The LDD family of DC/DC converters is an optimal response to the applications where compactness and high reliability are requested. All are isolated and offer a wide range of input voltages. Simple but elegant look and easy installation make them ideal for various industrial applications. High efficiency and compact size Isolated topology Wide Input voltage range Overload 125% Up to 50°C operating temperature with no derating Industrial machine control Process control Energy management Remote control systems LDD120 Series 2 LDD120-1212 12 VDC (10.5 - 18 VDC) 14 A - 8.0 A 12 VDC 7A LDD120-1224 12 VDC (10.5 - 18 VDC) 15.5 A - 9.0 A 24 VDC 5A LDD120-1248 12 VDC (10.5 - 18 VDC) 15.5 A - 9.0 A 48 VDC 2.5 A LDD120-2412 24 VDC (18 - 36 VDC) 7.5 A - 3.8 A 12 VDC 7A LDD120-2424 24 VDC (18 - 36 VDC) 8.5 A - 4.3 A 24 VDC 5A LDD120-4812 48 VDC (36 - 72 VDC) 4.5 A - 2.5 A 12 VDC 8A LDD120-4824 48 VDC (36 - 72 VDC) 4.3 A - 2.2 A 24 VDC 5A Technical parameters are typical, measured in laboratory environment at 25°C and nom. values, after min. 5 minutes of operation. PARAMETER Input DC Voltage Range Input DC Current Input Overvoltage Protection (active) Internal Protection Fuse (not user replaceable) Recommended External Protection (use DC rated devices) DESCRIPTION / CONDITION SPECIFICATION LDD120-1212 / LDD120-1224 / LDD120-1248 LDD120-2412 / LDD120-2424 LDD120-4812 / LDD120-4824 Vin = Min LDD120-1212 Vin = Max Vin = Min LDD120-1224 / LDD120-1248 Vin = Max Vin = Min LDD120-2412 Vin = Max Vin = Min LDD120-2424 Vin = Max Vin = Min LDD120-4812 Vin = Max Vin = Min LDD120-4824 Vin = Max LDD120-1212 / LDD120-1224 / LDD120-1248 LDD120-2412 / LDD120-2424 LDD120-4812 / LDD120-4824 LDD120-1212 / LDD120-1224 / LDD120-1248 LDD120-2412 / LDD120-2424 LDD120-4812 LDD120-4824 12 VDC (10.5 - 18 VDC) 24 VDC (18 - 36 VDC) 48 VDC (36 - 72 VDC) 14 A 8.0 A 15.5 A 9.0 A 7.5 A 3.8 A 8.5 A 4.3 A 4.5 A 2.5 A 4.3 A 2.2 A 19 VDC 38 VDC 76 VDC Fuse 20 AT Fuse 10 AT Fuse 8 AT Fuse 5 AT > MCB 25 A C curve > MCB 13 A C curve > MCB 6 A C curve LDD120-1212 / LDD120-1224 / LDD120-1248 LDD120-2412 / LDD120-2424 LDD120-4812 / LDD120-4824 [email protected] LDD120 Series 3 Output Power LDD120-1212 / LDD120-2412 / LDD120-4812 LDD120-1224 / LDD120-2424 / LDD120-4824 LDD120-1248 LDD120-1212 LDD120-1224 LDD120-1248 LDD120-2412 LDD120-2424 LDD120-4812 LDD120-4824 LDD120-1212 LDD120-1224 LDD120-1248 LDD120-2412 LDD120-2424 LDD120-4812 LDD120-4824 LDD120-1212 / LDD120-1224 LDD120-1248 LDD120-2412 LDD120-2424 LDD120-4812 LDD120-4824 LDD120-1212 / LDD120-1224 / LDD120-1248 / LDD120-2412 / LDD120-2424 / LDD120-4812 LDD120-4824 LDD120-1212 / LDD120-1224 / LDD120-1248 LDD120-2412 LDD120-2424 / LDD120-4812 LDD120-4824 LDD120-1212 Rated Voltage (Adjustable Voltage Range) Continuous Current Overload Limit Short Circuit Peak Current Load Regulation Ripple & Noise1 Hold up Time Output Over Voltage Protection Parallel Connection Protections Status Signals Efficiency Dissipated Power 1 LDD120-1224 / LDD120-1248 / LDD120-2412 / LDD120-2424 LDD120-4812 LDD120-4824 LDD120-1212 / LDD120-2412 / LDD120-4812 LDD120-1224 / LDD120-2424 / LDD120-4824 LDD120-1248 Possible for redundancy (with external ORing module) Overload/short circuit: Hiccup mode Thermal protection Output overvoltage DC OK - Green LED (all models) OVERLOAD - Status Signals red LED (LDD120-4812 only) DC OK dry contact (NO, 24 VDC / 1 A) (LDD120-4812 only) LDD120-1212 LDD120-1224 LDD120-1248 LDD120-2412 / LDD120-2424 LDD120-4812 / LDD120-4824 LDD120-1212 LDD120-1224 LDD120-1248 LDD120-2412 LDD120-2424 LDD120-4812 LDD120-4824 120 W 12 VDC (12 - 15 VDC) 24 VDC (23 – 27.5 VDC) 48 VDC (45 – 55 VDC) 7A 5A 2.5 A 7A 5A 8A 5A 9.0 A 7.0 A 3.3 A 9.0 A 6.5 A 12 A 6.5 A 11.5 A 5.8 A 14 A 10 A 20 A 12 A ≤ 0.5% ≤ 1.5% ≤ 20 mVpp ≤ 50 mVpp ≤ 20 mVpp ≤ 30 mVpp ≥ 4 ms ≥ 3 ms ≥ 5 ms ≥ 6 ms ≥ 18 VDC ≥ 33 VDC ≥ 68 VDC > 81% > 82% > 83% > 86% > 89% < 20 W < 25 W < 24 W < 14 W < 20 W < 15 W < 16 W Ripple and Noise are measured with 20 MHz bandwidth, probe terminated with a 0.1μF MKP parallel capacitor. NOTE: Power rating, losses, efficiency, ripple, thermal behaviour and start-up may change outside of the nominal rated input range. Contact factory for details. Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2016 Bel Power Solutions & Protection BCD.00762_AA Asia-Pacific +86 755 298 85888 LDD120 Series 4 Overtemperature protection (Start-up type tested: - 40°C)* Operating Temperature Derating - 40 to + 70°C - 3 W/°C over 50°C Storage Temperature - 40 to + 80°C Humidity Non-condensing 5 - 95% RH non condensing Life Time Expectation AT 25°C ambient 64000 h (7.3 years) Overvoltage Category Pollution Degree I (EN50178) 2 (IEC60664-1) Protection Class Class I Input to Output Input to Ground Output to Ground UL508 (reference) EN60950 (reference) EN50178 (reference) EN55022 EN55011 EN61000-4-2 EN61000-4-3 EN61000-4-4 EN61000-4-5 EN61000-4-11 Class A Class A Level 3 Level 3 Level 2 Level 2 Level 2 Protection Degree EN60529 IP20 Vibration sinusoidal IEC 60068-2-6 Shock IEC 60068-2-27 Isolation Voltage Safety Standards & Approvals Emission Immunity EMC Standards 2.1 kVDC 1.41 kVDC 0.75 kVDC 5-17.8 Hz: ±1.6 mm; 17.8-500 Hz: 2 g 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. Weight 0.5 kg Dimensions 54 x 115 x 110 mm Mounting Rail IEC 60715/H15/TH35-7.5(-15) Connection Terminals Screw type pluggable (24 - 12 AWG) Case Material Aluminum 2.5 mm² [email protected] LDD120 Series 5 Figure 1. Mechanical Drawing 1 DC input 2 DC output (Load) 3 Output voltage adjustment 4 Green LED: Output OK INPUT CONNECTION OUTPUT CONNECTION + = Positive DC - = Negative DC = Earth ground + = Positive DC - = Negative DC Signalling: DC OK (dry contact) NO COM 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. Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2016 Bel Power Solutions & Protection BCD.00762_AA Asia-Pacific +86 755 298 85888