The PGR-5330 advanced ground-fault and resistor-monitoring relay provides both ground-fault detection and continuous monitoring of the neutral-to-ground path to ensure the integrity of the resistor
The PGR-5330 is an advanced ground-fault and resistor monitoring relay that measures neutral current, neutral-to-ground voltage, and neutral resistance. The device also provides continuous monitoring of the neutral-to-ground path to ensure the neutral-grounding resistor (NGR) is intact. In addition, the relay is communications enabled with a standard RS-232 interface and optional DeviceNet, Profibus, and Ethernet ports. For more information: www.littelfuse.com/products/Protection+Relays/Ground+Fault+Relays/PGR-5330.html
