Protection features
max. kW
 200kW dump loads, + custom extensions
Display and Keypad
 for configuration
Line noise filter
 for additional protection of the MCU
3 Phase
Temperature monitoring
 Triac, SSR, casing, heat sink, air temperatures
Emergency fail mode
 H/W all DLs on, in case of MCU fail
USB programming
 if no USB, then ICSP programmer for firmware update needed
2nd redundant Power supply
 if dumpload fail is a critical safety issue
Remote connectivity (mobile phone, ethernet)
Auxiliary relays  
Additional analog inputs
DC monitoring
 e.g. 12V or 24V battery system
Local connectivity to other controller devices
 e.g. AVR
Dump load fault check