OMRON H3FA lineup

last update: September 24, 2012

List of Models

Model		H3FA-A	H3FA-B	H3FA-SA	H3FA-SB	H3FA-AU	H3FA-BU	H3FA-SAU	H3FA-SBU
Operation/resetting system (See note.)		Time-limit operation/power-OFF resetting and external resetting, Integration operation/power-OFF resetting and external resetting				Instantaneous operation, time-limit resetting/external resetting
Time-limit contact		Contact output (SPST-NO + SPST-NC)		Solid-state output		Contact output (SPST-NO + SPST-NC)		Solid-state output
Instantaneous contact		---
Mounting method		Surface mounting (with IC socket or direct mounting on PC Board)
Time range		1 s to 10 min	6 s to 60 min	1 s to 10 min	6 s to 60 min	1 s to 10 min	6 s to 60 min	1 s to 10 min	6 s to 60 min
Supply voltage	5 V DC	H3FA-A 5DC	H3FA-B 5DC	---	---	H3FA-AU 5DC	H3FA-BU 5DC	---	---
	6 V DC	H3FA-A 6DC	H3FA-B 6DC	---	---	H3FA-AU 6DC	---	---	---
	12 V DC	H3FA-A 12DC	H3FA-B 12DC	---	---	H3FA-AU 12DC	H3FA-BU 12DC	---	---
	24 V DC	H3FA-A 24DC	H3FA-B 24DC	---	---	H3FA-AU 24DC	H3FA-BU 24DC	---	---
	5/6 V DC	---	---	H3FA-SA 5/6DC	H3FA-SB 5/6DC	---	---	H3FA-SAU 5/6DC	H3FA-SBU 5/6DC
	12/ 24 V DC	---	---	H3FA-SA 12/24DC	H3FA-SB 5/6DC	---	---	H3FA-SAU 12/24DC	H3FA-SBU 12/24DC

Note:Note: The desired operation/resetting system is selected by short-circuiting and opening the specified terminals.

last update: September 24, 2012

OMRON H3FA dimension

last update: May 11, 2015

H3FA-A, H3FA-B, H3FA-SA, H3FA-SB

H3FA-AU, H3FA-BU, H3FA-SAU, H3FA-SBU

last update: May 11, 2015

OMRON H3FA specification

last update: August 01, 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 01, 2016

OMRON H3FA catalog

• Catalog
• CAD

English

Global Edition

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.

*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.

Catalog Name	Catalog Number [size]	Last Update
H3FA Data Sheet	- [1530KB]	Aug 12, 201620160812	H3FA Data Sheet
Recommended Replacement Periods and Periodic Replacement for Preventive Maintenance	- [43KB]	Mar 12, 201820180312	Recommended Replacement Periods and Periodic Replacement for Preventive Maintenance

• NO. H3FA
• TYPE:Timers Delay Relays Copyright Statement
• DATE:2021-06-08
• Associated products:
  H5AN Digital Timer/Features H5S Digital Time Switch/Features