复合开关，HXFK0.4-45A

复合开关HXFK0.4-45A产品介绍（中英文）

产品概述

HXFK0.4-45A复合开关是一种专为低压无功补偿系统设计的机电一体化智能投切装置，适用于交流50Hz-60Hz、额定电压380V的电力环境。该产品采用可控硅与磁保持继电器并联的独特结构，兼具电子开关快速响应和机械开关低功耗的优势，可实现对电容器组的精准控制。其核心特点是电压过零导通和电流过零断开技术，能有效抑制涌流和操作过电压，延长电容器使用寿命。134

技术特点

该复合开关通过单片机智能监控系统实现多重保护功能，包括电压缺相保护、自诊断故障保护和停电自动跳闸等。在导通阶段，磁保持继电器接触电阻小，运行时几乎不发热，无需额外散热装置；在投切瞬间，可控硅的过零触发技术确保无谐波注入。产品支持共补控制模式，适用于30kvar及以下容量的电容组投切，安装方式兼容导轨固定与螺丝安装，适应不同柜体结构需求。1613

应用领域

HXFK0.4-45A广泛应用于工业配电、商业建筑、新能源等领域，特别适合需要频繁投切电容的场合。其设计兼顾动态响应速度与运行稳定性，可匹配各类无功补偿控制器，优化电网功率因数。产品采用分体式模块化设计，便于维护更换，防护等级符合常规配电环境要求。41118

HXFK0.4-45A Hybrid Switch Product Introduction

Overview

The HXFK0.4-45A hybrid switch is an electromechanical integrated intelligent switching device designed for low-voltage reactive power compensation systems. It operates in AC 50Hz-60Hz networks with rated voltage of 380V. Combining thyristor and magnetic latching relay in parallel configuration, this product achieves precise capacitor bank control while integrating the fast response of electronic switches with the low-power consumption of mechanical contacts. Its zero-crossing switching technology effectively suppresses inrush currents and operational overvoltages. 136

Technical Features

With microcontroller-based intelligent monitoring, the switch provides multiple protections including phase-loss protection, self-diagnosis fault protection, and power-off auto-tripping. The magnetic latching relay maintains ultra-low contact resistance during conduction, eliminating heat generation without external cooling. Thyristor zero-cross triggering ensures harmonic-free operation during switching transitions. Supporting three-phase common compensation mode, it handles capacitor banks up to 30kvar. The compact design accommodates both DIN rail mounting and screw fixation for flexible installation. 11323

Applications

Ideal for industrial power distribution, commercial buildings, and renewable energy systems, this hybrid switch excels in frequent capacitor switching scenarios. Its balanced dynamic response and operational stability enhance power factor correction when paired with various controllers. The modular design simplifies maintenance, with protection grade meeting standard cabinet environmental requirements. 41819

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