Datasheet
Solid-State Switching Devices for Resistive Loads
Solid-State Relays
SIRIUS 3RF22 solid-state relays,
three-phase, 45 mm
4/75
Siemens IC 10 · 2011
4
1)
I
max
provides information about the performance of the solid-state relay.
The actual permitted rated operational current I
e
can be smaller depend-
ing on the connection method and cooling conditions.
Note:
The required heat sinks for the corresponding load currents can
be determined from the characteristic curves (see note on
Technical Information, page 4/1). The minimum thickness values
for the mounting surface must be observed.
Circuit diagrams
Order No. I
max
1)
I
e
acc. to IEC 60947-4-3 I
e
acc. to UL/CSA Power loss
at I
max
Minimum load
current
Max. leakage
current
at R
thha
/T
u
= 40 °C at R
thha
/T
u
= 40 °C at R
thha
/T
u
= 50 °C
AK/WAK/WAK/WW A mA
Main circuit
3RF22 30-. AB.. 30 0.57 30 0.57 30 0.44 81 0.5 10
3RF22 55-1AB..
55 0.18 50 0.27 50 0.19 151 0.5 10
3RF22 55-2AB..
20 1.83 20 1.58
3RF22 55-3AB.. 50 0.27 50 0.19
3RF22 30-. AC.. 30 0.33 30 0.33 30 0.25 122 0.5 10
3RF22 55-1AC..
55 0.09 50 0.15 50 0.1 226 0.5 10
3RF22 55-2AC..
20 1.19 20 1.02
3RF22 55-3AC.. 50 0.15 50 0.1
Order No. Rated impulse withstand capacity I
tsm
I
2
t value
AA
2
s
Main circuit
3RF22 30-....5 300 450
3RF22 55-....5
600 1800
Type 3RF22 ..-.AB.5 3RF22 ..-.AC.5
Main circuit
Controlled phases 2-phase 3-phase
Rated operational voltage U
e
V AC 48 ... 600 48 ... 600
• Operating range V AC
40 ... 660 40 ... 660
• Rated frequency Hz
50/60 ± 10 % 50/60 ± 10 %
Rated insulation voltage U
i
V 600 600
Rated impulse withstand voltage U
imp
kV 6 6
Blocking voltage V
1200 1200
Rage of voltage rise V/µs
1000 1000
Type 3RF22 ..-.A.3. 3RF22 ..-.A.4.
Control circuit
Method of operation AC operation DC operation
Rated control supply voltage U
s
V 110 4 ... 30
Rated frequency
of the control supply voltage
50/60 ± 10 % --
Control supply voltage, max. V
121 30
Typical actuating current mA
15 30
Response voltage V
90 4
Drop-out voltage V
< 40 1
Operating times
• ON-delay ms 40 + max. one half-wave 1 + max. one half-wave
• OFF-delay ms
40 + max. one half-wave 1 + max. one half-wave
Two-phase controlled,
DC control supply voltage
Three-phase controlled,
DC control supply voltage
A1 +
A2 -
1L1 L235L3
2T1 T246T3
NSB0_01694
A1 +
A2 -
1L1 3L2 5L3
2T1 4 6T2 T3
NSB0_01696
© Siemens AG 2010