Residual current block Vigi NG125, 3P, 125A, 30mA, Type A, SI. Product or component type: Earth fault auxiliary block - Device short name: Vigi NG125 - Poles description: 3P - Network type: AC - Network frequency: 50/60 Hz - Earth fault sensitivity: 30mA - Earth fault protection time delay: instantaneous - Earth fault protection class: Class SI.