Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
|---|---|
| Product Model | DCC2223A 3EST125-977 |
| Manufacturer | Bombardier |
| Product Category | Drive Control Unit / Traction Drive Controller |
| Typical Supply Voltage | 100 – 240 V AC (typical board input) |
| Input Current | ≤ 1.5 A (example specification) |
| Output Power Rating | ~2.3 kW (example spec for board portion) |
| Operating Temperature | –20 °C to +50 °C (industrial rail vehicle range) |
| Protection Class | IP54 (typical enclosure rating) |
| Communication Protocols | Modbus RTU, CANopen (example field interfaces) |
| Application Environment | Rail traction / vehicle subsystem |
| Module Weight | Approx. 1 kg (unit board) |
Product Introduction
The Bombardier DCC2223A 3EST125-977 is a high-performance drive control unit designed for rail vehicle propulsion and traction applications. Within Bombardier’s advanced drive systems, this controller module handles the management, monitoring and regulation of motor drive power, enabling smooth acceleration, deceleration, and efficient energy usage on board trains and other transit vehicles.
As the drive control unit, the DCC2223A 3EST125-977 integrates into the vehicle’s traction control system and interfaces with traction inverters, converters, braking resistors or energy-recovery systems. It receives inputs from the vehicle control network, processes commands for torque/speed, monitors motor and system parameters, and drives the power stage accordingly. The rugged design accommodates the demanding environment of rail operations — vibration, thermal cycling, wide ambient conditions — and supports diagnostics and system protection essential in transit systems.
In the broader architecture of a transit vehicle’s propulsion system, this module is a critical element enabling reliable traction control, regenerative braking, fault detection, and maintenance readiness. Its presence enhances system reliability, enables predictable performance, and contributes to long-term lifecycle support for rolling-stock drive platforms.
Core Advantages and Technical Highlights
Advanced traction control logic:
The DCC2223A 3EST125-977 leverages sophisticated algorithms tailored for rail traction applications, enabling smooth transitions, coordinated motor control, and efficient energy recovery during braking phases.
Modular and service-ready design:
Designed as a replaceable control module, the DCC2223A 3EST125-977 fits within the vehicle control system rack or electronics bay, simplifying spare-parts management, replacement cycles, and reducing downtime. Its compact size and standardized board format support fleet maintenance strategies.
Durable for rail environment:
With qualification for wide ambient temperature ranges, high vibration, and ingress protection (e.g., IP54), the unit is built to survive heavy-duty usage in transit service. It withstands shocks, repeated cycles, and harsh mechanical conditions.
Integrated diagnostics and communications:
Featuring field-bus communication support and onboard monitoring, the module provides early fault detection, logged events, and remote diagnostic access — key capabilities for modern maintenance practices and condition-based service.
Compatibility with propulsion system ecosystem:
The DCC2223A 3EST125-977 is engineered to interface seamlessly with Bombardier’s propulsion controllers, traction inverters and vehicle control systems, ensuring interoperability across subsystems and enabling efficient train control integration.
Typical Application Scenarios
The DCC2223A 3EST125-977 is deployed in the following types of systems:
- Mainline electric or diesel-electric trains where advanced traction drive control is required for high-speed or heavy freight service.
- Light rail or metro vehicles with regenerative braking capability and frequent start/stop cycles, where reliable drive control increases efficiency.
- Retrofit or upgrade programmes of existing rolling-stock drive systems, replacing older analog or less capable controllers with modern module-based units.
- Vehicle modules where space and serviceability matter, such as under-floor electronics bays or traction drive cabinets within rail vehicles.
- Energy-recovery systems in transit platforms, where drive-control modules must coordinate braking energy capture and return to the system or grid.
In all these scenarios, the module helps deliver smoother traction operation, reduced energy consumption, improved availability, and simplified servicing.
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