Datasheet
SF3
2
en_ds_61405_0001: 120106D
COIL DATA
ELECTRICAL LIFE
REFERENCE DATA
Part number
Coil nominal voltage
VDC
Operate voltage
VDC
Release voltage
VDC
Coil resistance
Ω (
±10%, 20°C)
Coil inductance
(mH)
SF3-5V 5
3.75
0.5
50 47
SF3-9V 9
6.75
0.9
162 145
SF3-12V 12
9.00
1.2
288 252
SF3-18V 18
13.50
1.8
648 551
SF3-21V 21
15.75
2.1
882 742
SF3-24V 24
18.00
2.4
1152 959
SF3-36V 36
27.00
3.6
2592 2097
SF3-48V 48
36.00
4.8
4608 3654
SF3-60V 60
45.00
6.0
7200 5612
Voltage Current Load type Frequency Duty cycle No. of contacts No. of ops.
250V AC 8A cos ϕ = 1 0.33Hz 50%
2
*2,*6
30,000
*4,*5
250V AC 6A cos ϕ = 1 0.33Hz 50%
4
*2
100,000
*4,*5
250V AC 2A cos ϕ = 1 0.33Hz 50%
4
*2
500,000
*4,*5
220V AC 30 / 3A
AC 15
*1
0.10Hz 10%
1
*3
200,000
*4,*5
220V AC 5.10A
cos ϕ = 0.60
0.20Hz 10%
1
*3
100,000
*4,*5
220V AC 4.43A cos ϕ = 0.35 0.20Hz 50%
1
*3
100,000
*4,*5
220V AC 1.45A
cos ϕ = 0.35
0.20Hz 50%
1
*3
300,000
*4,*5
24V DC 6A resistive 0.33Hz 50%
4
*2
400,000
*4,*5
24V DC 2A resistive 0.50Hz 50%
4
*2
2,000,000
*4,*5
24V DC 3A
DC 13
*1
0.33Hz 10%
1
*3
50,000
*4,*5
24V DC 3A L/R = 40ms 0.33Hz 10%
1
*3
100,000
*4,*5
*1 EN 60947-5-1: 1997; table C.1
*2 Breathing hole closed
*3 Breathing hole open
*4 Ambient temperature +70°C
*5 Dielectric strength according to EN61810-1:2004.
*6 Normally open contacts
Coil voltage characteristicsLoad limit curve
-50 -40 -30 -20 -10 0 10 20 807060504030 10090 110
Ambient temperature [°C]
0.1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
1.0
1.7
1.6
1.5
1.4
1.3
1.2
1.1
U
coil
/ U
coil rated
Permissible coil
voltage without
contact load
(nominal coil
resistance)
Minor increase due to
temperature compensation
Average value of pick-up voltage
without previous coil heating
Permissible coil voltage
with contact load of 2 x 10A
and close mounting of 5 relays
(nominal coil resistance)
Average value of drop-out voltage
without previous coil heating
Loads in the range under the curve can be switched safely.
The arc will extinguish before the opposite contact makes.
Permissable coil voltages and pick-up and drop-out
characteristics at various ambient temperatures.