Heater Break (HB) alarm to diagnose partial or total load failure with automatic setting, relay alarm output and front LED indication. Available as an optionInternal quick-blow fuses as standardRS485 comms (Modbus Protocol) as standardInternal Current Transformer included as standardSpecial design Heatsink with high dissipation valueIP20 protectionComplies with CE specificationSuitable for Normal Resistance load typesCurrent range - 30A, 35A, 40A, 60A, 90A, 120A, 150A, 180A, 210ASupply voltage up to 480V, 600VacMicroprocessor based electronic circuit fully isolated from the powerThyristor Firing types include Zero Crossing FiringController input signals from Thermocouple, PT100 (3 wire RTD), 4-20mA and 0-10V DC LinearUp to 4 configurable Controller outputs (Relay, SSR and 4-20mA)