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SF Relay Double Contact type

Lineup
- SF Relays Flat type Safety relay compliant with Safety standards
- SF Relays Slim type Slim type Safety relay compliant with Safety standards
- SF Relays Double contact type Flat type (double contact) Safety relay compliant with Safety standards
- SF-M Relays Flat type safety relays (1 Form A 1 Form B)
- SF-Y Relays Compact Flat type Safety relay compliant with European safety standards
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Basic Information

Part Number

Rating/Performance

Dimensions

Coil data

Operating characteristics such as 'Operate voltage' and 'Release voltage' are influenced by mounting conditions, ambient temperature, etc.
Therefore, please use the relay within ±5% of rated coil voltage.
'Initial' means the condition of products at the time of delivery.

Contact arrangement		Rated coil voltage	Operate voltage * (at 20°C)	Release voltage * (at 20°C)	Rated operating current (±10%, at 20°C)	Coil resistance (±10%, at 20°C)	Rated operating power	Max. allowable voltage (at 60°C)
4 poles	2 Form A 2 Form B	5 V DC	Max. 75% V of rated coil voltage (Initial)	Min. 10% V of rated coil voltage (Initial)	100 mA	50 Ω	500 mW	120% V of rated coil voltage
		12 V DC			41.7 mA	288 Ω
		24 V DC			20.8 mA	1,152 Ω
		48 V DC			10.4 mA	4,608 Ω
		60 V DC			8.3 mA	7,200 Ω
8 poles	4 Form A 4 Form B	5 V DC	Max. 75% V of rated coil voltage (Initial)	Min. 15% V of rated coil voltage (Initial)	100 mA	50 Ω	500 mW	120% V of rated coil voltage
		12 V DC			41.7 mA	288 Ω
		24 V DC			20.8 mA	1,152 Ω
		48 V DC			10.4 mA	4,608 Ω
		60 V DC			8.3 mA	7,200 Ω

*	square, pulse drive (JIS C 5442)

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Specifications

Item		Specifications
Contact data	Contact arrangement	2 Form A 2 Form B	4 Form A 4 Form B
	Contact resistance (initial)	Max. 30 mΩ (by voltage drop 6 V DC 1 A)
	Contact material	Au-flashed AgSnO₂ type
	Contact rating (resistive)	6 A 250 V AC, 6 A 30 V DC
	Max. switching power (resistive)	1,500 VA, 180 W
	Max. switching voltage	440 V AC, 30 V DC
	Max. switching current	6 A
	Min. switching load (reference value) *1	100 mA 5 V DC
Insulation resistance (initial)		Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength.)
Dielectric strength (initial)	Between open contacts	1,300 Vrms for 1 min (detection current: 10 mA)
	Between contact sets	2,500 Vrms for 1 min (detection current: 10 mA)
	Between contact and coil	2,500 Vrms for 1 min (detection current: 10 mA)
Time characteristics (initial)	Operate time	Max. 30 ms at rated coil voltage (at 20°C, without bounce)
Time characteristics (initial)	Release time	Max. 15 ms at rated coil voltage (at 20°C, without bounce, without diode)
Shock resistance	Functional	294m/s² (half-sine shock pulse: 11 ms, detection time: 10 µs)
Shock resistance	Destructive	980m/s² (half-sine shock pulse: 6 ms)
Vibration resistance	Functional	10 to 55 Hz at double amplitude of 2 mm (detection time: 10 µs)
Vibration resistance	Destructive	10 to 55 Hz at double amplitude of 2 mm
Expected life	Mechanical life	Min. 10 x 10⁶ (switching frequency 180 times/min)
Conditions	Conditions for usage, transport and storage *2	Ambient temperature: -40 to +70°C, Humidity: 5 to 85% RH (Avoid icing and condensation)
Unit weight		Approx. 38 g	Approx. 47 g

*1	This value is a rough indication of the lower limit at which switching is possible at micro load level. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load.
*2	For ambient temperature, please refer to the "GUIDELINES FOR RELAY USAGE".

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