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.
nm8-125s-3p-100a chint 100a 3p adjustable thermal mccb
Chint NM8-125S-3P-100A moulded case circuit breaker with 100A rated current, 3-pole configuration, thermal magnetic protection and 50kA breaking capacity for low-voltage electrical distribution.
£106.57
Why Choose the Chint NM8-125S-3P-100A MCCB?
The Chint NM8-125S-3P-100A is a robust moulded case circuit breaker (MCCB) designed to provide dependable overload and short circuit protection for low-voltage electrical distribution systems. As part of the Chint NM8 series, it offers reliable circuit protection for commercial, industrial and panel-building applications where safety, continuity and compact installation are essential.
This MCCB features thermal magnetic protection, combining thermal overload protection with magnetic short circuit protection. The NM8 range is engineered for flexible low-voltage distribution use, helping protect cables, switchgear and connected equipment from damaging fault conditions.
With a 100 A rated current, 3-pole configuration and 50 kA breaking capacity, the NM8-125S-3P-100A is suitable for three-phase distribution boards, machinery supplies, motor control panels and commercial electrical installations requiring dependable MCCB protection.
Key Advantages
- Reliable moulded case circuit breaker for low-voltage protection.
- 100 A rated current suitable for commercial and industrial circuits.
- 3-pole configuration for three-phase electrical distribution systems.
- 50 kA short circuit breaking capacity for dependable fault protection.
- Thermal magnetic trip unit for overload and short circuit protection.
- Compact frame design for panel and switchboard installation.
- Suitable for contractors, panel builders and maintenance engineers.
Key Features
- Chint NM8 series MCCB.
- 100 A rated current.
- 3-pole design.
- 50 kA breaking capacity.
- Thermal magnetic protection.
- Provides overload and short circuit protection.
- Suitable for AC low-voltage power distribution systems.
- Compact frame design for electrical panels and switchboards.
Reliable MCCB Protection for Electrical Distribution
Moulded case circuit breakers such as the Chint NM8-125S-3P-100A protect electrical circuits by disconnecting the supply during overload or short circuit conditions. This helps reduce the risk of damage to cables, switchgear and connected equipment, supporting safer operation across low-voltage installations.
The NM8 range is widely used in electrical distribution panels, control systems and machinery applications where reliable protection, high breaking capacity and straightforward installation are required.
Typical Applications
- Three-phase electrical distribution panels.
- Industrial control panels and switchboards.
- Motor control and machinery circuits.
- Commercial building services.
- Manufacturing and process equipment.
- Panel building and electrical maintenance projects.
Technical Specifications
Tick the specs you need, then view products that match.
| Mounting Type | Fixed | |
|---|---|---|
| Application | Power distribution | |
| Current | 100 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 50 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | Chint | |
| Series | NM8 | |
| Model | NM8-125S-3P-100A | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated current | 100 A | |
| Number of poles | 3 Pole | |
| Trip unit | Thermal magnetic | |
| Breaking capacity | 50 kA | |
| Rated operational voltage | Up to 690 V AC | |
| Rated insulation voltage | 800 V | |
| Rated impulse withstand voltage | 8 kV | |
| Frequency | 50 / 60 Hz | |
| Protection functions | Overload and short circuit protection | |
| Mounting type | Panel / switchboard mounting | |
| Standard | IEC/EN 60947-2 |
Frequently Asked Questions
What is the Chint NM8-125S-3P-100A used for?
It is used to protect three-phase low-voltage electrical circuits against overloads and short circuits in commercial, industrial and machinery applications.
What is the rated current of this MCCB?
The NM8-125S-3P-100A has a 100 A rated current.
How many poles does this breaker have?
This model has a 3-pole configuration, making it suitable for three-phase electrical circuits.
What breaking capacity does this MCCB provide?
The Chint NM8-125S-3P-100A provides a 50 kA short circuit breaking capacity.
What type of protection does the breaker use?
It uses a thermal magnetic trip unit to provide overload and short circuit protection.
Trusted by Electrical Professionals Worldwide
Chint NM8 moulded case circuit breakers are used by panel builders, contractors and maintenance engineers to provide dependable low-voltage circuit protection across commercial and industrial installations.
