YYI-4 Current Detection Sensing Module Overcurrent Protection Relay Module 7-30V 0-30A DC

Function description: P-11: When the measured current > I1 (low limit current), the relay closed; When the measured current < I1, the relay opens; P-12: When the measured current > I1, the relay closes; Maintain the state until the circuit board power off; P-21: When the measured current > I2 (high limit current), the relay closes; When the measured current < I1, the relay opens; P-22: When the measured current > I2, the relay closes; Maintain the state until the circuit board power off; P-31: When measured < I1, the relay closes; When the current > I2, the relay opens; P-32: When the measured current < I1, the relay closes; Maintain the state until the circuit board power off; P-41: When the measured current is between I1 and I2, the relay closes, opens in other cases; P-42: When the measured current is between I1 and I2, the relay closes; Maintain the state until the circuit board power off; P-51: When the measured current < I1 or > I2, the relay closes, opens in other cases; P-52: When the measured current < I1 or > I2, the relay closes; Maintain the state until the circuit board power off.