Chint NZ7-125H/4/100 automatic transfer switch, a 100A 4 pole ATS designed for automatic power source changeover in industrial, commercial and standby generator applications.
£1,750.76
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.
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.
| Current | 100 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | Chint |
| Series | NZ7 Automatic Transfer Switching Equipment |
| Model | NZ7-125H/4/100 |
| Product type | Automatic Transfer Switch (ATS) |
| Rated operational current | 100A |
| Frame size | 125AF |
| Number of poles | 4 pole |
| Rated operational voltage | 400V AC |
| Frequency | 50Hz |
| Network type | Three-phase four-wire |
| Electrical equipment grade | CB class |
| Usage category | AC-33B |
| Control supply voltage | 230V AC 50Hz |
| Protection level | IP30, excluding main circuit terminals |
| Installation type | Fixed mounting |
| Connection type | Front connection |
| Standard | IEC/EN 60947-6-1 |
The Chint NZ7-125H/4/100 is used to automatically transfer electrical loads between two power sources, helping maintain supply continuity during mains failure or source interruption.
This model has a rated operational current of 100A.
Yes. The NZ7-125H/4/100 is a 4 pole automatic transfer switch, making it suitable for three-phase four-wire systems where neutral switching is required.
Yes. The Chint NZ7 Series can be used in mains-to-generator changeover applications when installed and configured correctly within the electrical system.
The NZ7 Series is designed in accordance with IEC/EN 60947-6-1 for automatic transfer switching equipment.
Chint NZ7 automatic transfer switches are widely used by electrical contractors, panel builders and facilities engineers to deliver dependable power transfer, standby supply resilience and safe electrical distribution in commercial and industrial installations.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...