SRF24A-S2-5 BELIMO Rotary actuator with fail-safe for ball valves and butterfly valves

Technical data                                                               Electrical data. Nominal voltage AC/DC 24 V Nominal voltage frequency 50/60 Hz Nominal voltage range AC 19.2...28.8 V / DC 21.6...28.8 V Power consumption in operation 5 W Power consumption in rest position 2.5 W Power consumption for wire sizing 7.5 VA Auxiliary switch 2 x SPDT, 1 x 10% / 1 x 11...90% Switching capacity auxiliary switch 1 mA...3 A (0.5 A inductive), AC 250 V Connection supply / control Cable 1 m, 2 x 0.75 mm² Connection auxiliary switch Cable 1 m, 6 x 0.75 mm² Parallel operation Yes (note the performance data0                                              Functional data;                                                       Torque motor 20 Nm Torque fail-safe 20 Nm Direction of motion fail-safe Deenergised NC, valve closed (A – AB = 0%) Manual override by means of hand crank and locking switch Running time motor 75 s / 90° Running time fail-safe <20 s @ -20...50°C / <60 s @ -30°C Sound power level, motor 45 dB(A) Position indication Mechanical Service life Min. 60'000 fail-safe positions Safety data ;                                                        Protection class IEC/EN III, Safety Extra-Low Voltage (SELV) Power source UL Class 2 Supply Protection class auxiliary switch IEC/EN II, reinforced insulation Degree of protection IEC/EN IP54 Degree of protection NEMA/UL NEMA 2 Enclosure UL Enclosure Type 2 EMC CE according to 2014/30/EU Low voltage directive CE according to 2014/35/EU Certification IEC/EN IEC/EN 60730-1 and IEC/EN 60730-2-14 UL Approval cULus according to UL60730-1A, UL60730-2-14 and CAN/CSA E60730-1 The UL marking on the actuator depends on the production site, the device is UL-compliant in any case Mode of operation Type 1.AA.B Rated impulse voltage supply / control 0.8 kV Rated impulse voltage auxiliary switch 2.5 kV Pollution degree 3 Ambient humidity Max. 95% RH, non-condensing Ambient temperature -30...50°C [-22...122°;