
Output
Type Electromechanical relay
Form SPDT or DPDT
Rating 10A resistive @ 120/240VAC & 28VDC;
1/3 hp @ 230VAC
Life Mechanical - 1 x 10⁷ ; Electrical - 1 x 10⁵
Max. Switching Voltage 250VAC
Relay LED Indicator Red; on when output relay energizes
(not included on 12VDC units)
Protection
Insulation Resistance ≥ 100M
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 (2.4”);
D 45.2 mm (1.8”)
Termination Octal 8-pin plug-in, magnal 11-pin plug-in
Environmental
Operating/Storage Temperature -20° to 60°C / -30° to 85°C
Weight ≅ 6 oz (170 g)