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.
£236.87
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.
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.
| Current | 80 A |
|---|---|
| Phase | Three Phase |
| 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 |
It protects low-voltage electrical circuits against overloads and short circuits in commercial and industrial applications.
The NM8-125S-4P-80A has a 80 A rated current.
This breaker has a 4-pole configuration suitable for three-phase systems with neutral.
The NM8-125S-4P-80A provides a 50 kA short circuit breaking capacity.
It features an adjustable thermal magnetic trip unit providing overload and instantaneous short circuit protection.
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.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...