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nh18-250/250/4 chint 250a 4 pole mccb type isolator
Chint NH18-250/250/4 250A 4 Pole MCCB type isolator designed for safe manual isolation of low voltage electrical circuits in industrial and commercial power distribution systems.
£152.95
Why Choose the Chint NH18-250/250/4 MCCB Type Isolator?
The Chint NH18-250/250/4 is a high-performance 250A four-pole MCCB type isolator switch designed to provide safe manual isolation of low voltage electrical circuits. Manufactured by Chint, this robust switch disconnector is engineered for dependable operation in commercial, industrial and power distribution applications where reliable isolation is essential for maintenance and operational safety.
Designed in accordance with IEC/EN 60947-3, the NH18 series delivers excellent switching performance, long mechanical life and dependable isolation under load. Its MCCB-style construction provides a familiar operating mechanism while offering straightforward installation within switchboards, distribution panels and industrial control equipment.
With a 250A rated current and 4-pole configuration, the NH18-250/250/4 is ideal for isolating three-phase systems with neutral, making it suitable for manufacturing facilities, infrastructure, machinery, commercial buildings and electrical distribution systems requiring secure circuit isolation.
Key Advantages
- 250A rated current for demanding industrial applications.
- Four-pole design provides complete isolation of three phases and neutral.
- Manufactured in accordance with IEC/EN 60947-3.
- Robust MCCB style operating mechanism.
- Reliable manual isolation for maintenance and safety procedures.
- Suitable for distribution boards, switchboards and industrial control panels.
Key Features
- Chint NH18 Series MCCB Type Isolator.
- 250A rated operational current.
- 4 Pole switching.
- Suitable for low voltage AC power distribution.
- Heavy-duty mechanical operating handle.
- Panel mounted installation.
- Designed for safe load isolation.
- Long service life with dependable switching performance.
Reliable Electrical Isolation for Industrial Installations
The Chint NH18 series provides dependable manual isolation of electrical circuits, allowing engineers and maintenance personnel to safely disconnect equipment before servicing. Its robust design helps improve operational safety while delivering reliable performance throughout the life of the installation.
Designed for use in industrial switchboards, distribution equipment and control panels, the NH18-250/250/4 combines durability with straightforward installation, making it a practical solution for modern low voltage electrical systems.
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 | NH18-250/250/4 | |
| Product type | MCCB Type Isolator Switch | |
| Rated current | 250A | |
| Number of poles | 4 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 systems with neutral |
Frequently Asked Questions
What is the Chint NH18-250/250/4 used for?
It is used to manually isolate electrical circuits, allowing equipment to be safely disconnected for maintenance and servicing.
What current rating does this isolator provide?
The NH18-250/250/4 has a rated operational current of 250A.
Why does this model have four poles?
The four-pole configuration isolates all three phases together with the neutral conductor for complete circuit isolation.
Where is this isolator typically installed?
It is commonly installed in switchboards, distribution panels, motor control centres and industrial electrical control systems.
Does the NH18 series comply with recognised standards?
Yes. The NH18 series is designed in accordance with IEC/EN 60947-3 for switch disconnectors.
Trusted by Electrical Professionals Worldwide
Chint NH18 isolator switches are trusted by electrical contractors, panel builders and industrial engineers for dependable circuit isolation, durable construction and reliable long-term performance in low voltage power distribution systems.
