Industrial Automation

H3FA

Solid-state Timer

H3FA

DIP Model Timer for PC Board Use Provides Contact and Solid-state Output

last update: August 1, 2016

Time Ranges

Model	Rated time	Time setting range
H3FA-A	1 s	0.1 to 1 s
H3FA-AU	10 s	1 to 10 s
H3FA-SA	1 min	0.1 to 1 min
H3FA-SAU	10 min	1 to 10 min
H3FA-B	6 s	0.6 to 6 s
H3FA-BU	60 s	6 to 60 s
H3FA-SB	6 min	0.6 to 6 min
H3FA-SBU	60 min	6 to 60 min

Note: 1. The above timing ranges apply when the internal variable resistor of H3FA is used.
2. The external variable resistor may also be used by opening the terminal connected to the internal variable
resistor.
3. Wire the appropriate terminal to select a time setting range. Refer to Rated Time and Terminal Connections on
Data Sheet for details.

Ratings

Item	H3FA-A/ H3FA-B H3FA-AU/ H3FA-BU	H3FA-SA/ H3FA-SB H3FA-SAU/ H3FA-SBU
Rated supply voltage	5 V DC, 6V DC, 12V DC, 24 V DC *1	5/6 V DC 1 12/24 V DC 1, *2
Operating voltage range	5 V DC: 90% to 110% of rated supply voltage 6, 12, 24 V DC: 85% to 110% of rated supply voltage
Power consumption	5, 6 V DC: approx. 230 mW 12 V DC: approx. 270 mW 24 V DC: approx. 330 mW	5/6 V DC: approx. 80 mW 12 V DC: approx. 100 mW 24 V DC: approx. 240 mW
Control outputs	Contact output: SPST-NO + SPST-NC, 3 A at 250 V AC with resistive load, Minimum applied load: 10 mA at 5 V DC (Failure level: P, reference value)	Solid-state output: 150 mA max. at 30 V DC Residual voltage: 1.0 V max.
Ambient temperature	Operating: -10°C to 55°C (with no icing) Storage: -25°C to 65°C (with no icing)
Ambient humidity	35% to 85%

Characteristics

Accuracy of operating time	±0.5% FS max. 1, 3
Setting error	0 to 30 % FS max. (at 20°C , at rated voltage)
Reset time	10 ms max.
Influence of voltage	±1% FS max. (2% FS max. for 5, 6, 5/6 V DC-operated models)
Influence of temperature	±5% FS max. *1
Insulation resistance	100 MΩ min. (at 500 V DC)
Dielectric strength	1,500 V AC, 50/60 Hz for 1 min (between control output and operating circuit) 2 1,000 V AC, 50/60 Hz for 1 min (between contacts not located next to each other) 2
Vibration resistance	Destruction: 10 to 55 Hz with 0.375-mm single amplitude in 3 directions for 2 hour each Malfunction: 10 to 55 Hz with 0.25-mm single amplitude in 3 directions for 10 minutes each
Shock resistance	Destruction: 1,000 m/s² 3 times each in 6 directions on 3 axes Malfunction: 100 m/s² 3 times each in 6 directions on 3 axes
Life expectancy	Mechanical: 10,000,000 operations min. (under no load at 1,800 operations/h) 2 Electrical: 100,000 operations min. (3 A at 250 V AC, resistive load at 1,800 operations/h) 2
Approved safety standards	UL508, CSA C22.2 No.14
Weight	Contact output models: approx. 15 g Solid-state output models: approx. 10 g

*1. Add or subtract 10 ms to the ratings when using a timer with a rated time of 1 s.
*2. Applicable to contact output models.
*3. This value assumes that the adjustment on the H3FA is used. (It does not apply if an externally connected resistor is
used. For details, refer to External Resistors and Operating Time (Reference Value) on Data Sheet for details.)

last update: August 1, 2016

Product Category

Control Components
- Timers
  - Delay Relays
    - H3FA

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