ALSTOM EP3-F-4-EN

Description

Product Description

The ALSTOM EP3-F-4-EN is a specific model within Alstom’s EP3 series of industrial power supply units. Designed for reliability and flexibility in control system applications, this switch-mode power supply converts a primary AC or DC input into a stabilized and isolated DC output, typically 24V DC, which is the standard voltage for powering PLCs, sensors, relays, and other automation devices. The ALSTOM EP3-F-4-EN is engineered to deliver clean and regulated power in demanding industrial environments, ensuring the stable operation of critical control electronics. Selecting the EP3-F-4-EN for a panel design provides a dedicated power source validated for compatibility within Alstom-centric systems. Its robust construction makes the ALSTOM EP3-F-4-EN a trusted component for system integrators seeking dependable performance.

Product Parameters

• Manufacturer / Brand: Alstom

• Product Type: Switch-Mode Power Supply (SMPS)

• Model: EP3-F-4-EN

• Series: EP3

• Input Voltage Range: Wide-range input, typically 85-264V AC or 100-375V DC, suitable for global mains voltages.

• Output Voltage: Nominal 24V DC.

• Output Current: Rated for 4A continuous output (approximately 96W), as indicated by the “-4-” in the model number.

• Efficiency: High efficiency (typically >90%) to minimize heat generation and energy loss.

• Protections: Integrated protections against overload, short-circuit, and overvoltage. May feature overtemperature protection.

• Cooling: Convection-cooled (fanless) design for silent operation and higher reliability due to fewer moving parts.

• Mounting: Standard DIN-rail mounting (35mm) for easy installation in control cabinets.

• Certifications: Complies with relevant international standards for safety (e.g., UL, cUL, CE) and electromagnetic compatibility (EMC).

Advantages and Features

• High Reliability and Stability: Provides a stable DC output voltage with low ripple, crucial for the sensitive operation of electronic control equipment.

• Wide Input Voltage Range: The ALSTOM EP3-F-4-EN can operate reliably despite fluctuations in the mains supply, making it suitable for areas with unstable power grids.

• Robust Industrial Design: Built to withstand typical industrial challenges such as electrical noise, vibration, and elevated ambient temperatures.

• Comprehensive Safety Protections: Built-in electronic protections safeguard both the power supply itself and the connected load from damage due to fault conditions.

• Maintenance-Free Operation: The fanless design ensures silent operation and eliminates a common point of failure, leading to lower maintenance needs.

• Easy Integration: The DIN-rail mounting and clear terminal labeling simplify installation and wiring within control panels.

Application Cases in Key Fields

• Industrial Control Panels: Used as the primary 24V DC source in PLC cabinets, motor control centers (MCCs), and distributed I/O enclosures across all manufacturing sectors.

• Railway Control Systems: Provides clean power for signaling equipment, trackside control units, and onboard non-traction control systems where reliable power is essential.

• Process Automation: Installed in control panels for chemical, water treatment, and oil & gas facilities to power instrumentation, controllers, and valve actuators.

• Machinery and OEM Equipment: Integrated into the control systems of packaging machines, printing presses, and robotic workcells.

Comparison with Competing Products

Compared to similar power supplies from Siemens (SITOP PSU100/200), Phoenix Contact (QUINT), or Mean Well, the ALSTOM EP3-F-4-EN offers comparable performance in terms of electrical specifications, efficiency, and protections. Its primary advantage is its established use within projects and specifications that are based on Alstom components, particularly in rail and large industrial installations. Competing products may offer a wider range of power ratings, modular buffer and redundancy concepts, or more compact designs. However, for maintaining legacy systems, adhering to specific tender requirements, or ensuring a known and validated supply chain, the ALSTOM EP3-F-4-EN is the designated choice.

Selection Suggestions and Precautions

• Verify Input Voltage Compatibility: Ensure your available mains supply (AC or DC) falls within the EP3-F-4-EN‘s specified input voltage range (e.g., 110V AC or 230V AC).

• Calculate Total Load Current: Sum the current consumption of all connected 24V DC devices. The total must be less than the 4A rating of the power supply, with a recommended derating of 20-30% for longevity, especially in warm environments.

• Consider Ambient Temperature: The output power rating is specified at a maximum ambient temperature (e.g., 60°C). If installed in a hot enclosure, derate the usable current accordingly.

• Ensure Proper Ventilation: Even with convection cooling, provide adequate space around the unit for airflow to prevent overheating.

• Implement Input Protection: Protect the power supply’s input with a suitably rated fuse or circuit breaker as per local electrical codes and the manufacturer’s instructions.

• Source from Authorized Distributors: To guarantee authenticity, safety certifications, and performance, procure the ALSTOM EP3-F-4-EN from authorized automation or electrical component suppliers.

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