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 type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1Standard modular structure, guide rail type installation 2Real-time monitoring of dc overvoltage and undervoltage faults 3No additional auxiliary power supply is required 4Both over - voltage and under - voltage value can be adjusted 52 sets of normally open and normally closed contacts