リンクがクリップボードにコピーされました残留電流保護
Compact and highly reliable, these residual current monitors are purpose-built for modern EV charging infrastructure. Engineered to detect both AC and DC leakage currents in real time, they help prevent electrical hazards and ensure continuous system safety. With integrated auto-reset capability, they minimize downtime and simplify maintenance-ideal for OEM integration or panel-mounted EVSE designs. Fully compliant with IEC 62955, IEC 62752, and UL 2231-2, these monitors deliver trusted protection for Mode 2 and Mode 3 charging applications across both single-phase and three-phase installations. Their flexible, space-saving form factors support a wide range of charging station architectures, providing dependable fault detection and enhanced operational safety for residential, commercial, and public EV charging environments
下のサブカテゴリ 残留電流保護
Residual Current Protection Parts
リンクがクリップボードにコピーされました
フィルター
残留電流保護 アプリケーション
- EV 充電ステーション
- EV Charges & DC Charges
- EV ワイヤレス充電
What Is an RCD?
An RCD, or Residual Current Device, is a life-saving device that is fitted in electrical installations. It is a device that detects a current flowing through a person's body or electrical equipment, and if the fault current is above a certain threshold, it will be detected, and the RCD will be activated and remove power from the appliance, the circuit or the installation and thereby provides protection against electric shock. Although RCDs are specifically designed to provide protection against electric shock, they can also provide protection against electrical fire in certain cases.
RCDs offer a level of personal protection that ordinary fuses and circuit-breakers simply cannot provide.
What Does an RCD Do?
An RCD is a sensitive safety device that switches off electricity automatically if there is a fault. They are designed to protect against the risks of electrocution and fire caused by earth faults.
How Does RCD Technology Work?
RCD technology operates on the principle of detecting residual current-an imbalance in the electrical current flowing through a circuit. 使用方法は以下の通りです。
What is a residual current?
It's the difference between the current flowing to a load (e.g., an appliance) and the current returning from it. Under normal conditions, these currents are equal and flow in opposite directions.
How is this imbalance detected?
A 変流器 is used to monitor the conductors. It measures the vector sum of the currents. If the incoming and outgoing currents are equal, their sum is zero, and the transformer detects no residual current.
What happens during a fault?
If there's a fault-such as a person touching a live wire or a leakage to ground-the returning current is less than the outgoing current. This imbalance creates a residual current, which the transformer detects.
What does the RCD do when it detects a residual current?
When the transformer senses a non-zero current (indicating a fault), the RCD quickly disconnects the power to prevent electric shock or fire.
Does the load current affect detection?
No. Even if the load current is high (e.g., 20 or 60 amps), the transformer still sees zero current as long as the incoming and outgoing currents are equal. It only reacts when there's a difference.