Features: Made of metal, sturdy, and good performance, long service lifeIt is characterized that when the circuit has overvoltage, undervoltage or overcurrent problems, it can automatically cut off the power supply to protect the electrical equipment from damage. And it will automatically turn on the power when the voltage back to normal. Simple interface with indicators, it is easy to operate. 3 optional currents can be selected. Voltage limiter relay only, other accessories demo in the picture are not included! Specification:Material: ABS, Electronic ComponentsOptional Current: 40/63/80ARosize: app.3.6x 6.5x8.5cm/1.41x2.55x3.34inColor: WhiteQuantity: 1 PcProduct Parameters:1. Model Number: SVP-912 40A or 63A or 80A2. Power Supply: 220VAC 50/60Hz3.Max. Charging power: 1-40A or 1-63A or 1-80A adjustable (default: 40A or 63A or 80A)4. Voltage protection value range: 221V-300-OFF (default: 280V)Voltage recovery voltage range: 220V-299v (default: 250V)Voltage protection operation time: 0.1s-10s (default value: 0.1s)5. Value Voltage Protection: 219v-150V-OFF (Default: 160V)Under-Voltage Recovery Voltage Range: 151v-220V (Default: 180V)Under-Voltage Protection Operation Time: 0.1s-10s (Default: 0.1s)6. Recovery Delay Time: 2s-120s (default: 60s)7. Power-on delay time: 2s-10s (default: 2s)8. Power Consumption: lt; gt;9. Electric machine life: 100,000 times10. Installation: 35mm DIN RailNote: No retail package. Please allow 0-1cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1 x Relay Over and Under Voltage LimiterFAQ:1. Is there a tracking number for my item? Yes, we ship every order with their tracking number, and you can see the status of the shipment on the corresponding website.2. Is the product the same as the photos? Yes, all photos are real. We took these photos ourselves.3. What size can fit me? We suggest you look at our size suggestion chart below and our product size chart if you have a normal figure. If you have a special figure, please fit in (tell us your height and weight, bust, waist, hip size).4. I am a seller, I would like to buy many pieces of the item, what is the price ? Hi, thank you for your inquiry, if you want to buy large quantity, please send to us, we will give you the best price, thanks!