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nr2-25-6 chint thermal overload relay, 4.00a to 6.00a rated current
CHINT NR2-25-6 thermal overload relay with adjustable 4 A to 6 A current setting designed for three-phase motor overload and phase failure protection.
£11.79
Why Choose the CHINT NR2-25-6 Thermal Overload Relay?
The CHINT NR2-25-6 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 trusted CHINT NR2 thermal overload relay series, it offers adjustable current protection and dependable motor safeguarding for contactor-based motor starters.
This relay uses a three-phase bimetal thermal protection design with temperature compensation to provide stable operation under changing environmental conditions. The compact construction, integrated reset functions and diagnostic buttons make the NR2 series easy to install and maintain in industrial electrical panels.
With an adjustable current setting range of 4 A to 6 A and a rated insulation voltage of 690 V AC, the NR2-25-6 is suitable for protecting small to medium industrial motors used in pumps, conveyors, compressors and manufacturing equipment.
Key Advantages
- Reliable thermal overload protection for three-phase AC motors.
- 4 A to 6 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 varying conditions.
Key Features
- CHINT NR2 thermal overload relay series.
- 4 A to 6 A adjustable overload setting.
- Three-phase bimetal thermal protection design.
- Class 10A tripping characteristic.
- Integrated overload and phase loss protection.
- Manual and automatic reset functionality.
- Built-in test and stop buttons for easier maintenance.
- 1 NO + 1 NC electrically separated auxiliary contacts.
Reliable Motor Protection for Industrial Applications
Thermal overload relays such as the CHINT NR2-25-6 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 and panel builders requiring dependable motor protection, straightforward installation and compatibility with modern contactor-based control systems.
Typical Applications
- Industrial pumps and water handling systems.
- Conveyor and material handling equipment.
- Compressors and mechanical machinery.
- Manufacturing and production equipment.
- Motor control panels and starter assemblies.
- Industrial automation and OEM machinery.
Technical Specifications
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| Mounting Type | Direct mount on contactor | |
|---|---|---|
| Device Type | Thermal Overload Relay | |
| Current Range | 4–6 A | |
| Trip Class | Class 10A | |
| Reset Type | Manual / Automatic | |
| Manufacturer | CHINT | |
| Series | NR2 Thermal Overload Relay | |
| Model | NR2-25-6 | |
| Product type | Thermal overload relay | |
| Current adjustment range | 4 A to 6 A | |
| Rated insulation voltage | 690 V AC | |
| Frequency | 50 / 60 Hz | |
| Tripping class | 10A | |
| Protection functions | Overload and phase failure protection | |
| Auxiliary contacts | 1 NO + 1 NC | |
| Reset mode | Manual / automatic selectable | |
| Mounting type | Direct contactor mounting | |
| Protection rating | IP20 when enclosed | |
| Standards | IEC/EN 60947-4-1 |
Frequently Asked Questions
What is the CHINT NR2-25-6 used for?
The CHINT NR2-25-6 is used to protect three-phase AC motors against overload conditions and phase failure in industrial motor control applications.
What current range does the NR2-25-6 support?
The relay supports an adjustable current range of 4 A to 6 A for motor protection settings.
What voltage rating does this overload relay support?
The NR2-25-6 has a rated insulation voltage of 690 V AC and is suitable for industrial motor control circuits.
What protection features are included?
The relay provides thermal overload protection, phase failure protection, temperature compensation and adjustable reset functionality.
How is the NR2-25-6 installed?
The relay is typically mounted directly onto compatible CHINT contactors to create a compact motor starter assembly.
Trusted by Industrial Control Engineers Worldwide
CHINT NR2 thermal overload relays are widely used in industrial motor control systems to provide reliable protection, efficient operation and dependable performance in automation equipment.
