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Omron H3FA-A DC5 Solid-state Timer

The Omron H3FA-A DC5 Timer is designed for stable timing performance using an allowable voltage variable range of 90 to 110% of the power supply voltage. It supports 4 time ranges and operates in Power ON-delay, Cumulative modes for controlled timing applications. The timer provides Time-limit SPST-NO and Time-limit SPST-NC output types with a reset time of 10 ms max. to ensure dependable switching response. Built with a PCB terminal connecting method, this model is manufactured by Omron, listed under Omron Timers, and part of the Omron H3FA Series.

BrandOmron
ProductTimers
Model NumberH3FA-A DC5

Omron H3FA-A DC5 Solid-state Timer - Technical Specifications

SpecificationValue
Rated power supply voltage5 VDC Ripple 3% max.
Allowable voltage variable range90 to 110% of the power supply voltage
Number of time ranges4
Operation modePower ON-delay, Cumulative
Control output (Type)Time-limit: SPST-NO ,Time-limit: SPST-NC
Control output (Contact output)Resistive load: 3 A at 250 VAC Minimum applicable load: 10 mA at 5 VDC (failure level: P Reference value)
Operating resettingTime-limit operation/power-OFF resetting and external resetting, Integrating operation/power-OFF resetting and external resetting
Connection methodPCB terminal
Power consumptionApprox. 230 mW
Ambient temperature rangeOperating: -10 to 55 ℃ (with no icing) Storage: -25 to 65 ℃ (with no icing)
Accuracy of operating timeΒ±0.5% FS max. (Β±0.5% Β±10 ms in a range of 1 s)
Setting error0 to +30% FS max. (at 20 ℃, rated voltage)
Influence of voltageΒ±2% FS max.
Influence of temperatureΒ±5% FS max. (Β±5% Β±10 ms in a range of 1 s)
Insulation resistance100 MΞ© min. (at 500 VDC)
Dielectric strengthBetween control output terminals and operating circuit: 1,500 VAC 50/60 Hz 1 min Between non-continuous contacts: 1,000 VAC 50/60 Hz 1 min
Vibration resistanceDestruction: 10 to 55 Hz, 0.375 mm single amplitude each in 3 directions for 2 h Malfunction: 10 to 55 Hz, 0.25 mm single amplitude each in 3 directions for 10 min
Shock resistanceDestruction: 1,000 m/s2, 3 times each in 6 directions Malfunction: 100 m/s2, 3 times each in 6 directions
Ambient temperature rangeOperating: -10 to 55 ℃ (with no icing) Storage: -25 to 65 ℃ (with no icing)
Ambient humidity rangeOperating: 35 to 85%
Reset time10 ms max.
Life expectancy (relay output)Electrical: 100,000 operations min. (3 A at 250 VAC, resistive load at 1800 operations/h) Mechanical: 10 million operations min. (under no load at 1,800 operations/h)
WeightApprox. 15 g

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