Supply voltage	Control output		Eight-mode Timer	Four-mode Timer
24 to 240 VAC/DC	Contact output, DPDT (time-limit DPDT, or time-limit SPDT + instantaneous SPDT) Changed using a switch.	Model	H3DK-M2	H3DK-S2
24 to 240 VAC/DC	Contact output, SPDT (time-limit SPDT)	Model	H3DK-M1	H3DK-S1
12 VDC	Contact output, DPDT (time-limit DPDT, or time-limit SPDT + instantaneous SPDT) Changed using a switch.	Model	H3DK-M2A	H3DK-S2A
12 VDC	Contact output, SPDT (time-limit SPDT)	Model	H3DK-M1A	H3DK-S1A

Specifications

Time Ranges

Time range setting	0.1 s	1 s	10 s	1 min	10 min	1 h	10 h	100 h
Set time range	0.1 to 1.2 s	1 to 12 s	10 to 120 s	1 to 12 min	10 to 120 min	1 to 12 h	10 to 120 h	100 to 1,200 h
Scale numbers	12

Note: When the main dial is set to “0” for all settings, the output will operate instantaneously

Ratings

*Power supply voltage 1**		24 to 240 VAC/DC, 50/60 Hz 2 12 VDC 2
Allowable voltage fluctuation range		24 to 240 VAC/DC: 85% to 110% of rated voltage 12 VDC: 90% to 110% of rated voltage
Power reset		Minimum power-OFF time: 0.1 s
Reset voltage		10% of rated voltage
Voltage input		24 to 240 VAC/DC High level: 20.4 to 264 VAC/DC, Low level: 0 to 2.4 VAC/DC 12 VDC High level: 10.8 to 13.2 VDC, Low level: 0 to 1.2 VDC
Power consumption *3	H3DK-M2/-S2	At 240 VAC: 6.6 VA max. *4
	H3DK-M1/-S1	At 240 VAC: 4.5 VA max. *4
	H3DK-M2A/-S2A	At 12 VDC: 0.9 W max.
	H3DK-M1A/-S1A	At 12 VDC: 0.6 W max.
Control output		Contact output: 5 A at 250 VAC with resistive load (cosφ = 1), 5 A at 30 VDC with resistive load *5, 0.15 A max. at 125 VDC with resistive load, 0.1A at 125 VDC with L/R of 7 ms. The minimum applicable load is 10 mA at 5 VDC (P reference value). Contact materials: Ag-alloy + Gold plating
Ambient operating temperature		-20 to 55°C (with no icing)
Storage temperature		-40 to 70°C (with no icing)
Ambient operating humidity		25% to 85%

*1. When using a 24-VDC power supply voltage, there will be an inrush current of approximately 0.25 A. Allow for this
inrush current when turning ON and OFF the power supply to the Timer with device with a solid-state output, such
as a sensor.
*2. DC ripple: 20% max.
*3. The power consumption is for mode A after the Timer times out.
For the H3DK-M[], the maximum power consumption is given, including the current consumed by the input circuit.
*4. Refer to DC Power Consumptions (Reference Information) on Catalog for DC power consumptions.
*5. The control output ratings are for one H3DK operating alone. If you operate two or more Timers side by side, refer
to Installation Pitch and Output Switching Capacity (Reference Values) on the Catalog.
*6. 125 VDC: 0.15 A max. with resistive load, 125 VDC: 0.1 A with L/R of 7 ms.
Minimum load: 10 mA at 5 VDC (P level, reference value)

Characteristics

Accuracy of operating time		±1% of FS max. (±1% ±10 ms max. at 1.2-s range) *
Setting error		±10% of FS ±0.05 s max. *
Minimum input signal width		50 ms* (start input)
Influence of voltage		±0.5% of FS max. (±0.5% ±10 ms max. at 1.2-s range)
Influence of temperature		±2% of FS max. (±2% ±10 ms max. at 1.2-s range)
Insulation resistance		100 MΩ min. at 500 VDC
Dielectric strength		Between current-carrying metal parts and exposed non-current-carrying metal parts: 2,000 VAC 50/60 Hz for 1 min. Between control output terminals and operating circuit: 2,000 VAC 50/60 Hz for 1 min. Between contacts not located next to each other: 1,000 VAC 50/60 Hz for 1 min.
Impulse withstand voltage		24 to 240 VAC/VDC: 5 kV between power terminals, 5 kV between current-carrying metal parts and exposed non-current-carrying metal parts 12 VDC: 1 kV between power terminals, 1.5 kV between current-carrying metal parts and exposed non-current-carrying metal parts
Noise immunity		Square-wave noise generated by noise simulator (pulse width: 100 ns/1 μs, 1-ns rise): ±1.5 kV
Static immunity		Malfunction: 4 kV, Destruction: 8 kV
Vibration resistance	Destruction	0.75-mm single amplitude at 10 to 55 Hz for 2 h each in 3 directions
Vibration resistance	Malfunction	0.5-mm single amplitude at 10 to 55 Hz for 10 min each in 3 directions
Shock resistance	Destruction	1,000 m/s² 3 times each in 6 directions
Shock resistance	Malfunction	100 m/s² 3 times each in 6 directions
Life expectancy	Mechanical	10 million operations min. (under no load at 1,800 operations/h)
Life expectancy	Electrical	100,000 operations min. (5 A at 250 VAC, resistive load at 360 operations/h)
Degree of protection		IP30 (Terminal block: IP20)
Weight		Approx. 120 g

* With the H3DK-M[], if the voltage exceeds 26.4 VAC/DC in mode C, D, or G, the OFF trigger signal characteristics are
as follows:
Accuracy of operating time: ±1% ±50 ms max.
Setting error: ±10% +100 ms, −50 ms max.
Minimum input signal width: 100 ms