电流保护继电器ELR-52AS

接地漏电 交流 导轨

ELR-52AS双通道剩余电流保护继电器。门闩继电器。事件日志。RS485网络通讯协议。接地差动继电器有2个相关环形传感器输入，测量电气装置中的泄漏电流，以检测可能有害的水平。理想的保护或报警，该产品提供多种设置。2个继电器输出(双稳态)，每个输出1个转换触点。RS485 & egrave;可用。非易失性存储器维持继电器的跳闸状态。 Introduction Range ELR Product name ELR-52AS Product type Residual current protection relay Current sensors compatibility CT-1 earth leakage current sensor Technical characteristics Application Residual current protection relay Supply voltage 110-230 VAC 50/60Hz 24/48 VAC/DC (optional) Power consumption 6 VA Display type Backlight LCD (red TRIP) Backlight LCD (yellow ALARM) Type of measurement True RMS Earth fault current internal measurement Toroidal channel inputs 2 Residual earth-leakage adjustment 0,030...5 A Residual earth-leakage time delay adjustment 20...500 ms Alarm threshold setting 50...90% Earth-leakage protection class Typo A super immunized Filter 3rd harmonic filter selectable Test function Local Remote test Output relays 2 independent (latch relay) 5 A (240 VAC) Configurable normally de-energised or energised MEMORY function Non-volatile memory retains the trip status of the relay. If tripped, and the supply voltage disappeared, the ELR-51AS will remain tripped at power on, with the trip relay energized and the TRIP LED on, until reset. Display indications Green LED (power ON) Red LED (TRIP) LED OK (System healthy) Communication port RS485 (optional)