Socomec ATyS 2500A

The Socomec ATyS 2500A is a robust and high‑performance 4‑pole automatic transfer switch (ATS) engineered to ensure seamless and reliable power switching between multiple power sources. Built by Socomec, a global leader in critical power equipment, the ATyS series is widely used where continuity of electrical supply is essential — including commercial buildings, industrial facilities, data centers, hospitals, and critical infrastructure installations.

The ATyS 2500A is specifically designed to manage high current loads up to 2500 A, making it suitable for medium and large power distribution systems. Its 4‑pole configuration provides complete switching capability for three‑phase power systems with neutral, ensuring safe, balanced transfers in both emergency and normal operating conditions.

At the heart of the ATyS 2500A is its intelligent automatic control logic, which continuously monitors the quality and availability of primary and secondary power sources (such as mains utility and generator supply). When a power interruption or fault is detected on the primary source, the ATS automatically initiates a transfer to the secondary source — with configurable timing and delay settings — to maintain uninterrupted power to critical loads. Once the primary source is restored and stable, the system returns the load seamlessly.

Designed for demanding environments, this transfer switch combines rugged mechanical construction with advanced electrical components. The ATyS 2500A offers high reliability, minimal maintenance requirements, and long operational life even under frequent switching cycles. With built‑in safety features like interlocks, fault detection, and clear status indication, operators can be confident in its safe integration within electrical distribution panels and switchrooms.

In addition to its automatic mode, the ATyS 2500A supports manual operation, giving technicians full control during commissioning, maintenance, or specific operational scenarios.

Whether protecting critical loads from mains failure, coordinating generator backup systems, or enabling controlled switching between renewable and utility sources, the Socomec ATyS 2500A stands as a trusted solution for ensuring power continuity, safety, and operational efficiency in any mission‑critical electrical system.

Technical Specifications

General

• Product Name: Socomec ATyS 2500A

• Type: Automatic Transfer Switch (ATS)

• Poles: 4‑Pole (Three phases + Neutral)

• Rated Current: 2500 A

• Application: Automatic changeover between power supplies (utility ↔ backup generator / alternate source)

Electrical Ratings

• Rated Operational Voltage (Ue): Typically 400 V AC (three‑phase)

• Rated Frequency: 50 Hz / 60 Hz

• Rated Current (In): 2500 A continuous

• Short‑Time Withstand Current: High breaking capacity suitable for industrial distribution systems

• Utilization Category: AC‑33B (for electrical distribution and switching of resistive and inductive loads)

Switching & Control

• Automatic Operation:
  • Monitors voltage and frequency of primary and secondary sources
  • Automatically transfers load upon source failure
  • Transfer delay and return delay configurable

• Manual Operation:
  • Mechanical handle or control panel can override automatic mode
  • Enables testing, maintenance, or special switching sequences

• Changeover Logic: Intelligent controller with logic for reliable source selection

• Interlocks: Mechanical/electrical interlocks prevent unsafe switching

Protection & Safety

• Overcurrent Protection: External protective devices recommended (fuses, breakers)

• Short Circuit Protection: External circuit breakers typically integrated upstream

• Electrical Safety: Designed for safe handling and operation in distribution panels

• Arc Protection: Considerations for arc fault detection and mitigation in panel design

Mechanical & Physical

• Enclosure: Panel‑mount / switchgear compatible, robust industrial housing

• Mounting: Designed for enclosure integration or switchboard installation

• Contact Type: Heavy‑duty power contacts with high endurance for frequent switching

• Actuation Mechanism: Electrically driven changeover mechanism with feedback indication

Control & Interface

• Control Module: Integrated logic controller (programmable parameters)

• Status Indication:
  • Source availability indicators (primary, secondary)
  • Load transfer status
  • Fault / trip indication

• Auxiliary Contacts: Available for remote signaling and PLC integration

• Remote Control: Capable of interfacing with building management or automation systems

Environmental

• Operating Temperature: Standard industrial range (often −5 °C to +40 °C or +50 °C)

• Storage Temperature: Broader range for non‑operational conditions

• Humidity: Suitable for indoor electrical distribution environments

• Altitude: Designed for typical installation altitudes (with derating if necessary above certain limits)

Standards & Compliance

• Electrical Standards: Designed to meet applicable national and international standards for automatic transfer switches (e.g., IEC/EN specifications for ATS devices)

• Safety Standards: Conforms to industrial safety and insulation requirements for power distribution equipment

Typical Use Cases

• Automatic switching for generator backup systems

• Power source redundancy in data centers and critical facilities

• Industrial process power continuity

• Commercial buildings and infrastructure with uptime requirements

• Integration with building automation and control systems