Chapter 2.2.1. – 6
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Residual Current Devices
• Line-voltage independent, all-current sensitive RCCB for fault or additional
protection with additional digital features
• System Monitoring: Preventive information / warning before the RCD trips
in case of leakage currents
– Integrated auxiliary contact
– Local Indication through 3 LEDs
• B+ types also meet the requirements of superior fire-protection systems
according to VDE 0664-400 (formerly known as VDE V 0664-110)
• 4-pole types can also be used as 2-pole devices for photovoltaic applica-
tions
• New level of accuracy -> reduced unwanted tripping
• No monthly test required
• Comprehensive range of accessories
• Real contact position indicator
• Fault current tripping indicator
• Automatic re-setting possible
• Transparent designation plate
SG49812
Residual Current Devices FRCdM Type B, B+ and Bfq Digital
