Automatic Transfer Switch HPS100/120/150

ATESS Automatic Transfer Switch HPS100/120/150 – Seamless Hybrid Power Switching

Automatic Transfer Switch HPS100/120/150

The ATESS HPS Automatic Transfer Switch (ATS100/120/150) is a critical accessory for ATESS HPS inverter systems, designed to automatically switch power between the utility grid and a diesel generator. Ideal for hybrid solar installations, this switch ensures continuous, reliable power for industrial, commercial, and critical load applications.

Key Features

Automatic Power Switching

• Monitors grid stability and automatically switches to generator during outages
• Returns to grid power once stability is restored
• Reduces downtime and ensures operational continuity

HPS System Compatibility

• Designed specifically for HPS100, HPS120, and HPS150 inverter systems
• Supports generator remote control for full automation
• Flexible management options simplify integration into hybrid energy setups

Safety & Protection

• Lightning protection: Type II
• Protection degree: IP20
• Output, grid, and DG breakers rated at 400 A
• Optional zero-export function for grid-tied solar systems

Technical Specifications

• Rated voltage: 400 V
• Rated current: 346 A
• Rated frequency: 50/60 Hz
• Rated power: 240 kVA
• Operating temperature: -25°C to +55°C
• Relative humidity: 0–95% non-condensing
• Dimensions (W/H/D): 700 × 1650 × 500 mm
• Weight: 125 kg
• Communication: RS485 / CAN

How It Works

The ATESS ATS sits at the junction where utility and generator feeds meet the HPS inverter. When a grid outage or voltage instability is detected, the ATS signals the generator to start and switches the supply path to generator output. Once grid power returns to normal, it automatically reverts to grid supply, keeping connected loads continuously powered.

This automated system eliminates the need for manual intervention, protects sensitive equipment, and ensures seamless, uninterrupted operation for hybrid solar systems.

Ideal Applications

• Commercial & industrial hybrid solar installations
• Critical load systems requiring continuous power
• Backup power integration with HPS inverters
• Remote monitoring and smart energy management setups

ATESS Automatic Transfer Switch HPS100/120/150 – Seamlessly switch between grid and diesel generator for HPS hybrid solar systems. 240kVA, 400V, 346A, IP20, Type II lightning protection, automatic, reliable, and fully compatible with HPS100/120/150 inverters.