Features: Standard modular structure, guide rail type installation Real-time monitoring of DC overvoltage and undervoltage faults No additional auxiliary power supply required Both overvoltage and undervoltage values can be adjusted Action time can be adjusted 2 sets of normally open and normally closed contacts 2 indicator lights indicate various working conditions Typical applications: DC motor, battery, UPS power supply, DC switchgear, DC panel, industrial control system Specification: Protection function: Overvoltage, undervoltage Model: DVRD-12/24/36/48 (Optional) Rated voltage: DC 12V/24V/36V/48V (Optional) Monitoring circuit: Direct current circuit Overvoltage regulation range: DC 12V: 13–17V DC 24V: 26–34V DC 36V: 39–51V DC 48V: 52–68V Undervoltage adjustment range: DC 12V: 10–14V DC 24V: 20–28V DC 36V: 30–42V DC 48V: 40–56V Action delay range: 0.1–15s Display mode: Normal, action – 2 LED lights indicate the working status Contact form: 2 sets of normally open and normally closed contacts Contact capacity: 6A 250VAC (resistive) Installation: 35mm guide rail Overall dimensions: Approx. 79 x 23 x 79mm / 3.1 x 0.9 x 3.1in Weight: 200g / 7.1oz (approx.) Package list: 1 x Overvoltage Undervoltage Protector Note: The new or old version of this product may be shipped randomly. Please ensure you are comfortable with this before placing your order.