Solid-State Switching Devices for Resistive Loads Solid-State Relays 3RF22 solid-state relays, three-phase, 45 mm Order No. 1) I max provides information about the performance of the solid-state relay. The actual permitted rated operational current I e can be smaller depen- ding on the connection method and cooling conditions. Note: The required heat sinks for the corresponding load cur- rents can be determined from the characteristic curves, page 22. The minimum thickness values for the mounting surface must be observed. 20 Siemens · 2009 Imax1) Ie acc. to IEC 60947-4-3 Ie acc. to UL/CSA Power loss at Imax Minimum load current Max.
leakage current at Rthha/Tu = 40 °C at Rthha/Tu = 40 °C at Rthha/Tu = 50 °C A K/W A K/W W A Main circuit 30 0.57 30 0.57 30 0.44 81 0.5 10 55 0.18 50 0.27 50 0.19 151 0.5 10 20 1.83 20 1.58 50 0.27 50 0.19 30 0.33 30 0.33 30 0.25 122 0.5 10 55 0.09 50 0.15 50 0.1 226 0.5 10 20 1.19 20 1.02 50 0.15 50 0.1 Order No. Rated impulse withstand capacity Itsm A Rated impulse withstand capacity Itsm I2t value A2s Main circuit 3RF22 30-....5 300 450 3RF22 55-....5 600 1800 Type 3RF22 ..-.AB.5 3RF22 ..-.AC.5 Main circuit Controlled phases Two-phase Three-phase Rated operational voltage Ue V • Operating range V • Rated frequency Hz 48 ... 600 48 ... 600 40 ... 660 40 ...
660 50/60 ± 10 % 50/60 ± 10 % Rated insulation voltage Ui V 600 600 Rated impulse withstand voltage Uimp 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 Us 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 1 Operating times • ON-delay ms • OFF-delay ms 40 + max. one half-wave 1 + max. one half-wave 40 + max. one half-wave 1 + max. one half-wave