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nm8-250s-3p-250a chint 250a 3p adjustable thermal & magnetic mccb
Chint NM8-250S-3P-250A 250A 3 pole adjustable thermal magnetic moulded case circuit breaker with 50kA breaking capacity for industrial and commercial power distribution.
Why Choose the Chint NM8-250S-3P-250A Moulded Case Circuit Breaker?
The Chint NM8-250S-3P-250A is a heavy-duty 3 pole moulded case circuit breaker (MCCB) designed to provide reliable overload and short circuit protection for low voltage power distribution systems. As part of the proven Chint NM8 Series, this adjustable thermal magnetic MCCB is engineered for industrial, commercial and OEM applications where dependable circuit protection is essential.
Featuring an adjustable thermal magnetic trip unit, the NM8-250S-3P-250A allows protection settings to be tailored to suit the connected installation. Manufactured in accordance with IEC 60947-2, it combines robust construction with dependable performance, making it suitable for demanding electrical environments.
With a 250A rated current, 3 pole configuration and a 50kA breaking capacity, this MCCB is ideal for switchboards, motor control centres, distribution boards and industrial machinery requiring reliable three phase circuit protection.
Key Advantages
- 250A moulded case circuit breaker for industrial power distribution.
- 3 pole configuration for three phase electrical systems.
- 50kA breaking capacity for high fault level applications.
- Adjustable thermal magnetic trip unit for flexible protection settings.
- Reliable overload and short circuit protection.
- Designed for switchboards, machinery and motor control applications.
Key Features
- Chint NM8 Series moulded case circuit breaker.
- Model: NM8-250S-3P-250A.
- Rated current: 250A.
- 3 pole MCCB construction.
- Adjustable thermal magnetic protection.
- 50kA short circuit breaking capacity.
- Fixed mounting for switchboards and distribution panels.
- Designed for overload and short circuit protection.
Reliable MCCB Protection for Three Phase Systems
Moulded case circuit breakers such as the Chint NM8-250S-3P-250A are designed to protect low voltage circuits and equipment from damaging overload and short circuit faults. Fast and dependable fault interruption helps improve electrical safety, reduce downtime and protect valuable equipment.
The adjustable thermal magnetic mechanism allows engineers to coordinate protection with downstream devices and connected loads. This makes the NM8-250S-3P-250A an excellent choice for panel builders, contractors and industrial engineers working with demanding three phase power distribution systems.
Typical Applications
- Three phase industrial control panels.
- Electrical distribution boards.
- Commercial electrical installations.
- Motor control centres.
- OEM machinery and equipment protection.
- Switchboards and low voltage power distribution systems.
Technical Specifications
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| Mounting Type | Fixed | |
|---|---|---|
| Application | Power distribution | |
| Current | 250 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 50 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | Chint | |
| Series | NM8 | |
| Model | NM8-250S-3P-250A | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated current | 250A | |
| Number of poles | 3 | |
| Trip unit | Adjustable thermal magnetic | |
| Breaking capacity | 50kA | |
| Rated operational voltage | 415V AC | |
| Rated insulation voltage | 800V | |
| Frequency | 50 / 60Hz | |
| Protection type | Overload and short circuit protection | |
| Mounting type | Fixed panel mounting | |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the Chint NM8-250S-3P-250A used for?
It provides overload and short circuit protection for three phase low voltage electrical circuits in industrial and commercial installations.
What is the rated current of this MCCB?
The Chint NM8-250S-3P-250A has a 250A rated current.
How many poles does this circuit breaker have?
This model has a 3 pole configuration, making it suitable for protecting three phase electrical systems.
Is the trip unit adjustable?
Yes. The MCCB features an adjustable thermal magnetic trip unit that allows protection settings to be matched to the installation.
Where is this MCCB typically installed?
It is commonly installed in switchboards, distribution boards, motor control centres, control panels and industrial machinery.
Trusted by Electrical Professionals
Chint NM8 moulded case circuit breakers are trusted by electrical engineers, contractors and panel builders for reliable overload and short circuit protection across demanding low voltage power distribution systems.
