1. Overview

2. Core Parameters

3. Product Features

• Fast Response: Equipped with high-sensitivity current detection capability, it can trigger protection instantly when abnormal current occurs, minimizing fault losses to the greatest extent and safeguarding the stability of the entire power system.
• High Reliability: Adopts industrial-grade electronic components and robust structural design, enabling long-term stable operation in harsh industrial environments including high temperature, dust, and mechanical vibration, with outstanding anti-interference performance.
• Excellent Adjustability: The overcurrent trigger threshold and operating time can be finely adjusted via knobs or control panels, making it highly adaptable to different types of electrical loads and personalized protection requirements in various industrial scenarios.
• Strong Compatibility: Supports seamless integration with a variety of PLC, PAC or DCS systems. It can transmit relay output signals to realize remote control, fault alarm and real-time status monitoring, perfectly matching modern industrial automation control systems.

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4. Structure and Composition

• Current Detection Component: Generally adopts current transformers or high-precision current sensors, responsible for real-time monitoring of current magnitude in the circuit and transmitting accurate current data to the control module.
• Electronic Control Module: The core computing unit of the relay, which compares the detected current value with the preset threshold, calculates the operating time accurately, and sends corresponding action instructions to the output component.
• Output Contact: Equipped with normally open or normally closed relay contacts, which will close or disconnect the circuit quickly when abnormal current is detected, completing the circuit protection action efficiently.
• Human-Machine Interface (HMI): Usually configured with knobs, DIP switches or small LCD panels, facilitating users to set protection parameters, view operating status and indicator light feedback, simplifying operation and maintenance.

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5. Application Fields

• Motor Protection: Widely used for overload and short circuit protection of three-phase asynchronous motors, effectively preventing motor burnout caused by excessive current and extending the service life of motor equipment.
• Power Distribution System: Installed in power distribution boxes and cabinets to protect power distribution lines from overload damage, ensuring the safe and stable operation of the entire power distribution network.
• Industrial Automation: Serves as an input module for PLC or DCS systems, providing safe and reliable current monitoring and fault alarm signals, supporting the stable operation of automated production lines.
• Building Facilities: Applied to power distribution protection in large commercial buildings, industrial plants and public facilities, ensuring safe power supply and preventing electrical safety accidents in buildings.

Our Advantages

Our Core Strengths

100% Brand New & Original Products

• 12-Month Warranty: We provide a full 12-month warranty for all our products, offering reliable after-sales protection and eliminating your worries about product quality and usage.
• Premium Quality: Every product is crafted with high-grade materials and undergoes strict quality inspection procedures, ensuring stable performance and long service life to meet your high-standard demands.
• Competitive Pricing: We optimize production and supply chain costs, offering cost-effective products without compromising quality, helping you maximize cost savings and market competitiveness.

Professional After-Sales Service

Adequate Supply Capacity

Why Choose Us?

• Competitive Prices: Unbeatable pricing strategy backed by optimized supply chain and mass production, bringing you greater cost advantages.
• 12-Month Warranty: Comprehensive quality assurance for all products, safeguarding your rights and interests for a long term.
• Professional Service: One-stop professional service from pre-sales consultation to after-sales support, delivering a seamless cooperation experience.
• Guaranteed Brand New & Genuine Products: Strict quality control system ensures 100% brand new and authentic products, refusing any refurbished or counterfeit goods.
• On-Time Delivery: Efficient production scheduling and logistics system guarantee prompt delivery, meeting your project and market demand deadlines.