RMD300-UW
8Pages

• Fully railway approved for EN50155 (S2) applications • EN50121-3-2, EN50124-1, EN62368-1, EN61373, EN45545-2 • Plug&Play unit for natural convection cooling • Ultra wide range input for nominal 24V and 110V • Excellent efficiency and functionality • Parallel and redundant operation • Extremely reliable and robust Features Regulated Converter Description The chassis mountable RMD300 series DC/DC converter is designed for railway rolling stock and transportation applications. The unit is designed with 12:1 input voltage range to cover the input voltages from 14,4VDC up to 170VDC for nominal 24, 36, 48, 72 and 110V in one range with isolated and regulated 24V output and reinforced isolation system. The base plate mounting permits a wide operating temperature for OT4+ST1&ST2 class from -40°C to +85°C without derating. Input reverse polarity protection, inrush current limitation, 10ms hold-up time, remote control, and output OR-ing diode and efficiency of up to 95,5% round up the functionality of this fully railway compliant Plug&Play unit. DC/DC Converter REACH compliant IEC/EN62368-1 pending EN50124-1 pending EN45545-2 pending EN50155 pending EN50121-3-2 compliant EN55011 compliant IEC/EN61000-4-2,3,4,5 compliant Model Numbering Input Voltage Range [VDC] Part Number Selection Guide Output Voltage Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated) BASIC CHARACTERISTICS Parameter Input Voltage Range Input Surge Voltage Input Capacitance rising edge falling edge Under Voltage Lockout Input Current Range Inrush Current active inrush current limitation No Load Power Consumption continued on next page www.recom-power.com

Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated) BASIC CHARACTERISTICS (continuous) Parameter Standby Current (shutdown by remote) Output Current Range parallel operation refer to “PARALLEL OPERATION” Output Voltage Trimming Minimum Load Output Voltage Rise Time by using CTRL ON/OFF function Start-up Time ON/OFF CTRL Hold-up Time Input Current of CTRL pin Internal Operating Frequency Output Ripple and Noise over full input and load range, 20MHz BW Maximum Capacitive Load Input Voltage Range Output Power [%] Constant Current / Constant...

Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated) REGULATIONS Parameter Output Accuracy Line Regulation low line to high line, full load Load Regulation 10-100% load 10-90% load, VIN= 16.8-137VDC Transient Response Input Fuse recovery time Short Circuit Protection (SCP) T25A, slow blow type constant current mode, auto recovery Input Reverse Polarity Protection Short Circuit Input Current active protected Over Voltage Protection (OVP) Over Voltage Category (OVC) Over Current Protection (OCP) auto recovery shut down, auto recovery Over...

Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated) ENVIRONMENTAL Parameter Value with derating Operating Temperature Range without derating according to EN50155 operating temperature class OT4 and extended operating temperature class ST1 & ST2 without derating for 15 minutes refer to “tc point” Maximum Baseplate Temperature Operating Humidity Conformal Coating Temperature Coefficient Operating Altitude Pollution Degree IP Rating Design Lifetime MTBF Useful Life Class Notes: Note2: board is protected on both sides with a protective /...

Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated) ENVIRONMENTAL (RAILWAY STANDARDS) Parameter Shock testing Random Vibration, unit not powered during test Frequency range 5-150Hz with -6db/oct from 20 to 150Hz Vertical axis 5.72m/s² for 5h [ASD 0.964(m/s²)²/Hz] Transverse axis 2.55m/s² for 5h [ASD 0.192(m/s²)²/Hz] Longitudinal axis 3.96m/s² for 5h [ASD 0.461(m/s²)²/Hz] EN 61373 clause 9, class B Body mounted Half-sine shock, unit powered during test Vertical axis 30m/s² for 30ms Transverse axis 30m/s² for 30ms Longitudinal axis 50m/s² for...

Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated) DIMENSION AND PHYSICAL CHARACTERISTICS Parameter Dimension (LxWxH) Input Connector CAGE CLAMP® CON1 (WAGO 745-353) # Function AWG Wire diameter -Vin 24-10 0.25-4mm² 1 +Vin 24-10 0.25-4mm² 2 PE 24-10 0.25-4mm² 3 wire stripping length: 11-12mm Conductor connection direction to PCB 45° ViVo+ VoOutput Connector CAGE CLAMP® CON2 (WAGO 745-602/006-000) # Function AWG Wire diameter +Vout 24-6 0.25-10mm² 4 -Vout 24-6 0.25-10mm² 5 Side View Bottom View 2X M3 optional heatsink fixation. Max 3.0mm, max...

DC/DC Converter Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated) Dimension Drawing (mm) MOUNTING INSTRUCTION 2X M3 optional heatsink fixation. Max 3.0mm, max tightening torque:1.3Nm 2X M3 optional heatsink fixation. Max 3.0mm, max tightening torque:1.3Nm Mounting Dimensions For operation of the DC/DC converter the PE connection at the intended connection point as part of the overall EMC concept is mandatory. Natural air convection around the unit must be possible at any time and the temperature at the indicated reference point shall not be...

Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated) PARALLEL OPERATION -VIN Here the example of three parallel connected units. CS1/CS2 is a double connection of the same pin to be able to connect more than two units. BLOCK DIAGRAM Input Filter FORWARD CONV. with ACTIVE CLAMP ORING Mosfet Synchronous Rectifier HOLD UP TIME MODULE AUXILIARY Converter PRIMARY Control SECONDARY Control PACKAGING INFORMATION Parameter Packaging Dimension (LxWxH) Packaging Quantity Storage Temperature Range The product information and specifications may be subject...