Business > Industrial Devices > Automation Controls Top > Components & Devices > Relays / Couplers > Safety Relays > SF Relay Slim type > Rating/Performance

SF Relay Slim 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
CAD data　 Catalogs/Datasheets　　
FAQ

Click here for information on compliance with standards

Rating/Performance

Coil data

Operating characteristics such as "Operate voltage" and "Release voltage" are influenced by mounting conditions or 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 20°C)
4 poles	2 Form A 2 Form B	12 V DC	Max. 75% V of rated coil voltage (Initial)	Min. 10% V of rated coil voltage (Initial)	30 mA	400 Ω	Approx. 360 mW	110% V of rated coil voltage
		18 V DC			20 mA	900 Ω
		21 V DC			17.1 mA	1,225 Ω
		24 V DC			15 mA	1,600 Ω
		48 V DC			7.5 mA	6,400 Ω
	3 Form A 1 Form B	12 V DC			30 mA	400 Ω
		18 V DC			20 mA	900 Ω
		21 V DC			17.1 mA	1,225 Ω
		24 V DC			15 mA	1,600 Ω
		48 V DC			7.5 mA	6,400 Ω
6 poles	4 Form A 2 Form B	12 V DC			41.7 mA	288 Ω	Approx. 500 mW
		18 V DC			27.8 mA	648 Ω
		21 V DC			23.8 mA	882 Ω
		24 V DC			20.8 mA	1,152 Ω
		48 V DC			10.4 mA	4,608 Ω
	5 Form A 1 Form B	12 V DC			41.7 mA	288 Ω
		18 V DC			27.8 mA	648 Ω
		21 V DC			23.8 mA	882 Ω
		24 V DC			20.8 mA	1,152 Ω
		48 V DC			10.4 mA	4,608 Ω
	3 Form A 3 Form B	12 V DC			41.7 mA	288 Ω
		18 V DC			27.8 mA	648 Ω
		21 V DC			23.8 mA	882 Ω
		24 V DC			20.8 mA	1,152 Ω
		48 V DC			10.4 mA	4,608 Ω

Note) For with LED indication, the rated operating current will increase by approximately 2 mA due to the LED display.

*	square, pulse drive (JIS C 5442)

Return to top

Specifications

Item		Characteristics
Item		4 poles		6 poles
Contact data	Contact arrangement	2 Form A 2 Form B	3 Form A 1 Form B	4 Form A 2 Form B	5 Form A 1 Form B	3 Form A 3 Form B
	Contact resistance (initial)	Max. 100 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	250 V AC, 125 V DC
	Max. switching current	6 A (Reduce by 0.1 A/°C for temperatures 70 to 85°C)
	Min. switching load (reference value) *1	1 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	1,500 Vrms for 1 min (detection current: 10 mA)
	Between contact sets	7-8/9-10 between open contacts 2,500 Vrms for 1 min (detection current: 10 mA)		7-8/11-12 between open contacts 9-10/13-14 between open contacts 11-12/13-14 between open contacts 2,500 Vrms for 1 min (detection current: 10 mA)
	Between contact sets	3-4/5-6 between open contacts 3-4/7-8 between open contacts 5-6/9-10 between open contacts 4,000 Vrms for 1 min (detection current: 10 mA)		3-4/5-6 between open contacts 3-4/7-8 between open contacts 5-6/9-10 between open contacts 7-8/9-10 between open contacts 4,000 Vrms for 1 min (detection current: 10 mA)
	Between contact and coil	4,000 Vrms for 1 min (detection current: 10 mA)
Time characteristics (initial)	Operate time	Max. 20 ms at rated coil voltage (at 20°C, without bounce)
	Response time*2	Max. 8 ms at rated coil voltage (at 20°C, without bounce, without diode) *4
	Release time	Max. 20 ms at rated coil voltage (at 20°C, without bounce)
Shock resistance	Functional	200 m/s² (half-sine shock pulse: 11 ms, detection time: 10 μs)
Shock resistance	Destructive	1,000 m/s² (half-sine shock pulse: 6 ms)
Vibration resistance	Functional	10 to 55 Hz (at double amplitude of 1.5 mm, detection time: 10 μs)
Vibration resistance	Destructive	10 to 55 Hz (at double amplitude of 1.5 mm)
Expected life	Mechanical life	Min. 10 x 10⁶ ope. (switching frequency: at 180 times/min)
Conditions	Conditions for usage, transport and storage*3	Ambient temperature: -40 to +85°C Humidity: 5 to 85% RH (Avoid icing and condensation) *5
Unit weight		Approx. 20 g		Approx. 23 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	Response time is the time after the coil voltage turns off until the time when form A contact turns off.
*3	The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to "7.Usage, transport and storage conditions" in SF Relays Cautions For Use.
*4	Response time of with diode type is Max. 12 ms (without bounce when rated coil voltage is applied).
*5	When the temperature is 70 to 85°C, reduce the max. continuous carrying current by 0.1 A/°C.

Return to top

Electrical life

Type	load	Switching capacity	Number of operations
2 Form A 2 Form B 3 Form A 1 Form B 4 Form A 2 Form B 5 Form A 1 Form B 3 Form A 3 Form B	Resistive load	6 A 250 V AC	Min. 100 x 10³ ope. (switching frequency at 20 times/min)
		6 A 30 V DC	Min. 100 x 10³ ope. (switching frequency at 20 times/min)
		1 A 250 V AC	Min. 500 x 10³ ope. (switching frequency at 30 times/min)
		1 A 30 V DC	Min. 500 x 10³ ope. (switching frequency at 30 times/min)
	AC 15: inductive load	2 A 240 V AC	Min. 100 x 10³ ope. (switching frequency at 20 times/min, cosΦ = 0.3)
	DC 13: inductive load	1 A 24 V DC	Min. 100 x 10³ ope. (switching frequency at 20 times/min, L/R = 48 ms)