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nm8s-630s-3p-630a chint 630a 3p electronic adjustable thermal & magnetic mccb
Chint NM8S-630S-3P-630A 630A 3 pole electronic moulded case circuit breaker with adjustable electronic trip unit for industrial and commercial low voltage power distribution.
Why Choose the Chint NM8S-630S-3P-630A Electronic MCCB?
The Chint NM8S-630S-3P-630A is a high-performance electronic moulded case circuit breaker (MCCB) designed to provide reliable overload and short-circuit protection for low voltage power distribution systems. Built for industrial and commercial installations, it offers dependable circuit protection with adjustable electronic settings for improved flexibility and coordination.
As part of the Chint NM8S Series, this MCCB features an adjustable electronic trip unit, allowing protection settings to be adapted to suit different electrical applications. This makes it suitable for switchboards, distribution panels, feeder circuits and high-load equipment supplies where accurate protection and operational reliability are essential.
With a 630A rated current, 3-pole configuration and 50kA breaking capacity, the NM8S-630S-3P-630A is ideal for three-phase power distribution in manufacturing sites, commercial buildings, infrastructure projects and industrial control environments.
Key Advantages
- 630A rated current for high-capacity power distribution.
- 3-pole MCCB suitable for three-phase electrical systems.
- Adjustable electronic trip unit for accurate protection settings.
- 50kA breaking capacity for dependable short-circuit protection.
- Supports improved selectivity across low voltage distribution networks.
- Suitable for industrial, commercial and infrastructure electrical systems.
Key Features
- Chint NM8S Series electronic moulded case circuit breaker.
- 630A rated current.
- 3-pole construction.
- Adjustable electronic protection.
- 50kA rated breaking capacity.
- Rated operational voltage up to 690V AC.
- Fixed mounting design for switchboards and panels.
- Manufactured in accordance with IEC/EN 60947-2.
Reliable Protection for Three-Phase Power Distribution
The Chint NM8S-630S-3P-630A helps protect electrical installations by disconnecting circuits during overload and short-circuit fault conditions. Its adjustable electronic release allows engineers to fine tune protection settings, helping improve coordination and reduce unnecessary disruption within power distribution systems.
Its robust MCCB construction and high breaking capacity make it suitable for main distribution boards, feeder circuits and industrial switchboards where dependable electrical protection and safe isolation are required.
Typical Applications
- Industrial switchboards and distribution panels.
- Commercial building electrical systems.
- Three-phase feeder circuit protection.
- Manufacturing and process facilities.
- Machinery supplies and control panels.
- Infrastructure and utilities installations.
Technical Specifications
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| Trip Unit | LSI | |
|---|---|---|
| Mounting Type | Fixed | |
| Application | Power distribution | |
| Current | 630 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 50 kA | |
| Manufacturer | Chint | |
| Series | NM8S Electronic MCCB | |
| Model | NM8S-630S-3P-630A | |
| Product type | Electronic moulded case circuit breaker | |
| Rated current | 630A | |
| Frame size | 630S | |
| 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-630S-3P-630A used for?
It is used to provide overload and short-circuit protection for three-phase industrial and commercial low voltage power distribution systems.
What is the rated current of this MCCB?
The NM8S-630S-3P-630A has a 630A rated current.
How many poles does this breaker have?
This model has a 3-pole configuration, making it suitable for three-phase electrical distribution systems.
What type of trip unit does this MCCB use?
It uses an adjustable electronic trip unit, allowing protection settings to be configured for improved system coordination.
Where is this breaker typically installed?
It is commonly installed in industrial switchboards, commercial distribution panels, feeder circuits and machinery control systems.
Trusted by Electrical Professionals Worldwide
Chint NM8S electronic MCCBs are trusted by panel builders, contractors and electrical engineers for reliable high-current protection, adjustable electronic trip settings and dependable performance in demanding low voltage installations.
