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H3DK-G

Star-delta Timer

H3DK-G

DIN Track-mounted, 22.5-mm-width Standard Timer Series

Time Ranges

Time range setting t1x1 t1x10
Star set time (t1) range 1 to 12 s 10 to 120 s

Star-Delta transfer time (t2) Select from 0.05, 0.1, 0.25, or 0.5 s.

Ratings

H3DK-G, -GA H3DK-GE
Power supply voltage *1 24 to 240 VAC/DC, 50/60 Hz *2
12 VDC *2
240 to 440 VAC (50/60 Hz) *6
Allowable voltage fluctuation
range
24 to 240 VAC/DC: 85% to 110% of rated voltage
12 VDC: 90% to 110% of rated voltage
80 % to 110% of rated voltage
Power reset Minimum power-OFF time: 0.5 s
Reset voltage 10% of rated voltage
Power
consumption
H3DK-G At 240 VAC: 6.6 VA max. *3 At 440 VAC: 34 VA max.
H3DK-GA At 12 VDC: 0.9 W max.
Control output Contact output (Time-limit output: relay, Star
output: SPDT, Delta output: SPDT):
5 A at 250 VAC with resistive load (cosφ = 1)
5 A at 24 VDC with resistive load *3, *4
Ith 2 A
AC-15 120 VAC: 1.5 A
AC-15 240 VAC: 1 A
AC-15 440 VAC: 0.3 A
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. Refer to DC Power Consumptions (Reference Information) on Catalog for DC power consumptions.
*4. 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.
*5. 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)
*6. For the H3DK-GE, approx. 6 A of inrush current will flow when the power supply is turned ON. When selecting the
       device connected to the Timer, allow leeway in the current ratings.

Characteristics

H3DK-G, -GA H3DK-GE
Accuracy of operating
time
±1% of FS max.
Setting error ±10% of FS ±0.05 s max.
Transfer time Total error ± (25% of transfer time + 5 ms) max.
Influence of voltage ±0.5% of FS max.
Influence of temperature ±2% of FS max.
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.
Between current-carrying metal parts and
exposed non-current-carrying metal parts:
2,500 VAC 50/60 Hz for 1 min.
Between control output terminals and
operating circuit: 2,500 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
H3DK-G:
24 to 240 VAC/VDC: 3 kV between power
terminals, 4.5 kV between current-carrying
metal parts and exposed non-currentcarrying
metal parts
H3DK-GA:
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
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
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)
10 million operations min.
(under no load at 1,800 operations/h)
Electrical 100,000 operations min. (5 A at 250 VAC,
resistive load at 360 operations/h)
100,000 operations min. (0.3 A at 440 VAC,
resistive load at 1,800 operations/h)
Degree of protection IP30 (Terminal block: IP20)
Weight Approx. 120 g

* Except for the H3DK-GE

Installation Pitch and Output Switching Capacity (Reference Values)

The relation between the installation pitch and the load current is shown in the following graph. (Except for the H3DK-GE)
If Timer is used under load conditions that exceed the specified values, the temperature inside the Timer will increase, reducing the life expectancy of internal parts.

H3DK-G Specifications 7

Testing Method

Tested Timer: H3DK-G
Applied voltage: 240 VAC
Installation pitch: 0, 5, 10, and 50 mm

H3DK-G Specifications 8

Applicable standards

Safety standards cURus: UL 508/CSA C22.2 No. 14 *1
EN 50274: Finger protection, back-of-hand proof
EN 61812-1: Pollution degree 2, Overvoltage category III *2
CCC: Pollution degree 2, Overvoltage category II, section DB14048.5-2008 part 5-1
LR: Test Specification No. 1-2002 Category ENV 1.2 *1
EMC (EMI) EN61812-1
Radiated Emissions: EN 55011 class B
Emission AC Mains: EN 55011 class B
Harmonic Current: EN 61000-3-2 *1
Voltage Fluctuations and Flicker: EN61000-3-3 *1
(EMS) EN61812-1
ESD Immunity: EN 61000-4-2: 6 kV contact discharge, 8 kV air discharge
Radiated Radio-Frequency Electromagnetic Field Immunity (AM Radio Waves):
EN 61000-4-3: 10 V/m (80 MHz to 1 GHz)
Burst Immunity: EN 61000-4-4: 2 kV power line, 1 kV I/O signal line
Surge Immunity: EN 61000-4-5: 2 kV common mode, 1 kV differential mode

*1. This standard is not applicable to the H3DK-GE.
*2. This standard is not applicable if the output is used with a rating that exceeds 250 VAC.

I/O

Input None
Output Control output The star output is turned OFF when the dial set value is reached and the delta output is
turned ON after the preset transfer time elapses.