11:1 and 12:1 ultra-wide input DC/DCs for ‘plug and play’ worldwide rail applications.
Totally railway-compliant, very reliable and affordable DC/DCs are currently readily available from RECOM with their brand-new RMD150 and RMD300 items, ranked at 150W and 300W specifically. With a solitary completely controlled outcome (24V or others, e.g. 110V), each item has an ultra-wide input series of 16.8 V to 137V constant, to consist of all typical international train nominals. The input variety expands to 14.4 V for 100ms and approximately 154V for 1 2nd, to ride via the dips and rises defined in rail conventional EN 50155. This enables to minimize the selection of designs and brings substantially logistic benefits for equipping, accessibility and cost problems. To enable supply failures, the RMDs includes 10ms hold-up at 24V input, and 20ms at 72/110 input. Effectiveness for both components is commonly 94%. As an instance, versus various other options with a typical performance of 90%, this indicates a decrease of power losses and warm dissipation in the end-application of 40% by utilizing the RECOM RMD-Models. 40% much less warm dissipation will undoubtfully increase the life time!
The components are metal cased, IP20-rated for all-natural convection, framework placing. The components are functioning from -40 ° C to +70 ° C and to 85 ° C for 15 mins at complete power constantly without derating. Hence, no power over-dimensioning is needed, just like various other options which require to derate over 55 ° C or 70 ° C. This satisfies the rail operating temperature level Course OT4 and expanded Courses ST1 and ST2. As a result of the superb performance the RMD systems can be installed in any kind of instructions without the requirement of added warm sinks. An ‘-E’ variation coming quickly, expands the start-up temperature level to -50 ° C. Certifications/compliance attained or pending consist of EN 50155, EN 50121-3-2 for EMC, EN 50124-1 for insulation control, EN 45545-2 risk degree HL1-HL3 for train fire safety and security and IEC/EN 61000-4-2,3,4,5 for EMC. Seclusion is strengthened quality, ranked 3.5 kVAC/5kVDC. The items are devices Course I and are developed for over-voltage group III (OVC III) to 2000m elevation (OVCII to 5000m) and contamination level 2 (PD2) atmospheres. The systems are not enveloped, which minimizes the weight and safes sources. Ecological criteria conformity consists of EN 60068 for temperature level screening and EN 61373 forever, shock and resonance in Course B body-mount applications. Integrity is additionally designed-in with a determined MTBF of 1.4 M humans resources at 40 ° C according to IEC 61709/UTE C80-810 for the RMD150 and 1.36 MHrs for theRMD300 Layout life time is twenty years, ranked beneficial life course L4, according to EN 50155.
The RMD collection items have input reverse polarity and inrush restriction and are completely secured versus input under-voltage and reverse polarity, over-temperature and outcome over-voltage, over-current and brief circuits. An outcome OR-ing diode is consisted of for paralleling results for raised power or redundancy or to utilize the RMD device to bill batteries. Control and surveillance functions consist of remote ON/OFF, outcome trim, present share pin, and a Power okay LED with linked volt-free calls.
Marco Kuhn, item supervisor Plug&& Play of RECOM remarks: “These are truly ‘plug and play’ products for global railway applications with their wide input, comprehensive specifications and certifications”.
Components consist of a two-year guarantee. Examples and OEM rates are readily available from all licensed representatives, or straight from RECOM.
To find out more, please see www.recom-power.com
