Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
nm8-1250s-3p-1000a chint 1000a 3p adjustable thermal mccb
Chint NM8-1250S-3P-1000A 1000A 3 pole adjustable thermal-magnetic moulded case circuit breaker with 50 kA breaking capacity for industrial power distribution.
£809.51
Why Choose the Chint NM8-1250S-3P-1000A Moulded Case Circuit Breaker?
The Chint NM8-1250S-3P-1000A is a heavy-duty 3 pole moulded case circuit breaker (MCCB) engineered to provide dependable overload and short-circuit protection for large industrial and commercial electrical distribution systems. As part of the proven Chint NM8 Series, it features an adjustable thermal-magnetic trip unit, delivering reliable protection and operational flexibility for high-current installations.
Designed for main distribution boards, switchgear assemblies and critical power infrastructure, the NM8-1250S combines robust construction with dependable switching and isolation performance. Its high interrupting capacity and adjustable protection characteristics make it ideal for protecting valuable electrical equipment and maintaining system reliability.
With a 1000 A rated current, 3 pole configuration and a 50 kA breaking capacity, the NM8-1250S-3P-1000A is ideally suited to demanding low-voltage distribution applications requiring safe operation and long service life.
Key Advantages
- Industrial-grade 3 pole moulded case circuit breaker.
- 1000 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.
- 1000 A rated current.
- 3 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 protects low-voltage electrical systems against overloads and short circuits while providing dependable switching and safe isolation. Adjustable thermal-magnetic protection enables engineers to optimise the breaker for the specific requirements of each installation.
The NM8-1250S is ideal for manufacturing plants, utilities, infrastructure projects and large commercial facilities where reliable 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
Tick the specs you need, then view products that match.
| Mounting Type | Fixed | |
|---|---|---|
| Application | Power distribution | |
| Current | 1000 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 50 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | Chint | |
| Series | NM8 | |
| Model | NM8-1250S-3P-1000A | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated current | 1000 A | |
| Number of poles | 3 | |
| 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-3P-1000A 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 1000 A.
How many poles does this circuit breaker have?
The NM8-1250S-3P-1000A features a 3 pole configuration for three-phase electrical systems.
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.
