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nm8-250s-4p-125a chint 125a 4p adjustable thermal & magnetic mccb
Chint NM8-250S-4P-125A 125A 4 pole adjustable thermal magnetic moulded case circuit breaker with 50kA breaking capacity for industrial and commercial circuit protection.
Why Choose the Chint NM8-250S-4P-125A Moulded Case Circuit Breaker?
The Chint NM8-250S-4P-125A is a dependable 4 pole moulded case circuit breaker (MCCB) designed to provide reliable overload and short circuit protection for low voltage electrical distribution systems. As part of the Chint NM8 Series, this thermal magnetic MCCB is suitable for industrial, commercial and OEM applications where robust circuit protection is required.
Featuring an adjustable thermal magnetic trip unit, the NM8-250S-4P-125A allows protection settings to be matched to the connected load and installation requirements. Its durable construction, fixed mounting design and compliance with IEC 60947-2 make it suitable for demanding switchboard, control panel and machinery applications.
With a 125A rated current, 4 pole configuration and 50kA breaking capacity, this MCCB is ideal for three phase plus neutral circuit protection in low voltage power distribution systems, motor control centres, machinery panels and industrial electrical installations.
Key Advantages
- 125A moulded case circuit breaker for industrial and commercial power distribution.
- 4 pole configuration for three phase plus neutral circuit protection.
- 50kA breaking capacity for high fault level applications.
- Adjustable thermal magnetic trip unit for flexible protection settings.
- Provides reliable overload and short circuit protection.
- Suitable for switchboards, machinery panels and motor control centres.
Key Features
- Chint NM8 Series moulded case circuit breaker.
- Model: NM8-250S-4P-125A.
- Rated current: 125A.
- 4 pole MCCB construction.
- Adjustable thermal magnetic protection.
- 50kA short circuit breaking capacity.
- Fixed mounting for panel installation.
- Designed for overload and short circuit protection.
Reliable MCCB Protection for Four Pole Systems
Moulded case circuit breakers such as the Chint NM8-250S-4P-125A are used to protect low voltage circuits and connected equipment from damaging overload and short circuit faults. By interrupting fault currents quickly and reliably, this MCCB supports safer operation and helps reduce the risk of equipment damage.
The adjustable thermal magnetic mechanism supports practical coordination with connected loads and downstream protective devices. This makes the NM8-250S-4P-125A a strong choice for panel builders, contractors and engineers working with industrial and commercial power distribution systems requiring 4 pole protection.
Typical Applications
- Three phase plus neutral 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 | 125 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-125A | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated current | 125A | |
| Number of poles | 4 | |
| 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-4P-125A used for?
It is used to provide overload and short circuit protection for low voltage circuits in industrial and commercial installations, particularly where 4 pole protection is required.
What is the rated current of this MCCB?
The Chint NM8-250S-4P-125A has a 125A rated current.
How many poles does this circuit breaker have?
This model has a 4 pole configuration, making it suitable for three phase plus neutral circuit protection applications.
Is the trip unit adjustable?
Yes. This MCCB uses an adjustable thermal magnetic trip unit to help match protection settings to the connected load.
Where is this MCCB typically installed?
It is commonly installed in switchboards, distribution boards, motor control centres, machinery panels and industrial control cabinets.
Trusted by Panel Builders and Electrical Engineers
Chint NM8 moulded case circuit breakers are widely used by panel builders, contractors and industrial engineers for dependable overload and short circuit protection in low voltage distribution systems.
