QCB-101 Relay

Product Overview

Phase and ground (E)/ fault (F) overcurrent protection
Transformer high-temperature/over-temperature protection
Records: Faults (200), Events (200), Operation Records (200), Logs (200)
Three setting groups (HMI/ upper computer /RS485)
Second harmonic surge louckout
Circuit breaker control is carried out via RS485/HMI/ USB Type-C input and local/remote mode
USB Type-C: program upgrade
RS485 interface: Modbus,IEC60870-101 , IEC60870-103
Various optional functions can be selected in different situation:                  

 Low-temperature screen: AC/DC auxiliary voltage selection
More additional local or remote control input amounts (up to 8)

Product Features

High reliability and adaptability

Robust design, the protection level of front panel can reach IP54

Can keep stable operating under 40A and 540V situation

Wide power supply voltage support: D1 type :18-75VDC; D2 type: AC/ DC universal 85-305 VAC/120-430VDC