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nm8-1250s-4p-1250a chint 1250a 4p adjustable thermal mccb
Chint NM8-1250S-4P-1250A 1250A 4 pole adjustable thermal-magnetic moulded case circuit breaker with 50 kA breaking capacity for industrial power distribution.
£1,224.91
Why Choose the Chint NM8-1250S-4P-1250A Moulded Case Circuit Breaker?
The Chint NM8-1250S-4P-1250A is a heavy-duty 4 pole moulded case circuit breaker (MCCB) engineered to provide dependable overload and short-circuit protection for the largest industrial and commercial power distribution systems. As part of the proven Chint NM8 Series, it features an adjustable thermal-magnetic trip unit, delivering flexible protection for demanding low-voltage applications.
Designed for main switchboards, distribution panels and critical electrical infrastructure, the NM8-1250S combines durable construction with reliable switching and isolation performance. Its high current rating, strong fault interruption capability and adjustable protection characteristics help maximise equipment safety and system reliability.
With a 1250 A rated current, 4 pole configuration and a 50 kA breaking capacity, the NM8-1250S-4P-1250A is ideally suited to protecting high-capacity three-phase electrical systems operating at up to 690 V AC.
Key Advantages
- Heavy-duty 4 pole moulded case circuit breaker.
- 1250 A rated current for high-capacity power distribution.
- Adjustable thermal-magnetic trip unit for flexible protection settings.
- 50 kA short-circuit breaking capacity for dependable fault interruption.
- Suitable for switching, isolation and circuit protection.
- Designed for reliable long-term operation in demanding industrial environments.
Key Features
- Chint NM8 Series MCCB.
- 1250 A rated current.
- 4 pole configuration.
- Adjustable thermal-magnetic trip unit.
- 50 kA rated breaking capacity.
- 690 V AC rated operational voltage.
- Suitable for isolation in accordance with IEC requirements.
- Fixed mounting for industrial switchgear and power distribution equipment.
Reliable Circuit Protection for High-Power Installations
The Chint NM8 Series is designed to protect low-voltage electrical systems against overloads and short circuits while providing dependable switching and safe isolation. Adjustable thermal-magnetic protection enables engineers to configure the breaker to suit the electrical characteristics of each installation.
The NM8-1250S is ideal for manufacturing plants, utilities, infrastructure projects and large commercial facilities where dependable protection of high-current electrical systems is essential for operational continuity.
Typical Applications
- Main incoming distribution boards.
- Industrial switchgear assemblies.
- Large motor control centres.
- Commercial and industrial electrical installations.
- Manufacturing and processing facilities.
- Power distribution infrastructure.
Technical Specifications
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| Mounting Type | Fixed | |
|---|---|---|
| Application | Power distribution | |
| Current | 1250 A | |
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 50 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | Chint | |
| Series | NM8 | |
| Model | NM8-1250S-4P-1250A | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated current | 1250 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 | |
| Rated frequency | 50 / 60 Hz | |
| Standard | IEC/EN 60947-2 | |
| Mounting type | Fixed | |
| Frame size | NM8-1250S |
Frequently Asked Questions
What is the Chint NM8-1250S-4P-1250A used for?
It provides overload, short-circuit and isolation protection for high-current industrial and commercial electrical distribution systems.
What is the rated current of this MCCB?
This breaker has a rated current of 1250 A.
How many poles does this circuit breaker have?
The NM8-1250S-4P-1250A features a 4 pole configuration, making it suitable for three-phase systems requiring neutral isolation.
Does this breaker feature adjustable protection?
Yes. It incorporates an adjustable thermal-magnetic trip unit that allows protection settings to be tailored to the installation.
Which standards does this MCCB comply with?
The breaker is manufactured in accordance with IEC/EN 60947-2.
Trusted by Electrical Professionals Worldwide
Chint NM8 moulded case circuit breakers are trusted by panel builders, OEMs and industrial engineers for dependable protection of high-capacity low-voltage power distribution systems.
