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Download Switching power supply input 22–30 Vac
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Switching power supply input 22–30 Vac 128 • Standard input voltage 24 Vac • Dissipated power inferior to 10% • Overload/short circuit protection with automatic restore • Input protection fuse • Compact design saves panel space 150 130 55 130 75 Block diagram BLOCK DIAGRAMS / NOTES AC + + FILTER AC + AC AC + – – AC AC + + FILTER AC + AC APPLICATIONS – – PWM The CABUR power supply units series CS .../24 with 22 - 30 Vac input allow transformers with standard secondary voltage of 24 Vac to be used, more economical and more readily available than transformers with special voltages. They are suitable for use in SELV and PELV circuits. In PELV circuits, in which one safety low voltage pole has to be earthed, taking care not to earth the secondary winding of the transformer too, but only one pole, normally the negative, of the 24 Vdc output of the power supply effectively used as control voltage. The earthing together of a pole of the secondary of the transformer and a pole of the 24 Vdc of the power supply unit would inevitably damage the power supply unit itself. The purpose of the earthing connection is to discharge the interference trapped by the input filter and must be as short as possible. Do not connect the earth terminal in SELV circuits. The input and output of the power supply units in the CS .../24 series are not isolated. The safety isolation function is therefore assigned to the external transformer which has to conform with the standard CEI 14-6 and/or EN60742. + PWM VERSIONS CS624/24 Cod. XAS06VC CS1224/24 Cod. XAS12VC INPUT TECHNICAL DATA Rated voltage Frequency Current at lout max Protection fuse 22 – 30 Vac 50 – 60 Hz 6.6 A T 10 A 22 – 30 Vac 50 – 60 Hz 13.2 A T 16 A (inside mounted) 24 Vdc adjustable ± 8% 8A 6A <1% < 100 mVpp > 15 ms Hiccup circuit, auto reset – – 24 Vdc adjustable ± 8% 14 A 12 A <1% < 100 mVpp > 15 ms Hiccup circuit, auto reset – – ≥ 90% < 16 W -10 – 60°C, -0.2 A/°C over 45°C – – 0.5 kVac / 60 s IP 20 – EN 50081-1, EN 50082-2 varistor - 4.5 kA 8/20 in input terminal blocks 2.5 mm2, pluggable metallic 0.7 kg ca. vertical on rail, allow 20 mm spacing between adjacent components PR/3/AC - PR/3/AS ≥ 90% < 32 W -10 – 50°C, -0.5 A/°C over 45°C – – 0.5 kVac / 60 s IP 20 – EN 50081-1, EN 50082-2 varistor - 4.5 kA 8/20 in input terminal blocks 2.5 mm2, pluggable metallic 0.9 kg ca. vertical on rail, allow 20 mm spacing between adjacent components PR/3/AC - PR/3/AS – – OUTPUT TECHNICAL DATA Voltage Maximum current Continuous current Load regulation Ripple at lout max Hold up time Overload/short circuit protection Output signal Parallel connection APPROVALS GENERAL TECHNICAL DATA Efficiency Dissipated power Operating temperature Input / output isolation Input / ground isolation Output / ground isolation Protection degree Standard / Approvals EMC standards Surge immunity Connection terminal blocks Housing material Approximate weight Mounting information Mounting rail according to IEC60715/TH35 Mounting rail according to IEC60715/G32