TH-N220 RHKP 120-180A
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Overview of Mitsubishi TH-N220-RHKP-120-180A
The Mitsubishi TH-N220-RHKP-120-180A is a high-quality thermal overload relay from the MS-N series designed for motor protection applications. It features a 3-element (2E) design, offering precise and reliable thermal overload protection for motors within the setting current range of 140 to 220 Amperes, making it suitable for a wide range of industrial motor control systems. This relay is built to ensure motor safety by preventing damage caused by overheating and overload conditions.
Key Features of Mitsubishi - TH-N220-RHKP-120-180A
- Type: 3-element thermal overload relay (2E type) for enhanced protection accuracy.
- Heater Designation: 180 Amperes, suitable for motors drawing currents within the range 140 to 220 A.
- Setting Current Range: Adjustable from 140 to 220 A to match motor specifications and protection needs.
- Rated Capacity: Corresponding motor power ratings: 55 kW (3-phase, 220-240V) and 110 kW (3-phase, 380-440V).
- Rated Voltage: 690 V maximum, suitable for high-voltage motor circuits.
- Operating Frequency: 50 to 60 Hz for use with common industrial power supplies.
- Auxiliary Contacts: One normally open (NO) and one normally closed (NC) contact for control and signaling integration.
- Dimensions: Width 144 mm, Height 114 mm, Depth 179.5 mm for standard panel mounting.
- Weight: Approximately 2.5 kg, robust build quality.
- Certifications: CE, UL/cUL, UKCA compliant ensuring safety and performance standards.
- Ambient Temperature Range: Operating temperature from -10°C to +40°C suitable for typical industrial environments.
Technical Specs of TH-N220-RHKP-120-180A
| Specification | Details |
|---|---|
| Model | TH-N220-RHKP-120-180A |
| Type | 3-element thermal overload relay (2E) |
| Heater Designation (A) | 180 |
| Range of Setting Current (A) | 140 - 220 |
| Rated Motor Capacity (kW) | 3-phase 220-240V: 55 kW; 3-phase 380-440V: 110 kW |
| Rated Voltage (V) | 690 |
| Frequency Range (Hz) | 50 - 60 |
| Auxiliary Contacts | 1 NO, 1 NC |
| Dimensions (W x H x D) | 144 × 114 × 179.5 mm |
| Weight | 2.5 kg |
| Certifications | CE, UL/cUL, UKCA |
| Operating Temperature | -10°C to +40°C |
Applications / Use Case
The Mitsubishi TH-N220-RHKP-120-180A thermal overload relay is used to protect large industrial motors from overheating caused by excessive current or prolonged overload conditions. It is suitable for use in motor control centers, industrial automation, pumps, compressors, conveyors, and other heavy machinery requiring reliable motor protection.
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