Aluminum Case for Railway and Transit Equipment Transport: EN 61373 Vibration, EN 45545 Fire Safety, and Rolling Stock Component Protection Engineering

The railway and transit industry demands transport packaging that addresses a uniquely challenging combination of vibration profiles, electromagnetic interference, fire safety requirements, and environmental extremes. Railway equipment — traction inverters (SiC/GaN, 1.5-3 MW), traction motors (200-600 kW), auxiliary converters, battery chargers, train control systems (ETCS/ERTMS), signaling equipment, passenger information systems, and trackside electronics — must survive transport conditions that simulate and exceed the operational vibration environment defined by EN 61373 (railway applications – rolling stock equipment – shock and vibration tests). The vibration profiles for rolling stock are among the most severe in industrial transport: longitudinal 5g, transverse 3g, and vertical 4g (Category 1, loco/rolling stock body-mounted), with shock pulses of 30g. A single traction inverter (SiC-based, $50,000-$150,000, 80-200 kg) or an ETCS onboard unit ([$20,000-$50,000]) demands case engineering that addresses vibration isolation, EMI from 25kV AC overhead lines, fire safety per EN 45545-2, and thermal management from -40 to +70 degrees Celsius. This comprehensive engineering guide examines the railway transport environment, rolling stock component transport, trackside electronics protection, train control and communication systems, railway-specific case design, battery and energy storage transport, cable and harness management, industry standards, and OEM/ODM solutions for the railway and transit industry.

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Railway Transport Environment

The railway transport environment combines sustained random vibration, mechanical shock, electromagnetic interference, and thermal extremes that require specialized case engineering:

EN 61373 Vibration Categories

Category	Mounting Location	Longitudinal (X)	Transverse (Y)	Vertical (Z)	Shock (g, 30ms)	Test Duration
1 (A/B/C)	Locomotive / rolling stock body	5g (50 m/s2)	3g (30 m/s2)	4g (40 m/s2)	30g	5h per axis (functional); 15h per axis (extended)
2 (A/B)	Bogies (suspended)	7g (70 m/s2)	5g (50 m/s2)	7g (70 m/s2)	30g	5h per axis
3 (A/B)	Axles (unsprung)	20g (200 m/s2)	15g (150 m/s2)	20g (200 m/s2)	50g	5h per axis

Case design implication: For equipment mounted on the locomotive or rolling stock body (Category 1), the transport case must limit transmitted vibration to levels that do not cause mechanical damage during transport. The case foam (50mm Ethafoam 220, 60-70% crush ratio) and vibration isolation mounts (2-5 Hz elastomeric isolators, 4-point) reduce transmitted vibration by 20-30 dB above the isolator resonant frequency. For equipment mounted on bogies (Category 2) or axles (Category 3), the operational vibration is so severe that the transport case must provide even higher isolation (additional 10-15 dB), achieved through multi-layer foam (25mm Ethafoam 220 + 25mm Ethafoam 600) and wire-rope isolators (4-point, 1-3 Hz natural frequency).

Electromagnetic Interference in Railway

EMI Source	Frequency	Field Strength	Standard	Case Shielding
25kV AC overhead (50/60 Hz)	50/60 Hz fundamental + harmonics to 5kHz	300 V/m electric field at trackside	EN 50121-3-2	Aluminum body provides limited shielding at 50 Hz (reflection only, no absorption); conductive gasket for seams
Traction inverter PWM switching	0.5-10 kHz fundamental + harmonics to 10MHz	10-50 V/m near cable	EN 50121-3-2	Aluminum body 60-80 dB shielding at switching frequencies; honeycomb vents if required
GSM-R / LTE-R radio	900 MHz / 2.6 GHz	10-20 V/m near antenna	EN 50121-3-2	Aluminum 60-80 dB at 900 MHz; conductive gasket at seams
Third rail / DC traction (750V DC)	DC + ripple to 1 kHz	Magnetic field 10-100 A/m near conductor	EN 50121-3-2	Aluminum provides limited magnetic shielding; high-permeability material (steel) needed for magnetic field

EMI shielding design: The aluminum case body (6061-T6, 2.0mm) provides 60-80 dB plane-wave shielding from 30 MHz to 6 GHz through reflection loss. The lid-to-body seam uses a conductive gasket (nickel-graphite elastomer, 60-100 dB from 10 MHz to 10 GHz, 15-25% compression). For cases requiring ventilation (traction inverter transport with heat dissipation), EMI honeycomb vents (aluminum, 3.2mm cell, 12.7mm depth) provide 30-50 dB shielding at 1 GHz while allowing airflow. Cable pass-throughs use filtered cable glands (EMI-shielded, 40-60 dB).

Rolling Stock Component Transport

Traction Inverter Transport

• SiC traction inverter: Modern rolling stock traction inverters use SiC (silicon carbide) MOSFETs switching at 10-20 kHz (vs IGBT 2-4 kHz), providing 1.5-3 MW power conversion from 25kV AC or 750V DC to variable-frequency three-phase AC for traction motors. The inverter (80-200 kg, 800x600x400mm, $50,000-$150,000) contains power semiconductor modules (SiC MOSFET, 1200V/1700V, $500-$2,000 each), DC link capacitors (film, 1-5 mF, 1000V), control electronics (DSP/FPGA), and a liquid cooling system. Transport risks: SiC die cracking under mechanical shock (>50g); DC link capacitor internal short from vibration; cooling system leakage; ESD damage to control electronics. The case provides 50mm Ethafoam 600 (100 kg/m3, structural foam) with a CNC-milled cradle matching the inverter profile. The cooling fluid port (Gardena or Staubli quick-disconnect, 12mm) must be capped and sealed. ESD-safe foam (10^6-10^9 ohm) surrounds the control electronics section. The case has 4-point lifting handles (500N each), forklift-compatible base (180mm fork pockets), and 125mm total-lock castors (150 kg each) for handling the loaded case (100-250 kg total).
• Traction motor transport: Traction motors (200-600 kW, 300-800 kg, 600-900mm length, $15,000-$60,000) are heavy rotating machines with precision bearings and windings. The case provides 75-100mm Ethafoam 600 cradle with U-shaped pockets matching the motor stator profile. The motor shaft (output, 50-100mm diameter) must be protected from impact — a shaft protector sleeve (steel, 2mm) is installed and the case foam has a relief pocket for the shaft. The motor cable glands (6-12 power cables, 35-95mm2) must be capped. The case has 4-point lifting pad eyes (500 kg WLL each) for crane handling and a pallet base for forklift. Total loaded case weight: 400-1000 kg.
• Auxiliary converter: Auxiliary converters (50-200 kW, 30-80 kg) convert the traction DC link to auxiliary AC (400V 50/60 Hz) for train hotel loads (lighting, HVAC, doors). The case provides 50mm Ethafoam 600 with a custom cradle. The converter has internal contactors and transformers that must not be subjected to >30g shock (contactor bounce). The case foam limits transmitted shock to <20g during a 1m drop.
• Battery charger: Train battery chargers (24/48/110V DC output, 5-30 kW, 15-50 kg) charge the train battery from the traction supply. The charger contains power modules (DC-DC converter) that are ESD-sensitive. The case provides 50mm foam with ESD-safe foam (10^6-10^9 ohm) around the control electronics. The DC output terminals must have insulated caps (rated for the output voltage).

HVAC and Door Control Transport

• HVAC compressor transport: Train HVAC compressors (scroll or rotary, 5-20 kW, 30-60 kg) contain refrigerant (R134a or R410A) and must be transported with service valves capped (1/4 or 3/8 inch SAE flare). The case provides 50mm Ethafoam 600 cradle with valve cap pockets. The compressor must be oriented upright (oil level) during transport — the case includes an orientation indicator (tilt sensor or arrow label) and the foam cradle is designed for upright orientation only.
• Door control system: Train door controllers (PLC-based, 2-5 kg) and door drives (motor + gearbox, 5-15 kg) are transported in cases with 25mm foam. The door controller has connectors (M12 circular, Harting Han) that must be capped. The door drive gearbox must not be subjected to >50g shock (bearing brinelling). The case includes a hardware pouch for mounting bolts and door switch actuators.

Trackside Electronics Protection

Interlocking System Transport

• Interlocking modules: Trackside interlocking systems (Siemens SIMIS, Alstom VPI, Hitachi SIE, $5,000-$30,000 per module) are safety-critical electronic systems that control train routing. The modules are ESD-sensitive (CMOS, <250V HBM for some devices) and mechanically sensitive (connector unseating under vibration). The case provides 25mm ESD-safe foam (10^6-10^9 ohm) all sides, with connector caps (Harting, DIN 41612) installed. The case interior is ESD-safe (static-dissipative coating, 10^6-10^9 ohm). The case includes a dedicated compartment for interconnection cables (prefabricated, 1-5m) coiled with 10x bend radius.

Track Circuit and Axle Counter Transport

• Track circuit equipment: Track circuit transmitters and receivers ($2,000-$8,000) are electronic modules that detect train presence on a track section. The case provides 25mm ESD-safe foam with cable management for the track connection cables (typically 2-4 cables, 5-20m, 2-6mm2). The tuning units (mounted trackside) are in a separate compartment with 25mm structural foam.
• Axle counter: Axle counter evaluation point (EVC) and trackside counting heads ($3,000-$10,000) have magnetic wheel sensors that must not be exposed to strong magnetic fields during transport. The case foam is non-magnetic (PE, no ferrite fillers), and the case body is non-magnetic (aluminum, not steel). The case includes a warning label: “No magnetic materials.”

Signal Head and Point Machine Transport

• LED signal head: LED railway signals (dome, 100-200mm diameter, $500-$2,000) have precision optical elements (LED array, lens, visor). The case provides 50mm foam with a custom cradle matching the signal dome profile. The lens face has a 10mm air gap (no foam contact). The visor (aluminum or plastic, 200-400mm length) has a separate flat foam cradle. The signal cable (multicore, 5-12 cores, 2-5m) is coiled in a cable management compartment.
• Point machine (switch motor): Electric point machines (Siemens S700, Alstom PGM, $5,000-$20,000, 50-150 kg) convert electrical commands to mechanical switch movement. The machine has a precision gearbox, drive motor, and detection circuit. The case provides 50mm Ethafoam 600 cradle matching the machine profile. The drive rod clamp and lock mechanism must be in the retracted (transport) position and secured with a transit bracket. The case has 4-point lifting handles (300N each) and a pallet base.

Train Control and Communication Systems

ETCS/ERTMS Onboard Unit Transport

Component	Function	Value	Weight (kg)	Transport Risk
EVC (European Vital Computer)	Safety-critical onboard processor (SIL 4)	$20,000-$50,000	5-10	ESD, vibration (connector unseating), temperature
Balise antenna (BTM)	Reads trackside balise telegrams	$3,000-$8,000	2-5	Mechanical (antenna face), ESD
JRU (Juridical Recording Unit)	Black box data recorder	$2,000-$5,000	2-3	ESD, shock (memory integrity)
DMI (Driver Machine Interface)	Cab display + input	$3,000-$8,000	3-5	Touchscreen damage, ESD
Odometry system	Speed/position sensors (radar, accelerometer, wheel pulse)	$2,000-$5,000	1-3	Precision sensor shock, ESD

EVC transport case: The European Vital Computer is a SIL 4 (Safety Integrity Level 4, IEC 61508) safety-critical processor. The case provides 50mm ESD-safe foam (10^6-10^9 ohm) all sides, with all connectors (MVB, CAN, Ethernet, serial) capped with mating dummy connectors. The case interior is ESD-safe (static-dissipative coating). The case includes a desiccant system (silica gel, 2g/L) because the EVC has conformal-coated PCBs that must not be exposed to >60% RH for extended periods. The case is labeled “SIL 4 Safety-Critical Equipment — Handle with Care.”

GSM-R and Passenger Information Systems

• GSM-R radio: The GSM-R cab radio (Kapsch, Nokia, $3,000-$8,000) is a radio terminal for train-to-ground voice and data communication. The case provides 25mm ESD-safe foam with antenna connector caps (N-type or 7/16 DIN) installed. The handset (if included) has a separate foam pocket with a screen protector.
• PIS (Passenger Information System): PIS controllers and displays ($1,000-$5,000 per unit) are transported in cases with 25mm foam. The PIS display (LCD, 15-32 inch) has a foam screen protector (5mm closed-cell PE pad) and edge protection (25mm foam at all bezel edges). The PIS audio amplifier has a separate compartment with 25mm foam.
• CCTV and PA system: CCTV cameras (analog or IP, $200-$1,000) and PA amplifiers ($500-$2,000) are transported in a shared case with 25mm foam. Camera lenses have lens caps installed. The PA amplifier has speaker terminals capped. The case includes a cable management compartment for coaxial (RG59) or Ethernet (Cat6) cables and speaker cables (2-6mm2).

Railway-Specific Case Design

EN 45545-2 Fire Safety Compliance

Railway equipment cases must comply with EN 45545-2 (Railway applications – Fire protection on railway vehicles – Part 2: Requirements for fire behavior of materials and components). The standard defines hazard levels (HL1, HL2, HL3) based on the vehicle type and operation scenario:

Hazard Level	Application	Material Requirements	Case Material Impact
HL1	Surface vehicles (trams), low risk	T3.2: smoke density (DS <300); T3.3: toxicity index (CIT <1.5)	Standard foam (PE) acceptable; standard powder coating
HL2	Sleeper cars, metro (underground)	T3.2 (DS <300); T3.3 (CIT <1.5); T3.4: flame spread	Flame-retardant foam (melamine-impregnated, UL 94 V-0); halogen-free coating
HL3	High-speed rail, mainline sleeper (highest risk)	Strictest T3.2/T3.3/T3.4; oxygen index >28%	Halogen-free flame-retardant foam (UL 94 V-0, low smoke, low toxicity); halogen-free coating

Case fire safety design: For HL2/HL3 applications, the case interior foam must be halogen-free flame-retardant (melamine-impregnated polyethylene, UL 94 V-0, smoke density DS <300 per EN ISO 5659-2, toxicity index CIT <1.5 per EN 45545-2). The case gasket must be EPDM (halogen-free, low smoke). The powder coating must be halogen-free (no chlorine or bromine in the resin). The case exterior label must indicate EN 45545-2 compliance level (HL1/HL2/HL3).

Thermal Management for Railway (-40 to +70C)

• Thermal insulation: The case interior is lined with 10-25mm closed-cell PE foam (thermal insulation) in addition to the equipment cradle foam. This provides a thermal time constant of 2-4 hours, slowing temperature changes during transport between cold (arctic, -40C) and warm (tropical, +70C) environments.
• Desiccant and humidity control: Silica gel desiccant (2g per liter of case interior) in Tyvek pouches, positioned near electronic equipment. A humidity indicator card (10/20/30% RH, 3-spot) is mounted inside the case. The case seal (EPDM gasket, 25-30% compression) prevents external moisture ingress.
• Gore-Tex pressure equalization: An IP68-rated Gore-Tex vent (0.1-0.5 bar) equalizes pressure during altitude changes (mountain rail transport) and temperature changes, preventing gasket seal compromise from pressure differentials.

Battery and Energy Storage Transport

Lithium-Titanate (LTO) Traction Battery Transport

Modern trains use lithium-titanate (LTO) batteries for traction (regenerative braking energy storage) and auxiliary power. LTO batteries (1-50 kWh, 50-500 kg) have excellent safety (thermal runaway onset >250C, no dendrite growth), but still require UN38.3 transport compliance:

• UN classification: UN3480 (standalone lithium-ion battery) for transport. SOC <30% for air transport; <50% for ground transport. The case must include Class 9 lithium battery hazard labeling.
• Case design: The battery case provides 50-75mm flame-retardant foam (UL 94 V-0, melamine-impregnated, for EN 45545 HL2/HL3 compliance) around the battery. The case includes a pressure relief valve (0.15-0.3 bar, IP67 under normal conditions) for gas venting in thermal runaway. The case seal is FKM (Viton) for electrolyte chemical resistance. An internal containment tray (HDPE, 2mm, raised edges 10mm) captures any electrolyte leakage with an absorbent pad (vermiculite, 100g per liter of electrolyte).
• BMS transport: The Battery Management System (BMS) is transported separately or with the battery. The BMS case provides ESD-safe foam (10^6-10^9 ohm) around the BMS PCB, connector caps (CAN, HVIL, sensor), and 25mm foam for the contactor and pre-charge relay (shock isolation).
• Thermal runaway protection: For LTO batteries (inherently safer), the case includes intumescent coating (1-3mm, 200C activation) as a secondary thermal barrier. The case exterior has a gas warning label indicating potential for CO/H2 emission.

Backup Battery Transport (110V DC)

Train backup batteries (lead-acid VRLA or Ni-Cd, 110V DC, 50-200 Ah, 30-150 kg) provide emergency power for lighting and door operation when traction power is lost. The case provides 50mm Ethafoam 600 cradle for the battery. For lead-acid batteries, the case includes an acid containment tray (HDPE, with an absorbent pad for sulfuric acid, 1L capacity per 100 Ah). For Ni-Cd batteries, the case includes a KOH electrolyte containment tray (HDPE, with citric acid neutralizer absorbent).

Cable and Harness Management

Railway Cable Standards

Cable Standard	Application	Temperature	Fire Performance	Case Routing
EN 50382 (railway rolling stock)	High-temperature power and control cables	120C continuous; 155C overload	EN 45545-2 (HL2/HL3)	10x diameter bend radius; hook-loop straps
EN 50264 (railway rolling stock)	Standard power and control cables	70-90C	EN 45545-2	10x diameter bend radius
Railway EMC cable (braided shield)	Signal and communication cables	-40 to +90C	EN 45545-2	360-degree shield grounding; 10x bend radius

Connector and Harness Transport

• Harting Han connector transport: Heavy-duty rectangular connectors (Harting Han M, Han Q, 10-64 pins, IP65/IP66/IP67) are standard in railway rolling stock. Connectors not installed in equipment are transported in individual foam pockets (25mm all sides) with dust caps installed. The case includes a connector hardware pouch (gaskets, contact inserts, crimp ferrules, threaded couplings).
• Amphenol MIL-DTL-38999 (Series III): Circular connectors used in railway for high-reliability applications. The case provides individual foam pockets (25mm all sides) with connector end caps. The case includes a tooling compartment for crimp tools and insertion/extraction tools.
• Cable harness coiling: Prefabricated cable harnesses (5-50m total length) are coiled in cable management trays (aluminum, 2mm, with hook-and-loop strap slots at 300mm intervals). The minimum bend radius is 10x cable diameter (100-300mm for typical railway cables). The harness is coiled flat (no figure-8 coiling) to prevent crossover stress. Each harness end has a labeled tag (wire number, connector type).

Industry Standards for Railway Cases

• EN 61373 (Vibration and Shock): Railway applications – shock and vibration tests for rolling stock equipment. Categories 1 (body), 2 (bogies), 3 (axles) with increasing severity. Cases for railway equipment transport should provide vibration isolation consistent with the equipment’s operational category.
• EN 50121-3-2 (EMC): Railway applications – electromagnetic compatibility – Part 3-2: Rolling stock – Apparatus. Defines emission and immunity limits. Cases for railway equipment must provide EMI shielding (60-80 dB from 30 MHz to 6 GHz) consistent with EN 50121-3-2 immunity levels.
• EN 45545-2 (Fire Safety): Railway applications – fire protection on railway vehicles – Part 2: Requirements for fire behavior of materials and components. Hazard levels HL1/HL2/HL3. Cases for railway applications must use halogen-free flame-retardant materials for HL2/HL3.
• EN 62264 (Enclosure): While primarily an industrial integration standard, EN 62264 is referenced for equipment enclosure design in railway applications. Cases should provide IP protection (IP54 minimum for internal rolling stock equipment, IP65 for trackside).
• EN 50128 / EN 50129 (Safety Integrity): Software and hardware safety integrity for railway signaling and control. While these standards apply to the equipment design, cases for SIL-certified equipment must provide mechanical protection consistent with the equipment’s safety integrity requirements.
• IEC 61508 (SIL): Functional safety of electrical/electronic safety-related systems. Railway signaling equipment is typically SIL 4 (highest safety level). Cases for SIL 4 equipment must provide maximum mechanical and ESD protection.
• IRIS (International Railway Industry Standard): Quality management standard specific to the railway industry (based on ISO 9001 with railway-specific requirements). Cases manufactured for railway customers under IRIS certification provide quality assurance specific to railway requirements.

Testing Standards for Railway Cases

• Vibration test (EN 61373): Functional test (5h per axis) and extended test (15h per axis). Category 1: 5g longitudinal, 3g transverse, 4g vertical. Cases must limit transmitted vibration to levels that do not damage equipment.
• Shock test (EN 61373): 30g half-sine 30ms, 3 pulses per axis (6 total). Category 1. Tests mechanical shock survival.
• EMC test (EN 50121-3-2): Immunity to 25kV AC field (300 V/m), traction PWM (10-50 V/m), GSM-R (10-20 V/m). Case shielding effectiveness verified per IEEE-299.
• Fire test (EN 45545-2): T3.2 smoke density (DS <300), T3.3 toxicity (CIT <1.5), T3.4 flame spread. Material-level testing of case foam, gasket, and coating.
• IP test (IEC 60529): IP54 (internal) or IP65/IP66 (trackside). Dust and water ingress protection.
• Thermal cycling (IEC 60068-2-14): -40 to +70C, 5 cycles, 4h per extreme. Tests extreme temperature transport.
• Drop test (ISTA 3A or ATA 300 Cat I): 10 drops from 0.91m. Tests transport durability.

OEM/ODM Solutions for Railway and Transit Industry

For OEM and ODM customers in the railway and transit industry, we offer fully customized aluminum cases:

• Traction inverter cases: 50mm Ethafoam 600 cradle, SiC MOSFET shock <50g, DC link capacitor vibration isolation, cooling port caps (Gardena/Staubli), ESD-safe control electronics section (10^6-10^9 ohm), 4-point lifting 500N, forklift base, 125mm total-lock castors, 100-250kg handling
• Traction motor cases: 75-100mm Ethafoam 600 U-cradle, shaft protector sleeve, cable gland caps (35-95mm2), 4-point lifting pad eyes 500kg WLL, pallet base, 400-1000kg handling
• Auxiliary converter/battery charger cases: 50mm Ethafoam 600, contactor shock <30g, ESD-safe foam for control electronics, DC output terminal caps
• HVAC/door control cases: HVAC compressor upright cradle (valve caps, tilt indicator), door controller 25mm foam (M12/Harting caps), door drive gearbox <50g shock
• Trackside electronics: interlocking module cases (25mm ESD-safe, Harting/DIN 41612 caps, cable management), track circuit cases, axle counter cases (non-magnetic foam, no magnetic warning), signal head cases (lens air gap, visor cradle), point machine cases (50mm Ethafoam 600, transit bracket, pallet base)
• ETCS/ERTMS: EVC cases (50mm ESD-safe, SIL 4 label, desiccant, connector dummy plugs), balise antenna cases (antenna face protection), JRU cases (memory integrity), DMI cases (touchscreen protector), odometry sensor cases
• GSM-R/PIS/CCTV: GSM-R radio cases (antenna caps), PIS display cases (screen protector, edge protection), CCTV/PA shared cases (lens caps, speaker terminal caps, cable management)
• Fire safety: EN 45545-2 HL1/HL2/HL3 halogen-free flame-retardant foam (melamine-impregnated, UL 94 V-0, DS <300, CIT <1.5), halogen-free coating, EPDM gasket, HL compliance label
• Thermal management: 10-25mm thermal insulation (2-4h time constant), desiccant 2g/L, humidity indicator card, Gore-Tex IP68 vent
• Battery transport: LTO battery cases (UN3480, UL 94 V-0 foam, pressure relief 0.15-0.3bar, FKM seal, HDPE containment tray, intumescent coating), BMS cases (ESD-safe, connector caps, relay isolation), backup battery cases (acid/KOH containment tray)
• Cable/harness: EN 50382/50264 cable management (10x bend radius, flat coil, hook-loop straps), Harting Han connector pockets (25mm, dust caps), Amphenol 38999 pockets, crimp/insertion tooling compartment
• EMI shielding: 6061-T6 2.0mm body (60-80 dB 30MHz-6GHz), nickel-graphite conductive gasket (60-100 dB), EMI honeycomb vents (30-50 dB at 1GHz), filtered cable glands (40-60 dB)
• Standards compliance: EN 61373 (cat 1/2/3), EN 50121-3-2 (EMC), EN 45545-2 (HL1/HL2/HL3), EN 62264, EN 50128/50129, IEC 61508 (SIL 4), IRIS
• Testing validation: EN 61373 vibration/shock, EN 50121-3-2 EMC, EN 45545-2 fire, IEC 60529 IP54-IP66, thermal cycling -40/+70C, ISTA 3A/ATA 300 drop
• Branding: laser-engraved EN 45545 HL compliance labels, SIL 4 equipment warning labels, IRIS certification plates, RAL/Pantone color matching

Our ISO 9001 certified facility in Changzhou engineers railway and transit cases validated through EN 61373 vibration and shock testing, EN 50121-3-2 EMC verification, EN 45545-2 fire safety material testing, IEC 60529 IP testing, IEC 60068-2-14 thermal cycling (-40 to +70C), and ISTA 3A/ATA 300 drop testing. For custom railway case specifications, visit our OEM/ODM Customization page or review our certifications and standards.

Contact Us for Railway-Grade Aluminum Cases

From EN 61373 Category 1 vibration-isolated traction inverter cases with 50mm structural foam cradles, SiC MOSFET shock protection, and ESD-safe control electronics sections to EN 45545-2 HL3 fire-compliant trackside electronics cases with halogen-free flame-retardant foam and SIL 4 EVC protection, every railway and transit case we engineer is validated through EN 61373 vibration and shock testing, EN 50121-3-2 EMC verification, EN 45545-2 fire safety testing, and thermal cycling. Our expertise in railway vibration profiles (EN 61373 cat 1/2/3), rolling stock component transport (traction inverter, motor, converter, charger), trackside electronics protection, ETCS/ERTMS train control, EN 45545 fire safety engineering, railway EMI shielding (25kV AC, traction PWM), battery transport (LTO UN3480), and railway industry standards (EN 61373, EN 50121-3-2, EN 45545-2, IEC 61508 SIL 4, IRIS) ensures that your railway and transit equipment arrives protected and ready for installation.

For custom railway-grade case specifications:

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• Request a Quote with your equipment type (traction inverter/motor/converter/charger/interlocking/signal/ETCS/battery), EN 61373 category, EN 45545 hazard level, dimensions, weight, and railway environment (rolling stock/trackside)

Manufactured in Changzhou, China under ISO 9001 quality management. Compatible with EN 61373 (cat 1/2/3), EN 50121-3-2 (EMC), EN 45545-2 (HL1/HL2/HL3), EN 62264, EN 50128/50129, IEC 61508 (SIL 4), IRIS, IEC 60529 (IP54-IP66), IEC 60068-2-14, ISTA 3A, and ATA 300 Category I.