nz7-125h/4/100 chint 100a 4 pole automatic changeover switch

Why Choose the Chint NZ7-125H/4/100 Automatic Transfer Switch?

The Chint NZ7-125H/4/100 is a reliable 4 pole automatic transfer switch (ATS) designed for safe and efficient changeover between two power supplies. It is used to help maintain continuity of supply by automatically transferring electrical loads from the normal source to a standby source when required.

As part of the Chint NZ7 Series Automatic Transfer Switching Equipment, this model combines intelligent control, compact construction and dependable dual interlocking to support critical power distribution applications. It is suitable for installations where automatic mains changeover, standby generator switching and resilient electrical supply are required.

With a rated operational current of 100A and a 4 pole configuration, the NZ7-125H/4/100 is ideal for three-phase four-wire systems in commercial, industrial and building services environments. Its robust design makes it suitable for control panels, distribution boards and automatic changeover systems.

Key Advantages

• 100A automatic transfer switch for reliable power source changeover.
• 4 pole switching suitable for three-phase four-wire electrical systems.
• Designed for automatic transfer between normal and standby power supplies.
• Mechanical and electrical interlocking helps prevent simultaneous source connection.
• Compact construction supports efficient panel and distribution board installation.
• Suitable for mains-to-mains and mains-to-generator changeover applications.

Key Features

• Chint NZ7 automatic transfer switching equipment.
• 100A rated operational current.
• 4 pole configuration.
• 400V AC rated operational voltage.
• Designed for 50Hz three-phase four-wire systems.
• CB class automatic transfer switch design.
• Automatic and manual operating capability.
• Integrated digital controller for source monitoring and transfer operation.
• Dual interlock protection for safe source transfer.
• Front connection and fixed mounting installation.

Reliable Automatic Power Transfer for Critical Loads

Automatic transfer switches such as the Chint NZ7-125H/4/100 are used to monitor incoming power sources and transfer connected loads when the preferred supply becomes unavailable. This helps reduce downtime and supports continuous operation of essential electrical systems.

The NZ7 Series is designed with compact motor-driven operation and dual interlock protection, helping provide dependable source transfer while preventing unsafe parallel connection of two supplies. This makes it a practical choice for electrical contractors, panel builders and facilities engineers working on standby power and resilient distribution systems.

Typical Applications

• Automatic mains changeover systems.
• Standby generator transfer panels.
• Commercial building power distribution.
• Industrial control panels and switchboards.
• Healthcare and emergency power systems.
• Data centres, telecoms and critical infrastructure.
• Manufacturing facilities and process environments.