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-4p-80a chint 80a 4p adjustable thermal mccb
Chint NM8-125S-4P-80A moulded case circuit breaker with 80A rated current, 4-pole configuration, adjustable thermal magnetic protection and 50kA breaking capacity for low-voltage electrical distribution.
Why Choose the Chint NM8-125S-4P-80A MCCB?
The Chint NM8-125S-4P-80A is a high-performance moulded case circuit breaker (MCCB) designed to provide dependable overload and short circuit protection for low-voltage electrical distribution systems. As part of the proven Chint NM8 series, it delivers reliable circuit protection for commercial, industrial and OEM applications where electrical safety and operational continuity are essential.
Featuring an adjustable thermal magnetic trip unit, the NM8-125S-4P-80A combines thermal overload protection with instantaneous magnetic short circuit protection. The adjustable thermal setting enables engineers and panel builders to coordinate protection with cable ratings and connected equipment, providing greater flexibility whilst maintaining dependable fault protection.
With a 80 A rated current, 4-pole configuration and 50 kA breaking capacity, the NM8-125S-4P-80A is ideal for three-phase systems with neutral, industrial switchboards, distribution panels, machinery and commercial electrical installations requiring robust MCCB protection.
Key Advantages
- Reliable moulded case circuit breaker for low-voltage protection.
- 80 A rated current suitable for commercial and industrial applications.
- 4-pole configuration for three-phase systems with neutral.
- 50 kA short circuit breaking capacity.
- Adjustable thermal magnetic trip unit for flexible protection.
- Provides dependable overload and short circuit protection.
- Compact design for electrical panels and switchboards.
Key Features
- Chint NM8 series MCCB.
- 80 A rated current.
- 4-pole construction.
- 50 kA breaking capacity.
- Adjustable thermal magnetic protection.
- Suitable for AC 50 / 60 Hz systems.
- Designed for low-voltage power distribution.
- Panel and switchboard mounting.
Reliable MCCB Protection for Electrical Distribution
The Chint NM8-125S-4P-80A protects electrical circuits by disconnecting the supply during overload and short circuit conditions. This helps safeguard cables, switchgear and connected equipment whilst improving the reliability and safety of low-voltage electrical installations.
Its compact frame, adjustable protection characteristics and high interrupting capacity make it a practical choice for panel builders, electrical contractors and maintenance engineers working across a wide range of commercial and industrial installations.
Typical Applications
- Three-phase distribution systems with neutral.
- Industrial control panels.
- Commercial electrical installations.
- Motor control centres.
- Manufacturing and production facilities.
- OEM machinery and automation equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Mounting Type | Fixed | |
|---|---|---|
| Application | Power distribution | |
| Current | 80 A | |
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 50 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | Chint | |
| Series | NM8 | |
| Model | NM8-125S-4P-80A | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated current | 80 A | |
| Number of poles | 4 Pole | |
| Trip unit | Adjustable 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-4P-80A used for?
It protects low-voltage electrical circuits against overloads and short circuits in commercial and industrial applications.
What is the rated current of this MCCB?
The NM8-125S-4P-80A has a 80 A rated current.
How many poles does this breaker have?
This breaker has a 4-pole configuration suitable for three-phase systems with neutral.
What breaking capacity does this MCCB provide?
The NM8-125S-4P-80A provides a 50 kA short circuit breaking capacity.
What type of trip unit does this breaker use?
It features an adjustable thermal magnetic trip unit providing overload and instantaneous short circuit protection.
Trusted by Electrical Professionals Worldwide
Chint NM8 moulded case circuit breakers are trusted by electrical engineers, contractors and panel builders to provide dependable low-voltage protection across commercial and industrial power distribution systems.
