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nm8-125s-3p-20a chint 20a 3p adjustable thermal 50ka mccb
Chint NM8-125S-3P-20A moulded case circuit breaker with 20A rated current, 3-pole configuration, adjustable thermal magnetic protection and 50kA breaking capacity for low-voltage electrical distribution.
£89.13
Why Choose the Chint NM8-125S-3P-20A MCCB?
The Chint NM8-125S-3P-20A is a reliable moulded case circuit breaker (MCCB) designed to protect low-voltage electrical circuits against overloads and short circuits. As part of the Chint NM8 series, it provides dependable circuit protection for commercial, industrial and panel-building applications where safe isolation and robust fault protection are required.
This MCCB features adjustable thermal magnetic protection, allowing the breaker to respond to overload conditions through its thermal element and short circuit faults through its magnetic trip mechanism. Its adjustable thermal setting helps engineers match protection more closely to cable ratings, connected equipment and installation requirements.
With a 20 A rated current, 3-pole configuration and 50 kA breaking capacity, the NM8-125S-3P-20A is suitable for three-phase distribution boards, machinery circuits, motor control panels and industrial electrical systems requiring compact and dependable MCCB protection.
Key Advantages
- Reliable moulded case circuit breaker for low-voltage protection.
- 20 A rated current suitable for smaller three-phase circuits.
- 3-pole configuration for three-phase electrical systems.
- 50 kA short circuit breaking capacity for dependable fault protection.
- Adjustable thermal magnetic trip unit for overload and short circuit protection.
- Adjustable thermal setting supports flexible circuit design.
- Suitable for industrial panels, switchboards and commercial installations.
Key Features
- Chint NM8 series MCCB.
- 20 A rated current.
- 3-pole design.
- 50 kA breaking capacity.
- Adjustable 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-20A provide essential protection within low-voltage electrical installations. By disconnecting circuits during overload or short circuit conditions, the MCCB helps protect cables, electrical equipment and downstream devices from damage.
The NM8 range is widely used in control panels, distribution boards and industrial power systems where reliable protection, compact construction 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
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| Mounting Type | Fixed | |
|---|---|---|
| Application | Power distribution | |
| Current | 20 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-20A | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated current | 20 A | |
| Number of poles | 3 Pole | |
| Trip unit | Adjustable thermal magnetic | |
| Breaking capacity | 50 kA | |
| Rated operational voltage | Up to 690 V AC | |
| 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-20A used for?
It is used to protect three-phase low-voltage electrical circuits against overloads and short circuits in industrial, commercial and machinery applications.
What is the rated current of this MCCB?
The NM8-125S-3P-20A has a 20 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-20A provides a 50 kA short circuit breaking capacity.
What type of protection does the breaker use?
It uses an adjustable 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 reliable circuit protection across commercial and industrial low-voltage installations.
