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nh18-400/250/3 chint 250a 3 pole mccb type isolator
Chint NH18-400/250/3 250A 3 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 NH18-400/250/3 MCCB Type Isolator?
The Chint NH18-400/250/3 is a robust 250A three-pole MCCB type isolator switch designed to provide safe and reliable manual isolation of low voltage electrical circuits. As part of the trusted Chint NH18 isolator series, it is manufactured for industrial and commercial power distribution systems where dependable isolation is essential for maintenance, servicing and operational safety.
Built in accordance with IEC/EN 60947-3, the NH18 series delivers excellent switching performance, high mechanical durability and dependable long-term reliability. Its MCCB style design offers straightforward installation within switchboards, motor control centres and electrical distribution panels while providing a familiar operating mechanism for electrical professionals.
With a 250A rated current and three-pole configuration, the NH18-400/250/3 is ideally suited for isolating three-phase electrical supplies across manufacturing facilities, infrastructure projects, commercial buildings and industrial automation systems.
Key Advantages
- 250A rated current for demanding industrial applications.
- Three-pole switching for reliable isolation of three-phase supplies.
- Designed in accordance with IEC/EN 60947-3.
- Heavy-duty MCCB style operating mechanism.
- Provides safe manual circuit isolation during maintenance.
- Suitable for switchboards, distribution panels and control equipment.
Key Features
- Chint NH18 Series MCCB Type Isolator.
- 250A rated operational current.
- 3 Pole switching configuration.
- Designed for low voltage AC power distribution.
- Robust manual operating handle.
- Panel mounted installation.
- Reliable isolation for electrical maintenance.
- Durable construction for long service life.
Reliable Electrical Isolation for Industrial Installations
The Chint NH18 series is engineered to safely disconnect electrical circuits before maintenance or servicing work is carried out. By providing secure manual isolation, the switch helps protect personnel while supporting the safe operation of electrical installations.
Its durable construction and reliable switching performance make the NH18-400/250/3 an ideal choice for industrial switchgear, distribution systems and machinery installations where dependable isolation is required.
Typical Applications
- Main incoming isolators.
- Industrial switchboards.
- Commercial distribution panels.
- Motor control centres.
- Manufacturing facilities.
- Industrial automation systems.
Technical Specifications
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| Mounting Type | Fixed | |
|---|---|---|
| Device Type | Switch Disconnector | |
| Current | 250 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Manufacturer | Chint | |
| Series | NH18 | |
| Model | NH18-400/250/3 | |
| Product type | MCCB Type Isolator Switch | |
| Rated current | 250A | |
| Number of poles | 3 Pole | |
| Standard | IEC/EN 60947-3 | |
| Function | Manual circuit isolation | |
| Mounting | Panel mounting | |
| Application | Low voltage power distribution | |
| Operating mechanism | MCCB style handle | |
| Suitable for | Three-phase electrical systems |
Frequently Asked Questions
What is the Chint NH18-400/250/3 used for?
It is used to safely isolate three-phase electrical circuits during maintenance, servicing and repair work.
What current rating does this isolator have?
The NH18-400/250/3 has a rated operational current of 250A.
How many poles does this model have?
This version features a three-pole configuration for isolating three-phase electrical supplies.
Where is this isolator typically installed?
It is commonly installed in switchboards, electrical distribution panels, motor control centres and industrial control systems.
Which standard does the NH18 series comply with?
The NH18 series is designed in accordance with IEC/EN 60947-3 for switch disconnectors.
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 across low voltage power distribution systems.
