CHINT NR2-25-18 thermal overload relay with a 12.00–18.00 A adjustable current range designed for three-phase AC motor overload and phase-loss protection.
£26.19
The CHINT NR2-25-18 is a reliable thermal overload relay designed to provide overload and phase-loss protection for three-phase AC motors in industrial motor control and automation applications. As part of the trusted CHINT NR2 thermal overload relay series, it provides adjustable motor protection and dependable operation when integrated with compatible contactor assemblies.
This relay uses a three-phase bimetal thermal protection structure to monitor motor current and trip the control circuit when excessive load conditions occur. The NR2 series includes features such as temperature compensation, trip indication, test functionality and manual/automatic reset selection to support reliable industrial operation.
With an adjustable current range of 12.00–18.00 A, the CHINT NR2-25-18 is suitable for protecting three-phase motors used in machinery, pumps, conveyors and industrial control systems. It is designed for compact motor starter assemblies with compatible CHINT contactors.
Thermal overload relays such as the CHINT NR2-25-18 protect motors by detecting sustained overcurrent conditions and disconnecting the motor control circuit before overheating can occur. This helps improve equipment reliability and reduce the risk of motor failure in industrial applications.
The NR2 series is designed for electrical engineers, machine builders and automation professionals requiring dependable motor protection with adjustable settings, compact installation and straightforward integration into motor starter systems.
| Manufacturer | CHINT |
|---|---|
| Series | NR2 Thermal Overload Relay |
| Model | NR2-25-18 |
| Product type | Thermal overload relay |
| Current setting range | 12.00–18.00 A |
| Frame size | NR2-25 |
| Protection type | Overload and phase-loss protection |
| Rated frequency | 50 / 60 Hz |
| Rated operational voltage | Up to 690 V AC |
| Rated insulation voltage | 690 V |
| Trip class | 10A |
| Number of poles | 3 |
| Mounting type | Plug-in mounting |
| Compatible contactors | CHINT NC1 series |
| Auxiliary contacts | 1 NO + 1 NC |
| Compliance standard | IEC/EN 60947-4-1 |
The CHINT NR2-25-18 is a thermal overload relay used to protect three-phase AC motors from overload and phase-loss conditions.
The relay has an adjustable current setting range of 12.00–18.00 A.
The relay provides thermal overload protection and phase-loss protection for industrial motor applications.
The NR2-25-18 is designed for use with compatible CHINT contactors including the NC1 series.
The NR2 series supports manual and automatic reset operation for flexible motor control system designs.
CHINT NR2 thermal overload relays provide reliable motor protection solutions for industrial automation, motor starters and electrical control systems worldwide.
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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...