STW20K
12440-0702-03
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Technical data
Rated supply voltage Us
DC/AC 24
– 240 V 0/50/60 Hz
Tolerance
DC 20.4 - 297 V AC 20 - 264 V 45 -62 Hz
Power consumption
< 1 W
< 4 VA
Input
Transformer
1-3 STWA1 or STWA1H
Rated thermal continuous current Icth
AC 100 A
Thermal rated short-time current Ith
AC 300 A for 10 s
Limits
operating mode
On, Off
Switching threshold on
Ion ≥ AC 1 A
Switching threshold Off
Ion ≤ AC 0.4 A
tolerance
± 20 %
delay
< 300 ms
Off delay
< 300 ms
Output relay K1, K2 (Alarm 1, 2)
2 x 1 change over contact
Switching voltage
max. AC 300 V; DC 300 V
min. voltage / current
12 V 10 mA
conventional thermal current Ith
max. 5 A
Switching power
max. AC cos φ = 1
1250 VA 250 V * 5 A
Utilization category
Rated operational current
AC-15 Ie = 3 A Ue = 250 V
Rated operational voltage
DC-13 Ie = 2 A Ue = 24 V
DC-13 Ie = 0.4 A Ue = 120 V; Ie = 0.2 A Ue = 240 V
Recommended fuse NO
4 A time-lag or miniature circuit-breaker MCB B4
Recommended fuse NC
3,15 A time-lag
Test conditions
EN 61010-1
Rated impulse voltage
4000 V
Overvoltage category
III
Pollution degree
2
Rated insulation voltage Ui
300 V
On-period
100 %
EMC-tests
EN 61326-1 industrial environment
Emission
EN 61326-1; CISPR 11 Class B
Immunity
EN 61326-1
Electrical fast transient/burst
EN 61000-4-4 ±4.5 kV
Pulse 5/50 ns, f = 5 kHz, t = 15 ms, T = 300 ms
Surge immunity
IEC 61000-4-5 ±1 kV
Installation conditions
Permissible ambient temperature
-20 °C ... +65 °C
Permissible storage temperature
-
20 °C …+70 °C
Installation height
< 2000 m over N.N.
Climatic conditions
5-85% rel. F., no condensation
Permissible wiring temperature
-
5 °C …+70 °C
Vibration resistance EN 60068-2-6
2 … 13.2 Hz ±1 mm 13.2 ... 100 Hz 1 g
2…25 Hz ±1.6 mm 25 ... 150 Hz 5 g
