NR2 Series Chint Thermal Overload Relay Switchgear
The Chint NR2 Thermal Overload Relay is designed to protect electric motors from overload and phase failure by accurately detecting excessive current conditions. It provides reliable, sensitive motor protection and helps prevent damage caused by overheating, ensuring safe and efficient motor operation.
Categories:
Chint SwitchgearKey Features
- Precise Overload Protection – Detects and trips during motor overloads to prevent motor damage.
- Adjustable Current Settings – Wide adjustable range for customized motor protection.
- Phase Failure Protection – Protects motors against phase loss and phase imbalance.
- Manual and Automatic Reset Options – Flexibility in operation and maintenance.
- Compact Design – Easy to install in control panels and motor starter assemblies.
- Compatibility – Suitable for use with Chint contactors and various motor starters.
- Standards Compliance – Conforms to IEC 60947-4-1 and related standards for overload relays.
| Specification | Details |
|---|---|
| Type | Thermal Overload Relay (NR2 Series) |
| Rated Operational Voltage (Ue) | Up to 690 V AC |
| Current Range | 0.1 A to 93 A (adjustable) |
| Trip Class | Class 10, Class 20 (selectable) |
| Number of Poles | 3-pole |
| Reset Method | Manual or Automatic |
| Mounting | DIN rail or direct mounting on contactor |
| Electrical Endurance | Up to 10,000 operations |
| Mechanical Endurance | Up to 1 million operations |
| Standards Compliance | IEC 60947-4-1 |
| Applications | Motor overload protection, phase failure protection |
| Model | Current Range (A) | Mounting Type | Reset Type | Contact Configuration | Typical Application |
|---|---|---|---|---|---|
| NR2-06 | 1.6 – 2.5 | Direct mount | Manual / Automatic | 1 NO + 1 NC | Small motor protection |
| NR2-10 | 2.5 – 4 | Direct mount | Manual / Automatic | 1 NO + 1 NC | Light motor control |
| NR2-18 | 4 – 6.3 | Direct mount | Manual / Automatic | 1 NO + 1 NC | Medium motor protection |
| NR2-32 | 6.3 – 10 | Direct mount | Manual / Automatic | 1 NO + 1 NC | General motor protection |
| NR2-63 | 10 – 16 | Direct mount | Manual / Automatic | 1 NO + 1 NC | Heavy motor protection |
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Catalog Name
|
Catalog Number[size]
|
Last Update
|
|---|---|---|
| NR2-Thermal Overload Relays-catalog | --- [1085KB] |
25 March 2025 |
Applications
- Motor overload protection in industrial automation
- Pump and compressor control panels
- HVAC motor protection
- Conveyor and material handling systems
- General motor starter circuits
Why Choose
- Accurate and reliable motor protection for enhanced equipment life.
- Flexible settings to match a variety of motor sizes and applications.
- Compact and easy to install in existing control systems.
- Meets international quality and safety standards.
- Cost-effective solution for motor overload protection.
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