H3RN-21 DC24

Solid-state Timer


24 VDC, Output Time-limit: DPST-NO, ON delay/Flicker OFF start/Flicker ON start/Interval/Pulse Operation , Time range: 0.1 min to 10 h (4 range), 8-pin

Rated supply voltage 24VDC
Control output (Type) Time-limit: DPST-NO
External connection method 8-pin round socket

Item list of H3RN

  • Ratings/Performance
Rated supply voltage24VDC
Operating voltage range85 to 110% of rated operating voltage
Power consumption ( Relay ON )0.5(at 24 VDC)
Power consumption ( Relay OFF )0.5(at 24 VDC)
Reset voltage10% max. of rated supply voltage
Number of time ranges4
Time ranges0.1min~1min / 1min~10min / 0.1h~1h / 1h~10h
Operating modeON delay, Flicker OFF start, Flicker ON start, Interval, Pulse Operation (use in interval mode, connect power supply terminals as pulse operation)
Control output (Type)Time-limit: DPST-NO
Control output (Contact output)Switching capacities (Resistive load (cosφ = 1)): 250VAC 3A
Minimum applicable load: 10 mA at 5 VDC (failure level: P Reference value)
Ambient temperatureOperating: -10 to 55℃
Storage: -25 to 65℃
Ambient humidity使用時: 35~85%
Accuracy of operating time±1% max.(FS)
Setting error-15 to 15% ±50 ms max. (FS)
Reset time0.1 s max. (including halfway reset)
Influence of voltage±2% FS max.
Influence of temperature±2% FS max.
Insulation resistance100 MΩ (at 500 VDC)
Dielectric strengthBetween operating power circuit and control output: 2,000 VAC 50/60 Hz for 1 min
Between contacts of different polarity: 2,000 VAC 50/60 Hz for 1 min
Between non-continuous contacts: 1000 VAC 50/60 Hz for 1 min
Impulse withstand voltageBetween power terminals: 1 kV
Noise immunity±1.5 kV square-wave noise by noise simulator (pulse width: 100 ns/1 us, 1-ns rise)
Vibration resistance (Destruction)10 to 55 Hz, 0.75-mm single amplitude each in 3 directions for 2 h
Vibration resistance (Malfunction)10 to 55 Hz, 0.5-mm single amplitude each in 3 directions for 10 min
Shock resistance (Destruction)980 m/s**2, 3 times each in 6 directions
Shock resistance (Malfunction)100 m/s**2, 3 times each in 6 directions
Mechanical life expectancy (relayoutput)10 million operations min. (under no load at 1,800 operations/h)
Electrical life expectancy (relay output)100,000 operations min. (3 A at 250 VAC, resistive load at 1800 operations/h)
Degree of protectionIP40 (excluding terminal section)
External connection method8-pin round socket
Weight (Main)Approx. 18 g
  • Dimensions

Caution: All_units_are_in_millimeters_unless_otherwise_indicated.

  • Time ranges

  • Operating chart


Solid-state Timer


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