Chint NM1TL-125/4/X1/T1 enclosed Earth Leakage Circuit Breaker with 125A rating, 4-pole configuration and adjustable 50 mA to 500 mA earth leakage protection for commercial and industrial electrical distribution.
£986.36
The Chint NM1TL-125/4/X1/T1 is a dependable enclosed Earth Leakage Circuit Breaker (ELCB) designed to protect low-voltage electrical distribution systems from overloads, short circuits and earth leakage faults. Built around Chint’s proven moulded case circuit breaker technology, it provides reliable protection for commercial, industrial and infrastructure applications where electrical safety and continuity are essential.
As part of the Chint NM1TL series, this device combines circuit protection and earth leakage detection in one compact enclosed unit. Adjustable leakage sensitivity and selectable time delay settings allow the breaker to be configured for different installation requirements, helping engineers improve selectivity and reduce unwanted tripping while maintaining effective fault protection.
With a 125 A rated current, 4-pole configuration and adjustable 50 mA to 500 mA earth leakage protection, the NM1TL-125/4/X1/T1 is suitable for three-phase power distribution systems with neutral, industrial switchboards, machinery supplies and commercial electrical panels.
The Chint NM1TL range is designed to provide practical, adjustable protection for power distribution systems where both circuit protection and residual current monitoring are required. Its integrated design helps simplify panel layouts while providing dependable protection against common electrical fault conditions.
For engineers, contractors and panel builders, the NM1TL-125/4/X1/T1 offers a reliable solution for protecting larger circuits in industrial control panels, commercial distribution boards and machinery power supplies.
| Current | 125 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | Chint |
| Series | NM1TL |
| Model | NM1TL-125/4/X1/T1 |
| Product type | Enclosed Earth Leakage Circuit Breaker (ELCB) |
| Rated current | 125 A |
| Number of poles | 4 Pole |
| Earth leakage sensitivity | Adjustable 50 mA to 500 mA |
| Time delay | Adjustable 0.1 s, 0.3 s, 0.5 s and 1 s |
| Rated operational voltage | Up to 690 V AC |
| Frequency | 50 / 60 Hz |
| Protection functions | Earth leakage, overload and short circuit |
| Mounting type | Panel mounting |
| Standard | IEC/EN 60947-2 |
It is used to protect low-voltage electrical circuits against overloads, short circuits and earth leakage faults in commercial and industrial installations.
The NM1TL-125/4/X1/T1 has a 125 A rated current.
The X1 version provides adjustable earth leakage sensitivity settings of 50 mA, 100 mA, 200 mA and 500 mA.
The T1 version provides selectable trip delay settings of approximately 0.1, 0.3, 0.5 and 1 second to support improved protection selectivity.
It is typically installed within industrial switchboards, commercial distribution panels and machinery control systems requiring integrated earth leakage protection.
Chint NM1TL enclosed Earth Leakage Circuit Breakers are used by contractors, panel builders and electrical engineers to provide reliable protection for low-voltage 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...