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NM8-250S-4P-160A Chint 160A 4P Adjustable Thermal & Magnetic MCCB
Chint NM8-250S-4P-160A 160A 4 pole adjustable thermal-magnetic moulded case circuit breaker with 50 kA breaking capacity for industrial power distribution.
Why Choose the Chint NM8-250S-4P-160A Moulded Case Circuit Breaker?
The Chint NM8-250S-4P-160A is a high-performance 4 pole moulded case circuit breaker (MCCB) designed to provide dependable overload and short-circuit protection for commercial, industrial and power distribution systems. As part of the trusted Chint NM8 Series, it delivers reliable circuit protection while ensuring safe isolation and long-term operational performance.
Featuring an adjustable thermal-magnetic trip unit, the NM8-250S allows engineers to fine tune protection settings to suit individual applications. Its robust construction, compact footprint and high interrupting capacity make it ideal for protecting distribution boards, machinery, switchgear and industrial electrical installations.
With a 160 A rated current, 4 pole configuration and a 50 kA breaking capacity, the NM8-250S-4P-160A is suitable for demanding low-voltage installations requiring reliable protection, excellent durability and compliance with international standards.
Key Advantages
- High-performance 4 pole MCCB for industrial power distribution.
- 160 A rated current for medium to heavy-duty electrical systems.
- Adjustable thermal and magnetic protection for flexible system design.
- 50 kA short-circuit breaking capacity for enhanced equipment protection.
- Suitable for isolation and distribution applications.
- Designed for reliable long-term operation in demanding environments.
Key Features
- Chint NM8 Series MCCB.
- 160 A rated current.
- 4 pole configuration.
- Thermal-magnetic adjustable trip unit.
- 50 kA rated breaking capacity.
- Rated operational voltage up to 690 V AC.
- Suitable for isolation in accordance with IEC requirements.
- Fixed mounting design for switchboards and distribution panels.
Reliable Circuit Protection for Industrial Installations
The Chint NM8 Series has been developed to protect low-voltage electrical installations against overloads and short circuits while providing dependable switching and isolation. Adjustable protection settings allow engineers to optimise system protection and minimise unnecessary downtime.
Suitable for commercial buildings, manufacturing plants, utilities and industrial control systems, the NM8-250S delivers dependable performance where electrical reliability and equipment protection are essential.
Typical Applications
- Main incoming distribution boards.
- Industrial switchgear assemblies.
- Motor control centres.
- Commercial electrical installations.
- Machinery and automation systems.
- Power distribution and infrastructure projects.
Technical Specifications
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| Mounting Type | Fixed | |
|---|---|---|
| Application | Power distribution | |
| Current | 160 A | |
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 50 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | Chint | |
| Series | NM8 | |
| Model | NM8-250S-4P-160A | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated current | 160 A | |
| Number of poles | 4 | |
| 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 | |
| Standard | IEC/EN 60947-2 | |
| Mounting type | Fixed | |
| Frame size | NM8-250S |
Frequently Asked Questions
What is the Chint NM8-250S-4P-160A used for?
It protects electrical circuits from overload and short-circuit faults while providing safe isolation in industrial and commercial power distribution systems.
What is the rated current of this MCCB?
The breaker has a rated current of 160 A.
How many poles does this circuit breaker have?
This model features a 4 pole configuration for three-phase systems with neutral protection.
Does this MCCB have adjustable protection?
Yes. It incorporates an adjustable thermal-magnetic trip unit, allowing protection settings to be matched to the application.
Which standards does the NM8-250S comply with?
The breaker is manufactured in accordance with IEC/EN 60947-2 for low-voltage circuit breakers.
Trusted by Electrical Professionals Worldwide
Chint NM8 moulded case circuit breakers are widely used by electrical contractors, panel builders and industrial engineers to provide dependable protection for low-voltage power distribution systems.
