HR / ER Series 144 / 288 Watt 10:1 DC-DC Converters The ER/HR Series of DC-DC converters represents versatile power supplies ideally suitable for use in transportation and other advanced electronic systems. The HR Series converters include a very broad input voltage range, very high efficiency, high reliability, low output voltage noise, and excellent dynamic response to load/line changes. HR converters can be connected to all conventional railway batteries. ER Series converters are optimized for connection to 110 V railway batteries. 111 Features 4.4 3 U Extremely wide input voltage range from 12 to 168 VDC 60 in the same converter (HR Series) 168 2.4 6.6 12 TE RoHS-compliant for all 6 substances 111 4.4 Class I equipment 3 U Compliant with EN 50155, EN 50121, EN 45545 60 Input over- and programmable undervoltage lockout 168 2.4 6.6 12 TE Shutdown function Inrush current limitation Interruption time 10 ms Adjustable output voltages 2 isolated outputs: no load, overload, and short-circuit proof Rectangular current limiting characteristic 111 4.4 Parallel operation with active current sharing 3 U Very high efficiency up to 94% 80 Immunity according to IEC 61000-4-2, -3, -4, -5, -6, -8, -9 168 3.2 6.6 16 TE All PCB boards protected by lacquer 111 4.4 Very high reliability 3 U 5 year warranty 80 168 3.2 6.6 16 TE Safety-approved to the latest edition of IEC/EN 62368-1 and UL/CSA 62368-1. 1 1 on request Table of Contents Description........................................................................................1 Electromagnetic Compatibility (EMC) .............................................19 Immunity to Environmental Conditions ...........................................21 Model Selection ................................................................................2 Functional Description ......................................................................5 Mechanical Data .............................................................................22 Electrical Input Data .........................................................................7 Safety and Installation Instructions .................................................25 Electrical Output Data.....................................................................10 Description of Options ....................................................................26 Auxiliary Functions .........................................................................16 Accessories ....................................................................................27 belfuse.com/power-solutions BCD.00185 Rev AP, 16 May 2022ER / HR Series 144 / 288 W 10:1 DC-DC Converters Description The converter inputs are protected against surges and transients. An input over- and undervoltage lockout circuitry disables the outputs, when the input voltage is outside of the specified range. To avoid high input currents at operation with high-voltage batteries, the inhibit input allows for adjusting the under voltage lockout to a suitable level, thus allowing the use of an appropriate external input fuse. The converters exhibit an inrush current limiter, preventing external circuit breakers and fuses from tripping at switch-on. The outputs are open- and short-circuit proof. Full input-to-output, input-to-case, output-to-case, and output to output isolation is provided. The converters are particularly suitable for railway applications. The HR converters can be supplied by all common railway batteries with 24 V, 36 V, 48 V, 72 V, 96 V, 110 V, and 120 V nominal voltage. The ER converters can be supplied by all common railway batteries with 96 V, 110 V, and 120 V nominal voltage. All PCB boards are coated with a protective lacquer. The case design allows operation at nominal load up to 71 C with natural cooling. If forced cooling is provided, the ambient temperature may exceed 71 C, but the case temperature must remain below 95 C. A temperature sensor disables the outputs when the case temperature T exceeds the limit. The outputs are auto matically re- C enabled, when the temperature drops below the limit. LED indicators display the status of the converter and allow for visual monitoring of the system at any time. The converters may either be plugged into a 19 rack system according to IEC 60297-3, or be chassis mounted. Two heat sinks of different size and cooling plates for chassis mounting (option B, B1) are available. Model Selection Table 1a: Model Selection of HR models Output 1 Output 2 Power Input voltage Efficiency Model Options 1 2 24 110 3 3 V I V I P V V V min typ min typ o nom o nom o nom o nom o nom i min i cont i max V A V A W V V V % % % % 4 12 20 - - 240 12 16.8 to 150 168 91 92.5 92 94 HR2320-9RG 4 12 12 - - 144 12 16.8 to 150 168 91 92.5 92 94 HRL2320-9RG 4 12 24 - - 288 12 16.8 to 150 168 91 92.5 92 94 HRP2320-9RG 4 15 16 - - 240 12 16.8 to 150 168 91 92.5 92 94 HR2540-9RG B, B1 4 15 10 - - 150 12 16.8 to 150 168 91 92.5 92 94 HRL2540-9RG 4 15 19.2 - - 288 12 16.8 to 150 168 91 92.5 92 94 HRP2540-9RG 4 48 4 - - 192 12 16.8 to 150 168 89.5 90.5 92 93 HR2880-9RG 4 48 5 - - 240 12 16.8 to 150 168 89.5 90.5 92 93 HRP2880-9RG 12 10 12 10 240 12 16.8 to 150 168 91 92.5 92 94 HR2320-9RG 12 6 12 6 144 12 16.8 to 150 168 91 92.5 92 94 HRL2320-9RG 12 12 12 12 288 12 16.8 to 150 168 91 92.5 92 94 HRP2320-9RG 15 8 15 8 240 12 16.8 to 150 168 91 92.5 92 94 HR2540-9RG B, B1 15 5 15 5 150 12 16.8 to 150 168 91 92.5 92 94 HRL2540-9RG 15 9.6 15 9.6 288 12 16.8 to 150 168 90 92.5 92 94 HRP2540-9RG 48 2 48 2 192 12 16.8 to 150 168 89.5 90.5 92 93 HR2880-9RG 48 2.5 48 2.5 240 12 16.8 to 150 168 89.5 90.5 92 93 HRP2880-9RG 5 24 10 - - 240 12 16.8 to 150 168 91 92.5 92 94 HR2320-9RG 5 24 6 - - 144 12 16.8 to 150 168 91 92.5 92 94 HRL2320-9RG 5 24 12 - - 288 12 16.8 to 150 168 91 92.5 92 94 HRP2320-9RG 5 30 8 - - 240 12 16.8 to 150 168 91 92.5 92 94 HR2540-9RG B, B1 5 30 5 - - 150 12 16.8 to 150 168 91 92.5 92 94 HRL2540-9RG 5 30 9.6 - - 288 12 16.8 to 150 168 91 92.5 92 94 HRP2540-9RG 5 96 2 - - 192 12 16.8 to 150 168 89.5 90.5 92 93 HR2880-9RG 5 96 2.5 - - 240 12 16.8 to 150 168 89.5 90.5 92 93 HRP2880-9RG 1 Efficiency at T = 25 C, V = 24 V, I , V A i o nom o nom 2 Efficiency at T = 25 C, V = 110 V, I , V A i o nom o nom 3 Short time see table 2 for details 4 Both outputs connected in parallel 5 Both outputs connected in series tech.support psbel.com belfuse.com/power-solutions BCD.00185 Rev AP, 16 May 2022 2022 Bel Power Solutions & Protection Page 2 of 28