URP 1439TU 72… 250VAC/VCC 5A RS485 NA 50/60HZ NCM: 85364900 MULTIFUNCTION PROTECTION (CURRENT + VOLTAGE) WITH RESET BY VOLTAGE AND/OR FREQUENCY, OSCILLOGRAPHY, LOAD PROFILE AND MASS MEMORY. CAPACITIVE SOURCE AND CAPACITIVE TRIP. FRONT PANEL WITH LED DISPLAYS, SIGNALING LEDS AND PROGRAMMING/ TEST/ RESET KEYS. REMOVABLE RELAY TO QUENTE (SHORT- CIRCUIT OS TCS). FRONT RS232 SERIAL PORT AND REAR RS485 WITH MODBUS RTU COMMUNICATION PROTOCOL. FREE APPLICATION SOFTWARE FOR PARAMETERISATION, MONITORING, OSCILLOGRAPHY COLLECTION AND MASS MEMORY ACCESS.