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Mitsubishi TH-N Thermal Overload Relays

Manufacturer: Mitsubishi
Rated Voltage: 690V AC
Rated Impulse Withstand Voltage: 6kV
Vibration Resistance: 10-55Hz

Product Description

The Mitsubishi TH-N Series Thermal Overload Relays are designed for robust motor protection in industrial electrical systems. They provide reliable overload and phase-failure protection for three-phase AC motors operating at 50Hz/60Hz, with coverage up to 690V and currents up to 800A.

Standard Features

The series includes delayed-action types with saturable reactors, ideal for motors requiring extended starting times. Engineered for durability, they operate effectively in harsh environments, including high humidity and variable temperatures.

  • Dual Protection: Safeguards against motor overloads and phase loss

  • High Capacity: Supports currents up to 800A and voltages to 690V

  • Delayed-Action Models: Equipped with saturable reactors for long-starting motors

  • Easy Coordination: Compatible with MCCBs for unified protection systems

  • Versatile Mounting: Options for standalone use or integration with starters

  • Robust Construction: Operates in temperatures from -10°C to +40°C and up to 2000m altitude

  • Multi-Element Designs: Includes 2- or 3-thermal element variants for tailored protection

Technical Specifications

ModelCurrent range (Amps)Power Consumption [VA/Element] Minimum/Maximum Settling
TH-N12034-1003.0/7.1
TH-N120TA85-1503.8/8.6
TH-N22065-2501.0/2.3
TH-N40085-400
TH-N600200-800

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