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nm8s-800s-3p-800a chint 800a 3p electronic adjustable thermal & magnetic mccb
Chint NM8S-800S-3P-800A 800A 3 pole electronic moulded case circuit breaker with adjustable electronic trip unit for industrial and commercial low voltage power distribution.
£669.88
Why Choose the Chint NM8S-800S-3P-800A Electronic MCCB?
The Chint NM8S-800S-3P-800A is a premium electronic moulded case circuit breaker (MCCB) designed to provide reliable overload and short-circuit protection for high-capacity low voltage electrical distribution systems. Featuring an advanced electronic trip unit, it delivers precise protection settings and dependable fault interruption for demanding industrial and commercial installations.
As part of the Chint NM8S Series, this MCCB incorporates an adjustable electronic release, enabling engineers to optimise protection settings for improved selectivity and coordination throughout complex electrical networks. It is ideal for main incomers, feeder circuits, switchboards and critical power distribution systems.
With a 800A rated current, 3-pole configuration and 50kA breaking capacity, the NM8S-800S-3P-800A is well suited to industrial manufacturing plants, commercial buildings, utilities and infrastructure projects requiring dependable high-current protection.
Key Advantages
- 800A rated current for high-capacity electrical distribution.
- 3-pole MCCB for three-phase power systems.
- Adjustable electronic trip unit for accurate protection coordination.
- 50kA breaking capacity for dependable fault interruption.
- Supports improved selectivity across low voltage distribution systems.
- Suitable for industrial, commercial and infrastructure installations.
Key Features
- Chint NM8S Series electronic moulded case circuit breaker.
- 800A rated current.
- 3-pole construction.
- Adjustable electronic protection.
- 50kA rated ultimate breaking capacity.
- Rated operational voltage up to 690V AC.
- Fixed mounting for switchboards and distribution panels.
- Designed to IEC/EN 60947-2 standards.
Reliable Protection for High-Capacity Distribution Systems
The Chint NM8S-800S-3P-800A protects electrical installations by automatically disconnecting circuits during overload and short-circuit conditions. Its adjustable electronic trip unit enables accurate protection settings that help improve discrimination and reduce unnecessary interruptions.
Designed for demanding low voltage applications, this MCCB provides dependable protection for industrial switchgear, commercial distribution systems and critical infrastructure where operational continuity is essential.
Typical Applications
- Main incoming electrical supplies.
- Industrial switchboards.
- Commercial distribution systems.
- Manufacturing facilities.
- Infrastructure and utilities.
- High-capacity feeder circuit protection.
Technical Specifications
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| Trip Unit | LSI | |
|---|---|---|
| Mounting Type | Fixed | |
| Application | Power distribution | |
| Current | 800 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 50 kA | |
| Manufacturer | Chint | |
| Series | NM8S Electronic MCCB | |
| Model | NM8S-800S-3P-800A | |
| Product type | Electronic moulded case circuit breaker | |
| Rated current | 800A | |
| Frame size | 800S | |
| Number of poles | 3 Pole | |
| Trip unit | Adjustable electronic release | |
| Rated operational voltage | Up to 690V AC | |
| Rated insulation voltage | 800V | |
| Rated impulse withstand voltage | 8kV | |
| Breaking capacity | 50kA | |
| Frequency | 50 / 60Hz | |
| Mounting type | Fixed installation | |
| Protection functions | Overload and short-circuit protection | |
| Standard | IEC/EN 60947-2 |
Frequently Asked Questions
What is the Chint NM8S-800S-3P-800A used for?
It provides overload and short-circuit protection for industrial and commercial low voltage electrical distribution systems.
What is the rated current of this MCCB?
The NM8S-800S-3P-800A has a 800A rated current.
What type of trip unit does this breaker use?
It uses an adjustable electronic trip unit that enables accurate protection settings and improved coordination across electrical systems.
What is the breaking capacity?
This breaker provides a 50kA rated ultimate short-circuit breaking capacity, making it suitable for demanding industrial power distribution applications.
Where is this MCCB typically installed?
It is commonly installed in industrial switchboards, commercial distribution boards, infrastructure projects and high-capacity feeder circuits.
Trusted by Electrical Professionals Worldwide
Chint NM8S electronic MCCBs are trusted by electrical engineers, contractors and panel builders for dependable high-current protection, adjustable electronic trip settings and reliable long-term performance in demanding low voltage electrical systems.
