Chint NZ7-250H/4/160 160A 4 pole automatic transfer switch for automatic changeover between two power supplies in industrial and commercial applications.
£1,769.42
The Chint NZ7-250H/4/160 is a robust 4 pole automatic transfer switch (ATS) engineered to provide dependable automatic changeover between two independent power supplies. It continuously monitors both incoming sources and automatically transfers connected loads to the standby supply whenever the preferred source becomes unavailable, helping minimise downtime in critical electrical installations.
As part of the Chint NZ7 Series Automatic Transfer Switching Equipment, this model incorporates intelligent digital control, reliable mechanical and electrical interlocking, and a compact motor-driven operating mechanism. The result is dependable automatic source transfer with straightforward installation and long service life in demanding industrial and commercial environments.
Featuring a 160A rated operational current, 4 pole switching and suitability for 400V AC three-phase four-wire systems, the NZ7-250H/4/160 is an ideal solution for standby generator systems, commercial facilities, manufacturing plants, healthcare environments and other applications where continuous power is essential.
The Chint NZ7 Series continuously monitors the condition of both incoming power supplies and automatically transfers connected loads whenever the preferred supply experiences voltage loss, phase failure or other predefined faults. This helps ensure essential equipment continues operating with minimal interruption.
Its intelligent controller provides configurable transfer delays, generator control functions and comprehensive system monitoring, while dual mechanical and electrical interlocking enhances operational safety by preventing both power sources from being connected simultaneously.
| Current | 160 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | Chint |
| Series | NZ7 Automatic Transfer Switching Equipment |
| Model | NZ7-250H/4/160 |
| Product type | Automatic Transfer Switch (ATS) |
| Frame size | 250AF |
| Rated operational current | 160A |
| Number of poles | 4 |
| Rated operational voltage | 400V AC |
| Nominal insulation voltage | 500V AC |
| Rated impulse withstand voltage | 8kV |
| Frequency | 50Hz |
| Usage category | AC-33B |
| Protection rating | IP30 (excluding main terminals) |
| Control supply voltage | 230V AC |
| Installation type | Fixed mounting |
| Connection type | Front connection |
| Operating transfer time | ≤3.6 seconds |
| Standard | IEC/EN 60947-6-1 |
It automatically transfers electrical loads between two independent power supplies, ensuring continuity of power during mains failure or other supply interruptions.
The NZ7-250H/4/160 has a rated operational current of 160A.
The four pole configuration switches all live conductors together with the neutral, making it suitable for three-phase four-wire installations requiring complete source isolation.
Yes. The NZ7 Series supports both mains-to-mains and mains-to-generator automatic transfer applications when correctly installed and configured.
The Chint NZ7 Series is manufactured in accordance with IEC/EN 60947-6-1 for automatic transfer switching equipment.
Chint NZ7 automatic transfer switches are trusted by electrical engineers, panel builders and facility managers to provide dependable automatic power transfer and maintain continuous operation of critical electrical systems.
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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...