Novatek-UBZ-302-Universal-3-Phase-Motor-Protection-Relay-Novatek-UBZ-302-P-The-Novatek-UBZ-302-is-a-microprocessor-based-digital-device-that-provides-protection-for-3-phase-motors-No-external-power-supply-is-required-as-the-unit-uses-the-same-power-supply-as-the-motor-It-has-been-designed-to-work-in-3-phase-electric-circuits-with-or-without-an-isolated-neutral-connection-allowing-operation-in-both-in-3-&-4-wire-circuits-P-P-The-UBZ-302-has-3-built-in-current-measurement-transformers-