Product Description

The Mitsubishi TH-N120KP is a thermal overload relay designed to protect three-phase motors from overheating due to overcurrent conditions. It features a 3-element (2E) heater designation and is compatible with Mitsubishi's S(D)-N125 and S(D)-N150 contactors. This relay offers adjustable current settings within specific ranges, allowing for precise protection tailored to the motor's specifications. It includes one normally open (NO) and one normally closed (NC) auxiliary contact for additional control and signaling functions.​

Technical Specifications

• Model: TH-N120KP
• Type: Thermal Overload Relay
• Heater Designation: 3-element (2E)
• Setting Current Range: Varies by model (e.g., 34–50A, 43–65A, 54–80A)
• Rated Voltage: 690 V
• Rated Frequency: 0 (DC) – 400 Hz
• Rated Capacity: Up to 45 kW (depending on voltage)
• Ambient Temperature Range: -10°C to +40°C
• Auxiliary Contacts: 1 NO + 1 NC
• Dimensions (W x H x D): 103 mm x 67 mm x 105 mm
• Weight: Approximately 0.48 kg
• Compliance: RoHS, CE, UL/cUL, UKCA