LDT481 Series is a high power switching mode power supplies with three phase input voltage 400 – 500 VAC, delivering 480 W of output power, covering output voltages from 24 to 72 V (model dependent). Their compact size, high efficiency and excellent reliability together with easy installation make them fit demanding applications where compactness and high power are needed. LDT481 Series are suitable for SELV and PELV circuitry (up to 48 VDC models) and are designed to be mounted on DIN rail and installed inside a protective enclosure. 3 phase AC input 400 – 500 VAC Overload 150% High Efficiency and compact size Up to 50°C operating temperature with no derating User settable current limitation (Hiccup or Constant mode) Easy parallelable for power increase Natural convection cooling 72 V output model as standard Automation Process Control Communication Instrumentation Equipment LDT481 Series 2 LDT481-12 400 - 500 VAC / 520 - 725 VDC 3 12 VDC 40 A LDT481-24 400 - 500 VAC / 520 - 725 VDC 3 24 VDC 20 A LDT481-48 400 - 500 VAC / 520 - 725 VDC 3 48 VDC 10 A LDT481-72 400 - 500 VAC / 520 - 725 VDC 3 72 VDC 6.7 A Technical parameters are typical, measured in laboratory environment at 25°C and 400 VAC / 50 Hz, at nominal values, after minimum 5 minutes of operation. Input AC Voltage Range1 Rated, three phase (UL certified) Operating 400 – 500 VAC 340 – 550 VAC Input DC Voltage Range 520 – 725 VDC Input Frequency 47 - 63 Hz Input AC Current Input DC Current Vin = 400 VAC 1.3 A Vin = 500 VAC 1.1 A Vin = 520 VAC 1.2 A Vin = 725 VAC 0.9 A ≤ 50 A Inrush Peak Current ≤ 0.15 mA Touch (Leakage) Current Internal Protection Fuse None, external fuse must be provided Recommended External Protection It is strongly recommended to provide external surge arresters (SPD) according to local regulations 1 Fuse 3x 10 AT or 3x MCB 10 A C curve In case of 2 phase operation, reduce the output load to 50% of the nominal value. Output Power Rated Voltage (Adjustable Voltage Range) Continuous Current Overload Limit (Constant Current Mode) Overload Limit (Hiccup Mode) (max. 5s) Load Regulation Ripple & Noise2 Hold up Time LDT481-12 LDT481-24 LDT481-48 LDT481-72 LDT481-12 LDT481-24 LDT481-48 LDT481-72 LDT481-12 LDT481-24 LDT481-48 LDT481-72 LDT481-12 LDT481-24 LDT481-48 LDT481-72 LDT481-12 LDT481-24 LDT481-48 / LDT481-72 LDT481-12 LDT481-24 / LDT481-48 / LDT481-72 480 W 12 VDC (12 – 15 VDC) 24 VDC (23 – 28 VDC) 48 VDC (45 – 55 VDC) 72 VDC (72 – 85 VDC) 40 A 20 A 10 A 6.7 A 44 A 22 A 11 A 7.5 A 60 A 30 A 15 A 10 A ≤ 2.5% ≤ 1.0% ≤ 0.5% ≤ 150 mVpp ≤ 100 mVpp ≥ 20 ms [email protected] LDT481 Series Protections Output Over Voltage Protection Status Signals Parallel Connection3 Efficiency Dissipated Power 2 3 3 Overload, short circuit: Constant current or Hiccup mode (user settable) Thermal protection Output overvoltage LDT481-12 LDT481-24 LDT481-48 LDT481-72 DC OK - green LED OVERLOAD - red LED DC OK - dry contact (NO, 24 VDC / 1 A) Possible for power or redundancy (with external ORing module) LDT481-12 LDT481-24 / LDT481-48 LDT481-72 LDT481-12 LDT481-24 / LDT481-48 LDT481-72 ≥ 18 VDC ≥ 33 VDC ≥ 68 VDC ≥ 100 VDC > 87.5% > 93.5% > 94% < 69 W < 34 W < 31 W Ripple and Noise are measured with 20 MHz bandwidth, probe terminated with a 0.1μF MKP parallel capacitor. Pay attention, set the current limitation mode jumper on C.C. mode when connecting more units in parallel. NOTE: Power rating, losses, efficiency, ripple, thermal behaviour and start-up may change outside of the nominal rated input range. Contact factory for details. Operating Temperature UL certified up to 50°C (Start-up type tested: - 40°C)4 - 40 to + 70°C Storage Temperature - 40 to + 80°C Derating - 4.5 W/°C over 50°C Humidity Non-condensing 5 - 95% RH Life Time Expectancy Overvoltage Category Pollution Degree Protection Class At 25°C ambient 75% load 63200 h (7.2 years) III (EN50178) 2 (IEC60664-1) Class I 4.2 kVDC 2.2 kVDC 0.75 kVDC Protection Degree Input to Output Input to Ground Output to Ground UL508 (certified) EN60950 (reference) EN50178 (reference) EN55011 (CISPR11) EN55022 (CISPR22) EN61000-4-2 EN61000-4-3 EN61000-4-4 EN61000-4-5 EN61000-4-11 EN60529 Vibration sinusoidal IEC 60068-2-6 Shock IEC 60068-2-27 Isolation Voltage Standards & Approvals EMC Emission EMC Standards EMC Immunity 4 Class A Class A Level 3 Level 3 Level 3 Level 4 Level 2 IP20 5-17.8 Hz: ±1.6 mm; 17.8-500 Hz: 2g 2Hours / axis (X,Y,Z) 30 g 6 ms, 20 g 11 ms; 3 bumps / direction, 18 bumps total) Possible at nominal voltage with load derating. Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2016 Bel Power Solutions & Protection BCD.00845_AB Asia-Pacific +86 755 298 85888 LDT481 Series 4 INPUT CONNECTION 3 phase: L1 = Phase 1 L2 = Phase 2 L3 = Phase 3 = Earth ground DC: L1 = + Positive DC L2 = - Negative DC L3 = do not connect = Earth ground OUTPUT CONNECTION + = Positive DC - = Negative DC Dry contact = NC 1 AC/DC input 2 4 DC output (load) Diagnostic Output (dry contact, NC output OK) Green LED: Output OK 5 Red LED: Overload 6 Output voltage adjustment 7 Selectable limitation mode 3 Signaling: DC OK: dry contact NO COM Weight 1.3 kg Dimensions 80 x 127 x 137.5 mm Mounting Rail Connection Terminals Case Material Screw type header (16 – 10 AWG) Screw type header (10 – 6 AWG) ) for output on 12 V model Aluminum IEC 60715/H15/TH35-7.5(-15) 1.5 – 6 mm2 6 - 16 mm2 Figure 1. Mechanical Drawing NUCLEAR AND MEDICAL APPLICATIONS - Products are not designed or intended for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice. [email protected]