Why Choose the CHINT NR2-93-40 Thermal Overload Relay?
The CHINT NR2-93-40 is a reliable thermal overload relay designed to provide effective overload and phase failure protection for three-phase AC motors in industrial control and automation systems. As part of the established CHINT NR2 thermal overload relay series, it delivers adjustable current protection and dependable motor safeguarding for contactor-based motor starter applications.
This relay features a three-phase bimetal thermal protection structure with temperature compensation to maintain accurate operation under varying load conditions. The NR2-93-40 includes integrated diagnostic functions, test and stop buttons, trip indication and selectable reset modes, making it suitable for reliable installation and maintenance in industrial electrical panels.
With an adjustable current setting range of 30 A to 40 A and a rated operational voltage of up to 690 V AC, the NR2-93-40 is suitable for protecting industrial motors used in pumps, conveyors, fans, compressors and production machinery.
Key Advantages
- Reliable thermal overload protection for three-phase AC motors.
- 30 A to 40 A adjustable current range for flexible motor protection.
- Phase failure protection helps prevent motor damage caused by supply imbalance.
- Compatible with CHINT contactor systems for compact motor starter assemblies.
- Integrated manual and automatic reset selection for flexible operation.
- Temperature compensation improves tripping accuracy in changing operating conditions.
Key Features
- CHINT NR2 thermal overload relay series.
- 30 A to 40 A adjustable overload setting.
- Three-phase bimetal thermal protection design.
- Class 10A tripping characteristic.
- Integrated overload and phase loss protection.
- Manual and automatic reset selector.
- Built-in TEST and STOP buttons.
- 1 NO + 1 NC electrically separated auxiliary contacts.
Reliable Motor Protection for Industrial Systems
Thermal overload relays such as the CHINT NR2-93-40 protect electric motors by monitoring current levels and disconnecting the motor circuit when overload conditions occur. This helps reduce the risk of overheating, winding damage and unexpected equipment downtime.
The NR2 series is designed for industrial automation engineers, panel builders and OEM manufacturers requiring dependable motor protection, straightforward installation and compatibility with modern contactor-based control systems. The series provides adjustable current settings, temperature compensation, trip indication and flexible mounting options.
Typical Applications
- Industrial pumps and water handling systems.
- Conveyor and material handling equipment.
- Fans and ventilation systems.
- Compressors and mechanical machinery.
- Manufacturing and production equipment.
- Industrial automation and OEM machine building.
