Technical Parameters Basic Information Brand: Alstom Converteam Part No.: MAVS01D1AB125D1 Form Factor: Standard 3U slide-in rack pluggable module Matching control system: EP3-E-4-EN, EPIC-III traction master controller, KCEG series gate drive boards, RIOM T35 I/O modules Application: Urban metro, light rail vehicle traction converter internal isolated auxiliary power source High Voltage Input Spec Input source: Vehicle main traction DC link Input voltage range: 400 VDC ~ 900 VDC wide fluctuation range Maximum rated input power: 350 W Input protection: Overvoltage, undervoltage, reverse polarity, HV surge suppression, built-in input overcurrent fuse Galvanically Isolated Multi Output Channels DC24V / 6A: For RIOM I/O modules, control relays, signal sensors ±15V / 3A: For analog sampling circuits, temperature & current sensors ±5V / 4A: For DSP master CPU, logic and communication circuits Dual isolated ±18V: Dedicated power supply for IGBT gate drive monitoring boards All outputs complete galvanic isolation from high-voltage DC-link primary side Independent per-channel protection: Short-circuit hardware lockout, overcurrent, overtemperature auto shutdown and self-recovery Mechanical Specifications Overall dimension: H130 mm × W98 mm × D220 mm PCB protection: Full acrylic conformal coating, anti-moisture, anti-corrosion, anti-dust, anti-mold Front panel LED indicators: HV Input Normal, 24V Aux Output, Gate Drive Power Fault, Overheat Alarm Fastening: Anti-looseness lock buckle, stable contact under long-term vehicle running vibration Railway Environmental & Compliance Standards Operating ambient temperature: -25 ℃ ~ +70 ℃ Storage & transport temperature: -40 ℃ ~ +85 ℃ Relative humidity: 5% ~ 95% non-condensing Vibration test standard: IEC 61373 railway rolling stock Shock resistance: 12g half-sine wave impact test EMC standard: EN 50121-3-2 railway vehicle electromagnetic compatibility Fire safety grade: EN 45545-2 HL2 low smoke, low toxicity flame retardant