Product Description

Product Parameters & Specifications

• Rated Current Range: 0.1 to 100A (adjustable by knob, ±5% accuracy per level)
• Tripping Level: Class 10 (IEC 60947-4-1 standard, 2 to 4 seconds at 10 times rated current)
• Applicable Motor Power: 0.06 to 45kW (380V three-phase motor, may fluctuate due to efficiency differences)
• Tripping Mechanism: Bimetallic thermal effect (no electronic components, strong anti-interference)
• Phase Loss Protection: Built-in phase imbalance detection (action time ≤5 seconds when single-phase current is missing)
• Manual/Automatic Reset: Supports gear switching (automatic reset requires external power supply, reset time adjustable from 3 to 10 minutes)
• Operating Temperature Range: -25°C to +70°C (allows short-term overload to 80°C)
• Humidity Range: 5% to 95% non-condensing (compliant with IEC 60068-2-30)
• Protection Level: IP20 (main unit), with optional IP55 terminal cover

Series

Features

• High-Performance Protection: Provides effective protection against motor burnout due to overload, stalling, phase loss, and other faults.
• Wide Current Adjustment Range: Supports a wide range of current adjustments to suit different motor sizes.
• Robust Design: Features a bimetallic thermal effect mechanism for reliable operation in harsh environments.
• Phase Loss Protection: Ensures motor protection in the event of phase loss.
• Flexible Reset Options: Offers both manual and automatic reset options for convenience.
• Wide Operating Temperature Range: Suitable for operation in a wide range of temperatures.
• International Certifications: Passes international certifications such as UL/CSA/IEC/CCC.

Functions

• Overload Protection: Protects motors from damage due to overcurrent.
• Phase Loss Detection: Detects and responds to phase loss conditions to prevent motor damage.
• Manual/Automatic Reset: Allows for manual or automatic reset of the relay after a trip event.

Uses

• Industrial Automation: For protecting motors in industrial machinery.
• Building Facilities: In HVAC systems, pumps, and fans.
• Power Systems: For protecting circuits and devices in power distribution systems.

Application Fields

• Industrial Automation: Suitable for manufacturing plants, process control systems, and other industrial settings.
• Building Automation: Ideal for use in HVAC systems, elevators, and other building automation applications.
• Power Distribution: Used in power systems for circuit protection.
• Manufacturing: Protects motors in various manufacturing processes.
• Other Fields: Applicable in packaging, printing, textile, and electronics industries for motor protection