Features: _x000D_ Standard modular structure, guide rail type installation _x000D_ Real-time monitoring of dc overvoltage and undervoltage faults _x000D_ No additional auxiliary power supply is required _x000D_ Both over - voltage and under - voltage value can be adjusted _x000D_ Action time can be adjusted _x000D_ 2 sets of normally open and normally closed contacts _x000D_ 2 indicator lights indicate various working conditions _x000D_ Typical applications: dc motor, battery,UPS power supply, dc switchgear, dc panel, industrial control system _x000D_ _x000D_ _x000D_ Specification:_x000D_ Protection function: over voltage, under voltage_x000D_ Model: DVRD - 12/24/36/48(Optional)_x000D_ Rated voltage: DC 12V/24V/36V/48V(Optional)_x000D_ Monitoring circuit: direct current circuit_x000D_ Protection function: over voltage, under voltage_x000D_ Overvoltage regulation range: _x000D_ DC 12V: 13-17V_x000D_ DC 24V: 26-34V_x000D_ DC 36V: 39-51V_x000D_ DC 48V: 52-68V_x000D_ Undervoltage adjustment range: _x000D_ DC 12V: 10-14V_x000D_ DC 24V: 20-28V_x000D_ DC 36V: 30-42V_x000D_ DC 48V: 40-56V_x000D_ Action delay range: 0.1-15s_x000D_ Display mode: normal, action 2 LED lights indicate the working status_x000D_ Contact form: 2 set of normally open and normally closed contacts_x000D_ Contact capacity: 6A 250VAC (resistivity)_x000D_ Installation: 35mm guide rail_x000D_ Overall dimension: Approx. 79 * 23 * 79mm / 3.1 * 0.9 * 3.1in_x000D_ Weight: 200 g / 7.1 oz(approx.)_x000D_ _x000D_ Package list: _x000D_ 1 x Overvoltage Undervoltage Protector _x000D_ _x000D_ _x000D_ Note:_x000D_ _x000D_ Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.