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Electrical Solutions

Power Electronics
at the Core of Traction

From bridge rectification to silicon-controlled switching, our electrical product range covers every critical power conversion and control function in diesel-electric locomotive, mining, and marine systems. Built to OEM equivalence. Manufactured in India.

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Core Range

Six Core Product Families

Each family is engineered for a specific function within the locomotive power circuit. Every product is tested at full rated current before despatch and validated against OEM performance requirements.

Bridge Rectifiers

Alternator Output Conversion

Converting traction alternator AC output to DC for traction motor supply. Three-phase and single-phase bridge rectifiers manufactured with high-purity silicon diode stacks. Optimised for the thermal cycling demands of diesel-electric duty, rated for continuous high-current operation across wide ambient temperature ranges.

Specifications
Current: 100A — 2,500A
PIV ratings up to 2,400V
Temp: -40°C to +85°C
Platform
ALCO · EMD · GE

Fuel Pump Inverters

VFD Control

Variable-frequency drives controlling locomotive fuel injection pump motors. Designed for reliable start-up in extreme ambient temperatures and long-duration duty cycles with minimal maintenance requirements. Conformal-coated PCB assemblies protect against moisture, dust, and vibration in harsh locomotive environments.

Specifications
Range: -20°C to +70°C
Input: 72V DC battery bus
Conformal-coated PCBs
Platform
ALCO · EMD

SCR Assemblies

Power Regulation

Phase-controlled power regulation for traction and auxiliary circuits. Silicon-Controlled Rectifier assemblies individually tested at full rated current before assembly and despatch. Each SCR stack is burn-in tested to 100% to eliminate early-life failures, ensuring the assembly performs reliably from first fitment.

Specifications
IT(AV): 55A — 1,600A
dV/dt: 500 V/µs
100% burn-in tested
Platform
GE · EMD · ALCO

AC/DC Converters

Auxiliary Power

Regulated DC supply for control electronics, lighting, and HVAC systems. Auxiliary power conversion modules drawing from the main traction alternator output and supplying stable, regulated DC voltages for locomotive control systems. Available in IP54-rated enclosures.

Specifications
Output: 12V, 24V, 72V, 110V DC
Efficiency: >92% at rated load
IP54 enclosures available
Platform
Multi-platform

Excitation Diodes

Field Regulation

High-reliability diodes for alternator excitation and field regulator circuits. Manufactured using silicon mesa technology for superior forward voltage characteristics and long operational life under continuous load. Available in stud and disc mount configurations.

Specifications
PIV: Up to 1,800V
Current: 15A — 300A
Stud and disc mounts
Platform
ALCO · EMD · GE

Custom Electrical Assemblies

Bespoke Engineering

Modified ratings, alternative housings, and bespoke configurations to specification. Where a standard product does not meet your platform or duty cycle requirement, our engineering team designs to your specification. Modified power ratings, alternative housing formats, non-standard output voltages, we manufacture to your drawings or sample components.

Specifications
Any power rating or output configuration
NDA-protected design and manufacturing
Prototype to production run capability
All platforms Discuss Needs →
Platform Coverage

Electrical Components for Every Major Platform

Every electrical product in our range is manufactured to the dimensional, material, and performance specifications of the original platform. Below is a guide to which electrical assemblies are applicable to each locomotive family.

ALCO

Bridge rectifiers, excitation diodes, fuel pump inverters, contactors, and relays for ALCO-designed locomotives operated by Indian Railways and global export fleets.

Key Electrical Products
  • Bridge Rectifiers
  • Excitation Diodes
  • Fuel Pump Inverters
  • Contactors
  • Relays
  • Surge Arresters
  • Transformers & Transductors
Models Covered
WDM-2 WDG-3A WDP-4 WDM-3A WDM-3D WDG-4

EMD

SCR assemblies, AC/DC converters, fuel pump motors, and power contactors for the modern EMD fleet in Indian Railways service and global operations.

Key Electrical Products
  • SCR Assemblies
  • AC/DC Converters
  • Fuel Pump Motors
  • Power Contactors
  • Relays
  • Bus Bars
  • Resistors
Models Covered
GT46MAC GT46PAC GT26CW JT26CW EMD SD40 EMD SD70

GE

SCR assemblies, backplanes, control cards, bus bars, and power supplies for GE Evolution Series and legacy C-C power units worldwide.

Key Electrical Products
  • SCR Assemblies
  • Backplanes
  • Bus Bars
  • Power Supplies
  • Contactors & Kits
  • Fuses & Limiters
  • Resistor Panels
Models Covered
ES43ACi ES57ACi U18B U20C C30-7

Don't see your platform? Our engineering team can assess compatibility for any locomotive type.

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Technical Standards

Designed Around Your Operating Envelope

Every Elixir Engineering electrical product is designed and validated against the actual operating conditions of diesel-electric locomotive service, including wide ambient temperature swings, sustained vibration, high humidity, and continuous high-current duty cycles.

-40°C to +85°C
Operating Temperature
IEC 60068-2-6
Vibration Rating
95% RH
Humidity (Non-condensing)
100% Tested
Full Current Validation

All products undergo full electrical testing at rated current and voltage before despatch. Thermal performance is validated against locomotive duty cycles, not laboratory bench conditions, ensuring the component performs reliably in the field from the first day of service.

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Why Elixir Engineering

OEM Equivalence.
Faster Lead Times.
Local Support.

Our electrical components are not reverse-engineered copies. Every design is validated against OEM performance requirements using modern simulation tools and physical test rigs, then optimised for Indian and global operating conditions; higher ambient temperatures, variable power quality, and demanding maintenance cycles.

The result: components that meet or exceed OEM specification at substantially lower total cost of ownership, with a local engineering team available for technical support throughout the product lifetime.

Parameter OEM Elixir Engineering
Performance standard Specified Equivalent
Lead time 12–24 weeks 4–8 weeks
Technical support Centralised / overseas Local engineering team
Cost index 100% 55–75%

Full Electrical Products Catalogue

Browse individual part numbers and configurations available in our standard range.

Alarms & Lighting ARC CHUTE BACKPLANE Bus Bar Contactors & Kits Fuses & Limiters Power Supplies Relays Resistors Switches

Ready to Partner with Elixir Engineering?

Download our complete electrical product catalogue or contact our engineering team to discuss your specific requirements.

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