Why Choose the Chint NM1TL-100/3/X1/T1 Enclosed ELCB?
The Chint NM1TL-100/3/X1/T1 is a high-quality enclosed Earth Leakage Circuit Breaker (ELCB) designed to provide reliable protection against overloads, short circuits and earth leakage faults in commercial and industrial electrical installations. Featuring a 100A three pole MCCB with adjustable earth leakage protection, it is ideal for protecting three-phase power distribution systems and industrial equipment.
Part of the trusted Chint NM1TL enclosed ELCB range, this unit combines the proven performance of the NM1 moulded case circuit breaker with integrated earth leakage protection inside a durable enclosure. The enclosed construction provides a practical solution for local isolation and protection in demanding environments.
With a 100A rated current, 3 pole configuration and an adjustable residual current setting from 50mA to 500mA, the NM1TL-100/3/X1/T1 is suitable for commercial buildings, industrial machinery, manufacturing plants and low-voltage distribution systems requiring comprehensive electrical protection.
Key Advantages
Complete enclosed ELCB solution combining circuit and earth leakage protection.
100A rated current for higher capacity three-phase circuits.
Three pole configuration for industrial power distribution.
Adjustable 50mA to 500mA earth leakage protection.
Provides overload, short-circuit and residual current protection.
Durable enclosed construction for safe installation and isolation.
Key Features
Chint NM1TL enclosed ELCB series.
100A rated current.
3 pole configuration.
Adjustable earth leakage setting from 50mA to 500mA.
Thermal magnetic protection for overload and short-circuit faults.
Integrated earth leakage protection.
Enclosed format for commercial and industrial installations.
Suitable for low-voltage distribution systems.
Reliable Protection for Three-Phase Installations
The NM1TL series combines the performance of a moulded case circuit breaker with adjustable earth leakage protection, allowing a single device to protect electrical circuits from overloads, short circuits and residual current faults. This helps improve electrical safety while protecting connected equipment and reducing downtime.
Its enclosed design makes installation straightforward while providing additional protection for the breaker in commercial, industrial and manufacturing environments where reliable electrical protection is essential.
Typical Applications
Commercial electrical distribution.
Industrial machinery supplies.
Manufacturing facilities.
Three-phase control panels.
Motor protection circuits.
Distribution boards and switchboards.
Technical Specifications
Current
100 A
Phase
Three Phase
Manufacturer
Chint
Series
NM1TL
Model
NM1TL-100/3/X1/T1
Product type
Enclosed Earth Leakage Circuit Breaker
Rated current
100A
Poles
3 Pole
Residual current setting
50mA to 500mA adjustable
Protection
Overload, short-circuit and earth leakage
Rated operational voltage
Up to 415V AC
Frequency
50 / 60Hz
Rated insulation voltage
800V
Mounting type
Enclosed installation
Operation
Manual switching and isolation
Standard
IEC/EN 60947-2
Frequently Asked Questions
What is the Chint NM1TL-100/3/X1/T1 used for?
It provides overload, short-circuit and earth leakage protection for three-phase commercial and industrial electrical installations.
What current rating does this ELCB have?
The NM1TL-100/3/X1/T1 has a rated current of 100A.
What earth leakage range can be selected?
This model offers an adjustable residual current setting from 50mA to 500mA.
Does this device provide overload protection?
Yes. It combines thermal magnetic overload and short-circuit protection with integrated earth leakage protection.
Where is this enclosed ELCB typically installed?
It is commonly installed in commercial distribution systems, industrial control panels, machinery supplies and three-phase electrical installations.
Trusted by Electrical Professionals Worldwide
Chint enclosed ELCBs are trusted by electricians, panel builders and industrial engineers for dependable earth leakage protection, reliable circuit protection and long service life in demanding electrical installations.
Current
100 A
Phase
Three Phase
Manufacturer
Chint
Series
NM1TL
Model
NM1TL-100/3/X1/T1
Product type
Enclosed Earth Leakage Circuit Breaker
Rated current
100A
Poles
3 Pole
Residual current setting
50mA to 500mA adjustable
Protection
Overload, short-circuit and earth leakage
Rated operational voltage
Up to 415V AC
Frequency
50 / 60Hz
Rated insulation voltage
800V
Mounting type
Enclosed installation
Operation
Manual switching and isolation
Standard
IEC/EN 60947-2
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...