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nh18-400/250/4 chint 250a 4 pole mccb type isolator
Chint NH18-400/250/4 250A 4 Pole MCCB type isolator designed for safe manual isolation of low voltage electrical circuits in commercial and industrial power distribution systems.
Why Choose the Chint NH18-400/250/4 MCCB Type Isolator?
The Chint NH18-400/250/4 is a robust 250A four-pole MCCB type isolator switch designed to provide safe and reliable manual isolation of low voltage electrical circuits. As part of the dependable Chint NH18 isolator series, it is manufactured for industrial and commercial power distribution systems where secure disconnection is essential for maintenance, inspection and operational safety.
Built for use in demanding electrical installations, the NH18 series provides reliable switching performance and durable mechanical operation. Its MCCB style construction gives panel builders and electrical contractors a familiar format for installation within switchboards, distribution panels, motor control centres and industrial control equipment.
With a 250A rated current and four-pole configuration, the NH18-400/250/4 is suitable for isolating three-phase supplies with neutral. This makes it a practical choice for commercial buildings, manufacturing facilities, infrastructure installations and electrical distribution systems requiring complete circuit isolation.
Key Advantages
- 250A rated current for industrial and commercial installations.
- Four-pole switching for isolating three phases and neutral.
- Robust MCCB type isolator construction.
- Provides safe manual circuit isolation during maintenance.
- Suitable for switchboards, control panels and distribution equipment.
- Manufactured by Chint for dependable low voltage power distribution.
Key Features
- Chint NH18 Series MCCB Type Isolator.
- 250A rated operational current.
- 4 Pole switching configuration.
- Designed for low voltage AC power distribution.
- Manual operating mechanism for safe circuit disconnection.
- Panel mounted installation.
- Suitable for three-phase systems with neutral.
- Durable construction for long service life.
Reliable Electrical Isolation for Industrial Installations
The Chint NH18 series is designed to safely disconnect electrical circuits before maintenance, servicing or inspection work is carried out. By providing secure manual isolation, the NH18-400/250/4 helps support safe working practices across commercial and industrial electrical installations.
Its strong mechanical design and reliable switching performance make it suitable for use in power distribution systems, machinery panels and switchgear assemblies where dependable isolation is required.
Typical Applications
- Main incoming isolators.
- Industrial switchboards.
- Power distribution panels.
- Motor control centres.
- Commercial electrical installations.
- Manufacturing and processing facilities.
Technical Specifications
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| Mounting Type | Fixed | |
|---|---|---|
| Device Type | Switch Disconnector | |
| Current | 250 A | |
| Phase | Three Phase | |
| Poles | 4-pole | |
| Manufacturer | Chint | |
| Series | NH18 | |
| Model | NH18-400/250/4 | |
| Product type | MCCB Type Isolator Switch | |
| Rated current | 250A | |
| Number of poles | 4 Pole | |
| Function | Manual circuit isolation | |
| Mounting | Panel mounting | |
| Application | Low voltage power distribution | |
| Operating mechanism | MCCB style handle | |
| Suitable for | Three-phase systems with neutral | |
| Typical installation | Switchboards and electrical distribution panels |
Frequently Asked Questions
What is the Chint NH18-400/250/4 used for?
It is used to manually isolate low voltage electrical circuits, allowing equipment to be safely disconnected for maintenance, servicing or inspection.
What current rating does this isolator have?
The NH18-400/250/4 has a rated operational current of 250A.
How many poles does this model have?
This model has a four-pole configuration, allowing isolation of three phases and neutral.
Where is this isolator typically installed?
It is commonly installed in electrical switchboards, distribution panels, motor control centres and industrial control systems.
Is this isolator suitable for three-phase systems?
Yes. The four-pole design makes it suitable for three-phase electrical systems where the neutral also needs to be isolated.
Trusted by Electrical Professionals Worldwide
Chint NH18 MCCB type isolators are trusted by electrical contractors, panel builders and industrial engineers for dependable circuit isolation, robust construction and reliable long-term performance in low voltage power distribution systems.
