SPAJ 111 C Sensitive Earth-Fault Relay Product Guide

This product guide describes the ABB SPAJ 111 C sensitive earth-fault relay, which provides low-set and high-set neutral overcurrent protection with definite time characteristics. It is designed for applications such as feeder earth-fault protection, generator interturn fault protection, capacitor bank unbalance protection, and rotor earth-fault protection, featuring low input impedance for use with core-balance current transformers.