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nm8-800s-3p-800a chint 800a 3p adjustable thermal & magnetic mccb
Chint NM8-800S-3P-800A 800A 3 pole adjustable thermal-magnetic moulded case circuit breaker with 50 kA breaking capacity for industrial power distribution.
£600.04
Why Choose the Chint NM8-800S-3P-800A Moulded Case Circuit Breaker?
The Chint NM8-800S-3P-800A is a high-capacity 3 pole moulded case circuit breaker (MCCB) designed to provide dependable overload and short-circuit protection for demanding industrial power distribution systems. As part of the proven Chint NM8 Series, it features an adjustable thermal-magnetic trip unit, allowing engineers to optimise protection settings for a wide variety of low-voltage applications.
Built for use in large switchboards, industrial control panels and electrical distribution equipment, the NM8-800S combines a robust moulded case with reliable switching and isolation performance. Its high interrupting capacity and durable construction make it well suited to installations where maximum reliability and equipment protection are essential.
With a rated current of 800 A, 3 pole configuration and a 50 kA breaking capacity, the NM8-800S-3P-800A is an excellent solution for protecting large three-phase power distribution systems in commercial and industrial environments.
Key Advantages
- Heavy-duty 3 pole moulded case circuit breaker.
- 800 A rated current for high-capacity electrical distribution.
- Adjustable thermal-magnetic trip unit for flexible protection settings.
- 50 kA short-circuit breaking capacity.
- Suitable for switching, isolation and circuit protection.
- Designed for dependable long-term operation in demanding industrial installations.
Key Features
- Chint NM8 Series MCCB.
- 800 A rated current.
- 3 pole configuration.
- Adjustable thermal-magnetic protection.
- 50 kA rated breaking capacity.
- 690 V AC rated operational voltage.
- Suitable for isolation in accordance with IEC requirements.
- Fixed mounting for industrial switchgear and distribution equipment.
Reliable Circuit Protection for High-Power Installations
The Chint NM8 Series is designed to protect low-voltage electrical systems against overloads and short circuits while providing dependable switching and safe isolation. The adjustable thermal-magnetic release enables engineers to configure protection to suit the electrical characteristics of each installation.
The NM8-800S is ideally suited to manufacturing facilities, utilities, infrastructure projects and large commercial buildings where reliable protection of high-current electrical systems is critical.
Typical Applications
- Main incoming distribution boards.
- Industrial switchgear assemblies.
- Large motor control centres.
- Commercial and industrial electrical installations.
- Manufacturing and processing facilities.
- Power distribution infrastructure.
Technical Specifications
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| Mounting Type | Fixed | |
|---|---|---|
| Application | Power distribution | |
| Current | 800 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 50 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | Chint | |
| Series | NM8 | |
| Model | NM8-800S-3P-800A | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated current | 800 A | |
| Number of poles | 3 | |
| Trip unit | Adjustable thermal-magnetic | |
| Rated operational voltage | Up to 690 V AC | |
| Rated insulation voltage (Ui) | 800 V | |
| Rated impulse withstand voltage (Uimp) | 8 kV | |
| Breaking capacity | 50 kA | |
| Rated frequency | 50 / 60 Hz | |
| Standard | IEC/EN 60947-2 | |
| Mounting type | Fixed | |
| Frame size | NM8-800S |
Frequently Asked Questions
What is the Chint NM8-800S-3P-800A used for?
It provides overload, short-circuit and isolation protection for high-current industrial and commercial electrical distribution systems.
What is the rated current of this MCCB?
This breaker has a rated current of 800 A.
How many poles does this circuit breaker have?
The NM8-800S-3P-800A features a 3 pole configuration for three-phase electrical systems.
Does this breaker feature adjustable protection?
Yes. It incorporates an adjustable thermal-magnetic trip unit that allows protection settings to be tailored to the installation.
Which standards does this MCCB comply with?
The breaker is manufactured in accordance with IEC/EN 60947-2 for low-voltage moulded case circuit breakers.
Trusted by Electrical Professionals Worldwide
Chint NM8 moulded case circuit breakers are widely used by panel builders, OEMs and industrial engineers to provide dependable protection for high-capacity low-voltage power distribution systems.
