The **FTR-K3JB006W-HC** is a high-capacity power relay manufactured by Fujitsu. It is specifically designed for high-current applications, making it common in the power electronics industry, particularly for solar inverters and industrial power supplies. --- ### ## Technical Specifications The following table summarizes the key electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Relay Type** | Power Relay (Electromechanical) | | **Contact Form** | 1 Form A (SPST-NO - Normally Open) | | **Coil Voltage** | 6 VDC | | **Contact Rating (Resistive)** | 25A @ 250 VAC / 30 VDC | | **Max. Switching Power** | 6,250 VA / 750 W | | **Contact Material** | Silver Tin Oxide (AgSnO2) | | **Coil Power Consumption** | Approx. 780 mW | | **Mounting Type** | Through Hole (PCB) | | **Operating Temperature** | -40°C to +85°C | --- ### ## Key Features 1. **High Current Capacity (-HC):** The "HC" suffix denotes a High Capacity version, capable of handling up to 25 Amperes. This is significantly higher than standard miniature relays. 2. **Reinforced Insulation:** It features a high insulation distance (clearance/creepage) between the coil and contacts (min. 8.5mm), providing safety in high-voltage circuits. 3. **Low Profile:** Despite its power rating, the physical height is kept low (approx. 15.7mm) to fit in slim electronic assemblies. 4. **High Surge Strength:** Designed to withstand surges of up to 10,000V between coil and contacts. --- ### ## Internal Diagram & Pinout While the physical layout is standard for the FTR-K3 series, the internal logic is as follows: ```text [Coil Pin 1] ----( Coil )---- [Coil Pin 2] [Common Pin] ----/ /---- [Normally Open Pin] (Switch) ``` ### ## Common Applications * **Renewable Energy:** Main switching component in solar inverters. * **HVAC Systems:** Controlling high-power compressors or heaters. * **Industrial Automation:** Switching heavy motor loads or power distribution units. * **EV Charging:** Used in AC charging stations for power disconnection. ---