Description

Product Description

• Automatic Transfer Switch (ATS) enables seamless transitions between grid and backup power in under 20 ms, maintaining uninterrupted operation of connected systems.

• Incorporates the EMS300CP energy management system to monitor, optimise and control energy flows in real time for efficient system operation.

• Built-in 250 kVA isolation transformer protects sensitive equipment and ensures electrical safety between sources.

• Rugged IP55 rated enclosure and anti-corrosion C3/C5 coating suitable for outdoor and industrial environments.

• Air-cooled design for reliable thermal performance with remote firmware upgrade capability via iSolarCloud platform.

• Designed to pair with large Sungrow energy storage systems (e.g., PowerStack configurations) and hybrid inverters to provide integrated backup and energy management.

Technical Specifications

General

• ATS Model: EMS300 CP with 250 kVA isolation transformer.

• Function: Automatic grid/off-grid transfer and energy management.

• Nominal Voltage: 400 V AC.

• Nominal Frequency: 50 Hz / 60 Hz.

• Switching Time (Grid to Backup): ≤20 ms.

Power & Protection

• Isolation Transformer Capacity: 250 kVA.

• Degree of Protection: IP55 (dust and water resistant).

• Corrosion Protection: C3 standard (C5 optional).

• Operating Temperature Range: –30 °C to +50 °C (with derating over +45 °C).

• Maximum Operating Altitude: Up to 3000 m.

• Humidity Range: 0 % to 100 % RH.

Cooling & Enclosure

• Cooling Method: Air-cooled.

• Enclosure Dimensions (approx): 1150 mm × 2450 mm × 1610 mm (W × H × D).

• Weight (approx): 2800 kg.

Communications & Control

• Communication Interface: Ethernet.

• Protocol: Modbus TCP.

Certifications

• Certified to multiple international standards including IEC 62619, IEC 62040, IEC 61000, UN 38.3, and NRS 097-2-1.

Applications
Automatic energy switching and management for commercial/industrial solar + battery installations, ensuring continuity of power supply, system coordination and protection of electrical assets under grid outages or disturbances.