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SL20.300
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Catalog excerpts

SL20.300 - 1

Data sheet Input: 3 AC 400V / 3 AC 480V Output: 24...28V / 480W (600W) 92% efficiency Ideal for parallel operation Simple fusing Input Input voltage Output SL20.300: 3 AC 400 V, – 15 %, + 20 % SL20.301: 3 AC 480 V, – 15 %, + 20 % (SL20.100: AC 230 V, s. separate data sheet) 47-63 Hz, Suitable for IT power systems Output voltage Rated Tolerances • Continuous operation • Short term (1 min) at 24 V/20 A SL20.300: 340-479 V ACresp. 450-700 V DC SL20.301: 408-576 V AC resp. 550-820 V DC SL20.300: 300-550 V AC resp. 370-790 V DC SL20.301: 360-620 V AC resp. 450-890 V DC Ambient temperature range Tamb Input current Inrush current Output noise suppression Radiated EMI values below EN50081-1, even Silent Switcher ™ when using long, unscreened output cables. Operation: 0°C...+70°C (>60°C: Derating) Storage: -25°C...+85°C Rated continuous loading with convection cooling To be fused with a 3 x 10A, B-type 'circuit-breaker' switch based on the usual thermomagnetic overload sensing principle (used anyway to fuse the input lines; unit has no internal fuses). Harmonic current emissions (PFC) Active transient filter incorporated, so transient resistance acc.to VDE 0160 / W2 (1300 V / 1.3 ms), for all load conditions. 24 V / 20 A (480 W) resp. 28 V / 18 A (504 W) 24 V / 25 A (600 W) resp. 28 V / 22 A (616 W) short-term also at 60 °C Voltage regulation better than 2% over all < 20 mVPP (i.e. < 0.1 %) incl. spikes 20 MHz bandwidth, 50 Ω measurement Over-voltage protection At 32 V ± 10%: switch to hiccup mode Front panel indicators: • Green LED on, when Vout > UT, where UT is ca. 2 V below Vout adjusted (24V...28V) • Red LED on, when 14 V < Vout< UT • Red LED flashes, when 0 V < Vout < 14 V Parallel operation Transient handling Inrush current limiting done with a fixed 47R resistor (not a thermistor) which is bridged after the unit is running, so losses are minimised. That means no reset time even at a warm-start. Fuse loading 24...28 V DC, adjustable by (covered) front panel potentiometer; preset: 24 V ±0.5% Adjusting range guaranteed To achieve current sharing the output V/I characteristic can be altered to be 'softer' (25V at 0.4A, 24V at 20A). This is done by repositioning a bridge connection (without opening the unit). Reverse power immunity > 30 V Efficiency, Reliability etc.* Efficiency 310.000 h acc. to Siemensnorm SN 29500 (24 V/20 A, Vinnom, Tamb = +40 °C) Life cycle (electrolytics) The unit exclusively uses longlife electrolytics, specified for +105°C (cf. ’The SilverLine’, p.2). High reliability, as • only four aluminium electrolytics and • no small aluminium electrolytics are used. For further information see data sheets „The SilverLine“, „SilverLine Family Branches“ and mechanics data sheet Order information Order number 400 V input 480 V input Screw mounting set, two needed per unit

Open the catalog to page 1
SL20.300 - 2

Data sheet Output V/I characteristic (typ.) Construction / Mechanics * • WxHxD • Free space for ventilation • Weight 220 mm x 124 mm x 102 mm (+ DIN rail) above/below 70 mm recommended left/right 25 mm recommended 1.8 kg Design advantages: • All connection blocks are easy to reach as mounted at the front panel. • PVC insulated cable can be used for all connections, as the connection blocks are mounted in the cooler area on the underside of the unit. Output voltage Vout [V] Housing dimensions and Weight Vout < ca. 14V: Hiccup mode 28V / Parallel 28V / Single 24V / Parallel 24V / Single...

Open the catalog to page 2

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