Name: KP4-V
Brand: MY SHOP

Description

Product Overview

KP4-V rated voltage AC 380V, frequency 50/60Hz, supports full range monitoring of three-phase voltage, with a measurement accuracy error of ≤ 2% for each phase voltage, ensuring accurate perception of power grid anomalies. The product is equipped with a flexible parameter adjustment system: the overvoltage protection value can be customized within the range of 400V~450V (default 420V at the factory), and the undervoltage protection value covers the range of 320V~360V (default 340V at the factory). It also supports logic settings for phase loss and reverse phase sequence protection. Provide adjustable functions of 1-500S recovery delay and 0.1-30s action delay, effectively avoiding the impact of frequent start stop on the equipment.
Made with industrial grade components, the electrical lifespan is up to 10 ⁵ times, the mechanical lifespan is up to 10 ⁶ times, the protection level is IP20, and it can operate stably in ambient temperatures ranging from -30 ℃ to+70 ℃ and at altitudes below 2000m. Equipped with a three-phase voltage dynamic display window, all parameter configurations can be completed through simple buttons, balancing professionalism and ease of use. It is the core component that ensures the safe and stable operation of the three-phase distribution system.

Main Features

1. Full dimensional fault protection: integrating multiple protection functions such as overvoltage, undervoltage, phase loss, and reverse phase sequence, comprehensively covering common types of faults in three-phase power grids, providing one-stop safety solutions for equipment such as motors, water pumps, and compressors.
2. Wide range precise monitoring: Supports full range monitoring of three-phase voltage, with a measurement accuracy of ≤ 2% for each phase, real-time monitoring of the power grid operation status, flexible adjustment of protection thresholds, and adaptability to different regional power grid characteristics and equipment requirements.
3. Intelligent delay control: Dual delay parameters are independently configured to restore delay and avoid frequent start stop. Action delay ensures fast response, balancing protection sensitivity and device operation stability.
4. High reliability design: wide temperature and altitude adaptability, over a million mechanical and electrical lifetimes, ensuring long-term stable operation and reducing maintenance costs.
5. Intuitive interactive experience: Dynamic display of three-phase voltage data, one click parameter setting, simple and easy to understand operation, convenient for quickly troubleshooting power grid abnormalities.
6. Automatic recovery function: After troubleshooting, it automatically closes the power supply without manual intervention, improving the continuity and convenience of power consumption.

Application scenarios

1. Industrial production scenario: Provide protection for three-phase power equipment such as motors, water pumps, compressors, etc. in factory workshops and production lines to avoid equipment damage and production stagnation caused by abnormal voltage and phase loss.
2. Commercial building power distribution: applied to the front-end of three-phase equipment such as central air conditioning, elevators, lighting systems, etc. in shopping malls, office buildings, hotels, etc., to ensure the safe operation of equipment and improve the stability of commercial operations.
3. Public facility guarantee: Provide protection for the power distribution system of public buildings such as hospitals, schools, and sports centers, ensuring the reliable operation of medical equipment, teaching facilities, sports equipment, etc., and maintaining the normal operation of public services.
4. New energy grid connected system: In distributed photovoltaic, wind power and other new energy grid connected systems, as a grid protection device, it realizes the functions of voltage loss tripping and voltage detection closing, which meets the requirements of national grid connection.
5. Agricultural production electricity: Provide protection for three-phase electrical equipment such as agricultural irrigation pumps and agricultural product processing equipment, adapt to the complex rural power grid environment, and ensure the smooth progress of agricultural production.

Technical Data

Rated supply voltage	AC 220V	Operation voltage range	AC 80V~350V
Rated frequency	50/60Hz	Electric current(>A) setting range	1~40/63A
Rated Current	40/63A(subject to prodect label)	>U And	0.5S
Reset/Start Delay	1~600S	Voltage measurement accuracy	1%(Not exceeding 2% of the overall range)
Rated Insulation Voltage	400V	Output contact	1NO
Electrical lifes	10⁵	Mechanical life	10⁶
Protection Degvree	IP20	Pollution Degree	3
Altiude	≤2000m	Operatintg temperature	-50℃ ~ 55℃
Humidity	≤50%at40 ℃ (without condensation)	Storage temperature	-30℃ ~ 70℃

Function Setting

Product wiring diagram

Wiring and shape dimensions