This LDD240-WU DC/DC converter is the optimal response to the applications where compactness and high reliability are requested. It is isolated and offers a wide range of input and output voltages. Simple but elegant look and ease of installation make it ideal for various industrial applications. Up to 240 W output power (voltage dependent) Converts any voltage between 11 V and 55 V to any voltage between 5 V and 55 V High efficiency and compact size Constant current or hiccup mode limitation, user settable Digital Power regulation Isolated topology (4.2 kVDC) Modbus over USB interface for control and monitoring Multiple protections integrated Parallelable for power or redundancy (integrated ORing circuitry) Industrial machine control Process control Energy management Remote control systems 2 LDD240-WU LDD240-WU 12 - 48 VDC (11 - 55 VDC) 12 A 5 55 VDC 10 A Technical parameters are typical, measured in laboratory environment at 25C and 24 VDC input and output voltage, at nominal values, after minimum 5 minutes of operation. Nominal 12 - 48 VDC Input DC Voltage Range UL Certified 11 - 55 VDC Input DC Current Rated 12 A Input Overvoltage > 60 V active shutdown Protections Reverse polarity Fuse 20 A mini ATO blade (not user replaceable) 20 A Fuse or MCB 20 A C curve Recommended External Protection Use DC rated devices Output Power 240 W Rated Voltage / Adjustable Voltage Range 5 - 55 VDC Continuous Current / Power 10 A / 240 W (see Figure 1) Overload Limit in Constant Current Mode 11 A / 264 W (see Figure 1) Overload Limit in Hiccup Mode (max. 5s) 15 A / 360 W (see Figure 1) Short Circuit Peak Current 18 A 4% 5 VDC, Load Regulation 2% 12 VDC, 1.5% 24 VDC 1 Ripple & Noise 200 mVpp Hold up Time 5 ms Overload and short circuit: Constant current or Hiccup mode (user settable) Protections Thermal protection Output overvoltage Output Over Voltage Protection 120% of Vout active self-tracking 7 segment, 2 digit display 3 programming keys User Interface DC OK - dry contact (NO, 24 VDC / 1 A) Modbus over USB interface Possible for power or redundancy with 2 Parallel Connection integrated ORing circuitry Efficiency 77% - 92% (depending on Vin / Vout) Dissipated Power < 28 W (depending on Vin / Vout) 1 Ripple and Noise are measured with 20 MHz bandwidth, probe terminated with a 0.1 F MKP parallel capacitor. 2 Pay attention, set the operating mode to parallel when connecting more units in parallel, see Instruction Manual for details. NOTE: Power rating, losses, efficiency, ripple, thermal behaviour and start-up may change outside of the nominal rated input range. Contact factory for details. tech.support psbel.com