RCM500

RCM500 BEL | Alldatasheet

Document overview

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• PDF pages: 17

Technical content

Features

• Optimized for 72 V or 110 V railway batteries
• Output voltage 24 V
• Closed housing for chassis mounting
• Extremely high efficiency and high power density
• Low inrush current
• 3 connectors: Input, output, auxiliary (option)
• Overtemperature, overvoltage, overcurrent, and short-circuit protection
• Many options available
• Compliant to EN 50155, EN 50121-3-2, AREMA
• RoHS-compatible for all 6 substances
• Fire and smoke: compliant to EN 45545 and NFPA 130
• 5 year warranty Safety-approved to the latest edition of IEC/EN 60950-1 and UL/CSA 60950-1 Table of Contents Page Page 1 pending

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 2 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Model Selection Table 1: Standard models Input voltage Output Power Efficiency 2 Model Options Vi min [V] Vi cont [V] Vi max [V] Vo nom [V] Io nom [A] Po nom [W] η min η typ [%] 43.2 50.4 (72) 90 110 24 21 500 96 72RCM500-24 D, M, Q, F, K 24 41 1000 96 72RCM1000-24 66 77 (72) 137.5 154 24 21 500 96 96.4 110RCM500-24 24 41 1000 96 96.4 110RCM1000-24 1 Short time; see table 2 for details. 2 Efficiency at TA = 25 °C, Vi nom, Io nom, Vo nom, only option D fitted. Part Number Description Operating input voltage Vi cont (continuously): Output power: Nominal output voltage: Auxiliary functions and options: 1 Opt. D requires the auxiliary connector. Note: The sequence of options must follow the order above. Note: All models are RoHS-compliant for all six substances.

110 RCM 500 -24 D M Q F K

Available combinations of options: 72/110RCMxxx-24 (K) 72/110RCMxxx-24D (K) 72/110RCMxxx-24DF (K) 72/110RCMxxx-24DMQ (K) 72/110RCMxxx-24DMQF (K) Example: 110RCM500-24DMQ: DC-DC converter, input voltage range 77 to 137.5 V continuously, output providing 24 V /21 A, monitoring relay, output vol tage adjust, shutdown input, active current sharing, interruption time 10 ms, integrated ORing FET, RoHS-compliant for all six sub stances. 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.00803 Rev AC, 10-May-2018 Page 3 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Functional Description The input voltage is fed via an efficient input filter and a step-up converter (switching with 2 × 110 kHz) to the high-efficient DC-DC converter operating at a switching frequency of ap prox i mately 90 kHz. The built-in over voltage limiter protects against input voltage surges. The inrush current is limited by an electronic circuitry. A VDR resistor protects against external surges. If there is no external circuit breaker, the converter can be ordered with built-in fuse (opt. F). This fuse is not accessible. The circuitry to provide the interruption time (opt. M) is located after the input filter together with the reverse polarity protection formed by a FET. The rectification on the secondary side is provided by syn chronous rectifiers, in order to keep the losses as low as possible. The output voltage control logic is located on the secondary side and controls the FETs of the DC-DC converter via insulated drivers. An auxiliary converter supplies all circuits with a stable bias voltage. An output ORing FET is available (opt. Q) and allows for a redundant power supply system. Opt. D encompasses an additional signal connector to allow for output voltage adjustment, active current sharing, primary shutdown, and an output voltage monitor activating a relay with change-over contact. The converter is mounted onto a base plate which acts as cooling plate. An additional heatsink for natural convection cooling is available as accessory. A thermal protection on the input and output side prevents from overheating. Vi– Vi+ Isolation Vo– Auxiliary connector (only with option D) Vo+ Auxiliary converterCy PE Opt. Q Fuse (option F) Opt. M Input filter 1 Reverse polarity protection (FET) , only fitted with opt. F or M 2 Bipolar suppressor diode with opt. F or M Output filter VDR JM201e Secondary control logic T T R– R R R+ NTC Chu Primary control logicSD0 SD Input filter Cy OK0 OK2 OK1 Insulated driver Ci Insulated driver Fig. 1 Block diagram

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 4 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Electrical Input Data General conditions: - TA = 25 °C, unless specified. Table 2a: Input data of RCM500 models Input 72RCM500-24 110RCM500-24 Unit Characteristics Conditions min typ max min typ max Vi Operating input voltage Io = 0 – Io max TA min – TA max 50.4 (72) 90 77 (110) 137.5 VVi 2s for ≤ 2 s without shutdown 43.2 100.8 66 154 Vi nom Nominal input voltage 72 110 Vi abs Input voltage limits 3 s without damage 0 108 0 165 Ii Typical input current Vi nom, Io nom 7.3 4.8 A Pi 0 No-load input power Vi min – Vi max, Io = 0 2.5 4 2.5 4 W Pi SD Idle input power Vi min – Vi max, VSD = 0 V 2 3 2 3 Ci Input capacitance 1 7 7 µF Ri Input resistance 14 14 mΩ Iinr p Peak inrush current Vi = Vi max, Po nom 20 20 A tinr d Duration of inrush current 0.5 0.5 ms ton Duration of inrush current 0 → Vi min, Po nom 300 500 300 500 Start-up time after removal of shutdown Vi min, Po nom VSD = 0 → 5 V 300 500 300 500 Table 2b: Input data of RCM1000 models Input 72RCM1000-24 110RCM1000-24 Unit Characteristics Conditions min typ max min typ max Vi Operating input voltage Io = 0 – Io max TA min – TA max 50.4 (72) 90 77 (110) 137.5 VVi 2s for ≤ 2 s without shutdown 43.2 100.8 66 154 Vi nom Nominal input voltage 72 110 Vi abs Input voltage limits 3 s without damage 0 108 0 165 Ii Typical input current Vi nom, Io nom 15 9.5 A Pi 0 No-load input power Vi min – Vi max, Io = 0 3 4 3 4 W Pi SD Idle input power Vi min – Vi max, VSD = 0 V 2.5 3 2.5 3 Ci Input capacitance 1 7 7 µF Ri Input resistance 14 14 mΩ Iinr p Peak inrush current Vi = Vi max, Po nom 40 40 A tinr d Duration of inrush current 0.5 0.5 ms ton Duration of inrush current 0 → Vi min, Po nom 300 500 300 500 Start-up time after removal of shutdown Vi min, Po nom VSD = 0 → 5 V 300 500 300 500

1 Not smoothed by the inrush current limiter at start-up (for inrush current calculation)

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 5 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Input Transient and Reverse Polarity Protection A VDR resistor and a symmetrical input filter form an effective protection against input transients, which typically occur in many installations, but especially in battery-driven mobile applications. If the input voltage has the wrong polarity, the incorporated reverse diode will cause the external input circuit breaker or fuse to trip. With option M or F (incorporated fuse), an active reverse-polarity protection circuit prevents from any damage. Input Under-/Overvoltage Lockout If the input voltage is out of range, an internally generated signal dis ables the converter to avoid any damage. Efficiency See fig. 2. 0.4 0.8 Po / Po nom0 JM216 100 η [%] 0.60.2 110RCM500-24DMQ Vi = 137 V Vi = 77 V 0.4 0.8 P o / Po nom0 JM215 100 η [%] 0.60.2 110RCM1000-24DMQ Vi = 110 V Vi = 137 V Vi = 77 V Fig. 2a Efficiency versus Vi and Po (110RCM500-24DMQ) Fig. 2b Efficiency versus Vi and Po (110RCM1000-24DMQ)

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 6 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Electrical Output Data General conditions: - TA = 25 °C, unless TC is specified - R input not connected Table 3: Output data Output 72/110RCM500-24 72/110RCM1000-24 Unit Characteristics Conditions min typ max min typ max V Vow Worst case output voltage Vi min – Vi max TC min – TC max, 0 - Io nom 23.28 24.72 23.28 24.72 Vo droop Output voltage droop - 10 - 5 mV/A Vo L Overvoltage shutdown 6 28 28 V Vo P Overvoltage protection 2 28.5 30 31.5 28.5 30 31.5 Io nom Nominal output current TC min – TC max 21 42 A Io L Output current limit 23 45 vo Output noise 3 Switching frequency Vi nom, Io nom BW = 20 MHz 240 240 mVppTotal incl. spikes 480 480 vod Dynamic load regulation Voltage deviation 5 Vi nom , 0.1 ↔ 0.9 Io nom 1000 1000 t d 4 Recovery time 5 5 ms α vo Temperature coefficient of vo (NTC) 0 - Io nom, TC min – TC max - 0.02 0 - 0.02 0 %/K 1 If the output voltage is increased above Vo nom through R-input control, the output power should be reduced accordingly, so that Po max and TC max are not exceeded. 2 Breakdown voltage of the incorporated suppressor diode at 1 mA . Exceeding this value might damage the suppressor diode.

3 Measured according to IEC/EN 61204 with a probe described in annex A

4 Recovery time until Vo returns to ±1% of Vo; see fig. 3. 5 No overshoot at switch on. 6 Output overvoltage shutdown by an electronic circuitry, with automatic recovery. Output Voltage Regulation Vod Vod td td Vo ±1% Vo ±1% t t ≥ 10 µs ≥ 10 µs Vo 0.5 Io/Io nom 05102c Fig. 3 Typical dynamic load regulation of output voltage

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 7 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Output Current Limitation The output is continuously protected against open-circuit (no load) and short-circuit by an electronic current limitation with rectan- gular characteristic; see fig. 4. Vo Vo nom 0.98 0.5 0 0.5 1.0 IoL Io Io nom JM097 Fig. 4 Rectangular current limitation Series, Parallel Connection, Redundancy The outputs of several RCM Series converters may be con nected in series. Note: If the sum of the output voltages is greater than 60 V, it cannot be considered being SELV (Safety Extra Low Voltage) according to the safety standards. but the voltage may exceed the SELV level. The outputs RCM Series converters may be con nected in parallel. In order to ensures proper current sharing, the load lines should have equal length and section. The output voltage exhibits a slight droop characteristic, which facilitates current sharing. In addition, the output voltage tends to be lowered with increasing temperature. Converters with option D exhibit an additional pin T to provide active current sharing by simply interconnecting all T- pins. For redundant systems, we recommend option Q, which exhibits ORing diodes built by FETs, in order to keep the losses to a minimum. Figure 5 shows a system with 3 parallel-connected converters forming a redundant system. The output voltage is increased by the resistor Rext2 (as an example). The OK signals, connected in series, allow for monitoring all 3 converters. Vo– Vo+ T Vi– Vi+ SD0 OK1 OK2 OK0 110RCM1000-24DQ SD R Load Vo– Vo+ T Vi– Vi+ SD0 OK1 OK2 JM237 OK0 110RCM1000-24DQ SD R Vo– Vo+ T Vi– Vi+ SD0 OK1 OK2 Rext2 OK0 110RCM1000-24DQ SD R –Input OKSD Rext2 Rext2 Fig. 5 Parallel connection of 3 converters

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 8 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Thermal Considerations and Protection A temperature protection is incorporated in the primary and secondary control logic each. It generates an internal inhibit signal, which disables the converter in case of over tem per a ture. The converter automatically recovers, when the temper a ture drops below the limit; see fig. 6. The relationship be tween TA and TC depends heavily upon the conditions of operation and the integration into a system. Caution: The installer must ensure that under all operating con ditions TC remains within the limits stated in table 7. 200 400 600 800 50 60 70 80 90 100 Po [W] TA [°C]

1000 RCM1000

(dotted lines) Fig. 6 Typical output power derating versus temperature; vertical mounting position, free convection cooling. LED Indicator Each converter exhibits a green LED “Out OK”, signaling that the output voltage is inside the specified range.

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 9 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Description of Options Option D: Output Monitor, Output Adjust, Shutdown Option D consists of several auxiliary functions (R, OK, SD, T) and en compasses an additional auxiliary connector. Output Voltage Adjust (R) Note: With open R-input, Vo = Vo nom. The converter allows for adjusting the output voltage in the range of 80 to 105% of Vo nom. The adjust is accomplished by an external resistor Rext1 or Rext2, connected to input R; see fig. 7. Depending on the value of the required output voltage, the resistor shall be connected: either: Between the pins R and R– to adjust the output voltage to a value below Vo nom : Vo Note: Rext1 = 0 Ω reduces Vo to 80%. or: Between the pins R and R+ to adjust the output voltage to a value greater than Vo nom :

2.5 V • (Vo/Vo nom – 1)

Note: Rext2 = 0 Ω increases Vo to 105%. Vo– 4 kΩVref = 2.5 V Rext1 Rext2 JM191 Vi– Vi+ Control logic Bias 628 kΩ 15.8 kΩ R Fig. 7 Output voltage control via R-input Output Voltage Monitor (OK) The output voltage Vo is monitored. When Vo is in range, a relay with a changeover contact connected to the auxiliary connector is activated, and OK0 is connected with OK1. Note: The trigger levels are typ. ±5 % of Vonom (with open R-input). Data of relay contacts: 0.4 A /150 VDC. Primary Shutdown (SD) The output of the converter may be enabled or disabled by a logic signal (e.g. CMOS) applied between the shutdown pin SD and SD0 (= Vi–). If the shutdown function is not re quired, pin SD can be left open-circuit. Voltage on pin SD: Converter operating: 12 V to Vi max or open-circuit Converter disabled: –2 to +2 V The output response is shown in fig.8 Note: In systems consisting of several converters, this feature may be used to control the activation sequence by logic signals or to enable the power source to start up, before full load is applied.

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 10 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Current Share Function in Parallel Operation (T) Just interconnect the T-pins of all converters to balance their output currents. Only a single-wire connection is needed. SD 0.1 Vo/Vo nom ton tf JM193a t off tr thu td on Fig. 8 Typical output response to the SD-signal. If option M is not fitted, thu = 0 ms. Option Q: ORing FET for Redundant Systems Two parallel connected converters are separated with ORing diodes (built by FETs). If one converter fails, the remaining one still delivers the full power to the loads. If more power is needed, the system may be extended to more parallel converters (n+1 re- dundancy). Current sharing must be ensured by load lines of equal section and length. In addition, a slight droop characteristic of the outputs and a negative temperature coefficient are helpful as well. To keep the losses as small as possible, the ORing diode is replaced by a FET. Note: In the case of a failing converter, the output voltage is maintained by the redundant converters. However, the failing item should be identified and replaced. We recommend the Out OK function (option D). Option M: Interruption Time The interruption time thu is specified in the railway standard EN 50155:2017 clause 5.1.1.4: Class S2 is 10 ms. It is measured at VB nom (nominal battery voltage) for interruption and short-circuit of the input. After such an event, the system is ready for the next event after 10 s. Fig. 6 shows the output voltage Vo, if option M is fitted. Option M encompasses a backrush pro tection formed by a FET device. For less critical applications, option M is not required (class S1). Such units have a slightly better efficiency. Option F: Incorporated Fuse The railway standard EN 50155 does not recommend fuses in converters. Consequently, the installer should preview an external fuse or circuit breaker. However, when this is not possible, we offer an in corporated fuse (option F) with active reverse polarity protection formed by a FET device. The fuse is not accessible and will not trip, unless the converter is really defect. The type of the incorporated fuses is specified in table 4. Such fuses are also recommended for external fuses. Table 4: Recommended external fuses (same as with option F) Converter Specification Ordering number 72RCM500-24 15 A fast acting Littlefuse 0505015.MX52 LEP 110RCM500-24 15 A fast acting Littlefuse 0505015.MX52 LEP 72RCM1000-24 110RCM1000-24 25 A fast acting Littlefuse 0505025.MX52 LEP Option K: Pluggable Connectors This option allows the use of preassembled pluggabale con nectors; for details see Accessories. Note: Female connectors must be ordered separately.

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 11 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Electromagnetic Compatibility (EMC) Electromagnetic Immunity Table 5: Electromagnetic immunity (type tests) Phenomenon Standard Level Coupling mode 1 Value applied Waveform Source imped. Test procedure In oper. Perf. crit.2 Electrostatic discharge (to case) IEC/EN 61000-4-2 4 3 contact discharge 6000 Vp 1/50 ns 330 Ω 150 pF 10 pos. & 10 neg. discharges yes A air discharge 8000 Vp Electromagnetic field IEC/EN 61000-4-3 x 4 antenna 20 V/m AM 80% / 1 kHz N/A 80 – 800 MHz yes A 5 antenna

20 V/m

AM 80% / 1 kHz N/A 800 – 1000 MHz yes A

10 V/m 1400 – 2000 MHz

5 V/m 2000 – 2700 MHz

3 V/m 5100 – 6000 MHz

61000-4-4 3 6 capacitive, o/c ±2000 Vp bursts of 5/50 ns; 2.5/5 kHz over 15 ms; burst period: 300 ms 50 Ω 60 s positive 60 s negative transients per coupling mode yes A 3 i/c, +i/–i direct Surges IEC/EN 61000-4-5 3 7 i/c ±2000 Vp 1.2 / 50 µs 42 Ω 5 pos. & 5 neg. surges per coupling mode yes A +i/–i ±1000 Vp 0.5 μF Conducted disturbances IEC/EN 61000-4-6 3 8 i, o, signal wires 10 VAC (140 dBµV) AM 80% / 1 kHz 150 Ω 0.15 – 80 MHz yes A Power frequency magnetic field IEC/EN 61000-4-8 3 9 300 A/m 60 s in all 3 axis yes A 1 i = input, o = output, c = case 2 A = normal operation, no deviation from specs.; B = normal operation, temporary loss of function or deviation from specs possible 3 Exceeds EN 50121-3-2:2016 table 5.3. 4 Corresponds to EN 50121-3-2:2016 table 5.1. 5 Corresponds to EN 50121-3-2:2016 table 5.2. 6 Corresponds to EN 50121-3-2:2016 table 3.2. 7 Covers or exceeds EN 50121-3-2:2016 table 3.3. 8 Corresponds to EN 50121-3-2:2016 table 3.1 (radio frequency common mode). 9 Corresponds to EN 50121-4:2016 table 2.3.

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 12 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Electromagnetic Emissions The conducted emissions (fig. 9) have been tested accord ing to EN 55011, group 1, class A (similar to EN 55032), much better values than requested by EN 50121-3-2:2016, table 2.1. The limits in fig. 9 apply to quasipeak values, which are always lower then peak values. Radiated emissions have been tested as per EN 55011, group 1, class A, similar to EN 61000-6-4+A1:2011, table 1. The test was executed with horizon tal and vertical polarization; the worse result is shown in fig. 10. dBµV 110RCM500-24DMQF; Vi = 110 V, Vo = 24 V; Io = 21 A Class A, 25-May-2017 JM225 EN 55011 A av EN 55011 A qp 0.2 0.5 1 2 5 10 20 MHz dBµV 110RCM500-24DMQF; Vi = 110 V, Vo = 24 V; Io = 21 A Class A, 25-May-2017 JM225 EN 55011 A av EN 55011 A qp 0.2 0.5 1 2 5 10 20 MHz dBµV 110RCM1000-24DMQF; Vi = 110 V, Vo = 24 V; Io = 42 A Class A, 25-May-2017 JM227 EN 55011 A av EN 55011 A qp 0.2 0.5 1 2 5 10 20 MHz Fig. 9a 110RCM500-24: Typ. conducted disturbances at the input (Vi =110 V, Ii nom, resistive load, quasi peak and average). Fig. 9b 110RCM1000-24: Typ. conducted disturbances at the input (Vi =110 V, Ii nom, resistive load, quasi peak and average). 30 50 100 200 500 1000 MHz dBµV/m EMC Labatory, 110RCM500-24DMQF; Vi = 110 VDC, Vo = 24 V / 21 A ETS-3143B Testdistance 3 m, Class A, 25-May-2017 JM226 QP Limit EN 55011, Group 1, Class A, 3 m 30 50 100 200 500 1000 MHz dBµV/m EMC Labatory, 110RCM500-24DMQF; Vi = 110 VDC, Vo = 24 V / 42 A ETS-3143B Testdistance 3 m, Class A, 25-May-2017 JM228 QP Limit EN 55011, Group 1, Class A, 3 m Fig. 10a 110RCM500-24: Typ. radiated disturbances in 3 m distance (Vi = 110 V, Ii nom, resistive load, quasi peak). Fig. 10b 110RCM1000-24: Typ. radiated disturbances in 3 m distance (Vi = 110 V, Ii nom, resistive load, quasi peak).

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 13 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Immunity to Environmental Conditions Table 6: Mechanical and climatic stress. Air pressure 800 – 1200 hPa Test method Standard Test Conditions Status Ad Low temperature start-up test EN 50155:2017, clause 13.4.4 IEC/EN 60068-2-1 Temperature, duration: - 40 °C, 2 h Not operating Performance test: +25 °C Be Dry heat test, cycle A EN 50155:2017, clause 13.4.5 IEC/EN 60068-2-2 Temperature: 70 °C Operating perf. crit. ADuration: 6 h Db 2 Cyclic damp heat test EN 50155:2017, clause 13.4.7 IEC/EN 60068-2-30 Temperature: 55 °C and 25 °C Not operating Cycles (respiration effect): 2 Duration: 2x 24 h Ka Salt mist test sodium chloride (NaCl) solution EN 50155:2017, clause 12.2.10 IEC/EN 60068-2-11 class ST3 Temperature: 35 ±2 °C Converter not operatingDuration: 28 h Functional random vibration test EN 50155:2017 clause 13.4.11.4 EN 61373:2010 clause 8, class B, body mounted 1 Acceleration amplitude: 0.1 gn = 1.01 m/s2 Operating perf. crit. A Frequency band: 5 – 150 Hz Test duration: 30 min (10 min in each axis) Simulated long life testing EN 50155:2017 clause 13.4.11.2 EN 61373:2010 clause 9, class B, body mounted 1 Acceleration amplitude: 0.58 gn = 5.72 m/s2 Not operating Frequency band: 5 – 150 Hz Test duration: 15 h (5 h in each axis) Shock test EN 50155:2017 clause 13.4.11.3 EN 61373:2010 clause 10, class B, body mounted 1 Acceleration amplitude: 5.1 gn Operating perf. crit. A Bump duration: 30 ms Number of bumps: 18 (3 in each direction) Vibration sinusoidal AREMA Part. 11.5.1 class C, D, E, I, J Acceleration amplitude: 0.3” (5 – 20 Hz) 1.5 gn = 14.7 m/s2 Operating perf. crit. A Frequency: 10 – 200 Hz Test duration: 12 h (4 h in each axis) Mechanical shock AREMA Part. 11.5.1 class C, D, E, I, J Acceleration amplitude: 10 gn = 98 m/s2 Operating perf. crit. A Bump duration: 11 ms Number of bumps: 18 (3 in each direction)

1 Body mounted = chassis of a railway coach

Table 7: Temperature specifications, valid for an air pressure of 800 – 1200 hPa (800 – 1200 mbar) Model RCM500 RCM1000 Unit EN 50155:2017 Class OT4 EN 50155:2017 Class OT2 Characteristics Conditions min max 10 min min max 10 min TA Ambient temperature Converter operating - 40 70 85 - 40 55 2 70 °CTC Case temperature 1 - 40 90 90 TS Storage temperature Not operational - 55 85 - 55 85 1 Measured at the measurement point TC ; see Mechanical Data. 2 RCM1000 can be operated at higher temperature with reduced output power. Reliability Table 8: MTBF and device hours Ratings at specified case temperature between failures Model MTBF Demonstrated hours 1 Accord. to IEC 62380 110RCM500-24DMQF 1 120 000 h 110RCM1000-24DMQF 1 110 000 h 1 Statistical values, based upon an average of 4300 working hours per year and in general field use over 5 years; upgrades and customer-induced errors are excluded.

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 14 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Mechanical Data Dimensions in mm. □ 4 .5 (4x) Vo+ Vo– Vi– Vi+ PE Measuring point of case temperatureTC JM206d 10.95 53.65 99.65 92.75 70.5 209 197 147.05 123 141 9.0 40 71.566 Heatsink fixation 2x M3 13.9 53.7 99.4 Vo+ Vo– Vi– Vi+ PE JM204e Measuring point of case temperatureTC 92.75 147.05 197 209 123 9.0 Heatsink fixation 2x M3 70.5 71.566 Vo+ Vo– Vi– Vi+ PE 10.95 53.65 99.65 141 13.9 53.7 99.4 Vo+ Vo– Vi– Vi+ PE RCM500/1000 standard RCM500/1000 with option K Fig. 12 Case for RCM500 (RCM03), Aluminum, EP powder-coated; 1160 g. Fig. 13 Case for RCM1000 (RCM04), Aluminum, EP powder-coated; 1250 g. 17.7 pluggable connector JM246 European Projection Fig. 14 Case detail for RCM500/1000 with option K

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 15 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Safety and Installation Instruction Connectors and Pin Allocation - Input connector, 3 pins: Wago 745-353: Vi+, Vi–, PE; wire sections: RCM500/1000: 0.2 – 6 mm 2, 24 – 10 AWG; with option K: Weidmüller 1048500000 - Output connector, 2 pins: Wago 745-652/006-000: Vo+, Vo; wire sections: RCM500/1000: 0.2 – 16 mm2, 24 – 06 AWG with option K: Weidmüller 1048390000 - Auxiliary connector: Phoenix Contact 1874043, pin allocation see fig. 15. R R+ R R– T T n.c. n.c. OK0 OK1 OK0 OK2 n.c. n.c. SD0 SD Fig. 15 Auxiliary connector pin allocation Installation Instruction These converters are components, intended exclusively for inclusion by an industrial assembly process or by a pro fessionally competent person. Installation must strictly follow the national safety regulations in respect of the enclosure, mounting, creepage distances, clearances, markings and segregation requirements of the end-use application. Connection to the system shall only be effected with cables with suitable section (primary and secondary connector in cage clamp technique). The auxiliary connector shall be connected via the suitable female connector; see Accessories. Other installation methods may not meet the safety requirements. Check that PE is safely connected to protective earth. No fuse is incorporated in the converter (except for option F). An external circuit breaker or a fuse in the wiring to one or both input pins. Do not open the converters, or the warranty will be invalidated. Make sure that there is sufficient airflow available for convection cooling and that the temperature of the bottom plate is within the specified range. This should be verified by measuring the case temperature at the specified measuring point, when the converter is operated in the end-use application. TC max should not be exceeded. Ensure that a failure of the converter does not result in a hazardous condition. Standards and Approvals The RCM Series converters are approved according to the last edition of IEC/EN 60950-1 and UL/CSA 60950-1. They have been evaluated for:

• Class I equipment
• Building in
• Double or reinforced insulation based on 250 VAC or 240 VDC between input and output, and between input and OK signals (relay contacts)
• Pollution degree 2 environment The converters are subject to manufacturing surveillance in accordance with the above mentioned UL standards and with ISO 9001:2008. Cleaning Liquids and Protection Degree The converters are not hermetically sealed. In order to avoid possible damage, any penetration of liquids shall be avoided. The converters correspond to protection degree IP 30.

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 16 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Railway Applications The RCM Series converters have been designed observing the railway standards EN 50155:2017, EN 50121-3-2:2016, and AREMA. All boards are coated with a protective lacquer. The converters comply with the fire & smoke standard EN 45545-2, HL1 to HL3. Insulation Test The electric strength test is performed in the factory as routine test in accordance with EN 50514 and IEC/EN 60950 and AREMA. It should not be repeated in the field. The Company will not honor warranty claims resulting from incorrectly executed electric strength tests. Table 9: Isolation Characteristics Input to Output to Case OK contacts to Unit Output 1 Case + Output Input Case Outputs AC test voltage equivalent Insulation resistance >300 3 >300 3 >300 >300 >300 >300 MΩ

1 Pretest of subassemblies in accordance with IEC/EN 60950

2 Additional test with 1500 VDC during 10 s as per EN 50155:2017.

3 Tested at 500 VDC

tech.support@psbel.com belfuse.com/power-solutions BCD.00803 Rev AC, 10-May-2018 Page 17 of 17 RCM Series 500 / 1000 W DC-DC Converters © 2018 Bel Power Solutions & Protection Accessories Female Connector A suitable 16 pin female connector is available; see fig. 16. For converters RCM500/1000 with option K, use (see fig. 17):

• HZZ00303-G (3 poles, Weidmüller 1060580000)
• HZZ00302-G (2 poles, Weidmüller 1060550000). Wire section: 0.5 – 10 mm2, 24 – 8 AWG Fig. 16 Female connector 16 pins, HZZ00146-G (Phoenix Contact 1790357) Fig. 17 Female connectors for RCM500/1000 with option K Additional Heatsink A suitable heat sink (HZZ00149-G) for free air cooling is available, if cooling by wall or a chassis mounting is not possible; see fig. 18. Visible surface A A A-A B 67.5±0.2 71.5±0.2 66±0.1 C 135 (209) 6 6 D C (2x) 0.2 90° Ø 3.4 D (2x) 8 ±1 B (4x) R 6 Ø 4.5 JM224a Ø 6 Fig. 18 Additional heatsink for RCM500 and RCM1000 (HZZ00149-G) Weight 530 g Content: Heatsink + 6 screws (M3 x 6 mm) NUCLEAR AND MEDICAL APPLICATIONS - These 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.