Feature: 1. 30A: This board uses oversized current (30A) pure copper foot relay and oversized thermistor NTC 10D 20 to effectively defend the machine from excessive starting current. 2. AC 100V‑250V: Power supply voltage adaptation range of AC 110V to 250V, small and fine, simple installation. 3. Scope of Application: Start protection board is suitable for high end voice frequency power input, or other large start up current machine applications. Use suitable for power up to 6600W. 4. Simple Operation: This board does not require an auxiliary power supply, only two terminals, one for power input (before you can connect a switch control), and one for output load, easy to use. 5. PCB Material: Start protection board is made of PCB material, long time use without deformation, thus ensuring long term stability. Specification: Item Type: 30A 6600W Soft Start Protection Module Material: PCB Power Supply Voltage Adaptation Range: AC 100V-250V Current: 30A (Maximum) Power: 6600W (Maximum). Package List: 1 x 30A 6600W Soft Start Protection Module