RCM60 Series 60 W DC-DC Converters The RCM Series converters are Melcher branded power supplies for railway and transportation applications. The input voltage ranges cover all common battery voltages from 12 to 110 V. The output delivers 60 W at 12, 15 or 24 V. The converters are designed for chassis mounting in an enclosed housing. Options available include - output ORing FET for redundant operation, input fuse and output voltage monitoring (solid state relay contact). Features Ultra-wide input voltage range Single output voltage Overtemperature, overvoltage, overcurrent and short-circuit protection 20 ms interruption time (EN50155 Class S3) Low inrush current Primary shutdown input Conformal coated PCB Extremely high efficiency and high power density Extremely wide ambient temperature range -40 to 70C Dimensions 50 x 32 x 172 mm (1.97 x 1.26 x 6.77 in) Compliant to EN50155, EN50121-3-2, EN61373 and AREMA Fire & Smoke inspected according EN45545-2 and NFPA 130 RoHS Compliant 5 year warranty Safety approved to the latest edition of IEC 62368-1 and CSA/UL 62368-1 12RCM60 Series is E-mark approved to the UN Regulation R10 (Report No. E13*10R06/01*15947*00) 10R - 06 15947 Table of Contents Description........................................................................................1 Electromagnetic Compatibility (EMC) .............................................10 Model Selection ................................................................................2 Immunity to Environmental Conditions ...........................................13 Functional Description ......................................................................3 Mechanical Data .............................................................................14 Electrical Input Data .........................................................................4 Safety and Installation Instructions .................................................15 Electrical Output Data.......................................................................6 Accessories ....................................................................................17 Description of Options ......................................................................9 belfuse.com/power-solutions BCD.00989 Rev B, 12 Oktober 2021RCM60 Series 60 W DC-DC Converters Model Selection Table 1: Standard models 2 Input voltage Output Power Efficiency Model Options 1 1 V V V V V V I P min typ i min i min i cont i max i max o nom o nom o nom V V V V V V A W % 12 5.0 60 87 88 12RCM60-12 7.2 8 36 40 15 4.0 60 87 88 12RCM60-15 24 2.5 60 87 88 12RCM60-24 D, Q, F, K 12 5.0 60 87 88 XRCM60-12 14.4 16.8 137.5 154 15 4.0 60 87 88 XRCM60-15 24 2.5 60 87 88 XRCM60-24 1 Short time see table 2 for details 2 Efficiency at T = 25 C, V I A i nom, o nom Part Number Description 12 RCM 60 -24 D Q F K Operating input voltage V (continuously): i cont 8 36 VDC ................................................................12 16.8 137.5 VDC ........................................................X Series .............................................................................RCM Output power: 60 W .......................................................................60 Nominal output voltage: 12 V ...........................................................................-12 15 V ...........................................................................-15 24 V ...........................................................................-24 Auxiliary functions and options: Output Voltage Monitor ................................................. D ORing FET....................................................................Q Built-in Fuse ..................................................................F Pluggable Connectors ................................................. K Available combinations of options: Note: The sequence of options must follow the order above. RCM60-xx (K) Note: All models are RoHS-compliant for all six substances. RCM60-xxD (K) RCM60-xxDF (K) RCM60-xxDQ (K) RCM60-xxDQF (K) Example: XRCM60-24DQFK: DC-DC converter, input voltage range 16.8 to 137.5 V continuously, output providing 24 V / 2.5 A, monitoring relay, shutdown input, interruption time 20 ms, integrated ORing FET, pluggable connectors, operating ambient temperature T = 40 to 70 C, RoHS-compliant for all six substances. A Product Marking Type designation, applicable safety approval and recognition marks, CE mark, pin allocation, and product logo. Input voltage range and input current, nominal output voltage and current, degree of protection, batch no., serial no., and data code including production site, version (modification status) and date of production. tech.support psbel.com belfuse.com/power-solutions BCD.00989 Rev B, 12 Oktober 2021 2021 Bel Power Solutions & Protection Page 2 of 17