The software incorporates an option for two adjustable alarms. A new IP 66 polyester, fibre glass reinforced housing is now available. It is available in three sizes from 250 to 6,300 amps and protects against short circuit currents up to 150,000 amps. The circuit breaker s internal system bus, the Cubiclebus, links all intelligent components. External auxiliary modules can add digital inputs and outputs as well as analogue outputs to expand the circuit-breaker.
Communication covers the transfer of the circuit-breaker s current status.
Remote functions include reading and setting parameters, control, diagnostics, and testing. Without any additional software, circuit-breaker data are displayed and modified from an Internet browser. They are based on the analyser technology used in Yokogawa s field-mountable EXA Series of instruments, with the addition of enhanced diagnostic features and a unique touchscreen interface with backlit display. Each has a mA output for PID control, and two relay contacts for alarms or control signals with frequency or pulse width modulating switching. HART communications is included as standard.