Device description
14
RCMB300-series_D00372_01_M_XXEN/06.2019
• Separate evaluation of the AC and DC components as well as the r.m.s. value of the
residual current possible
• Exchangeable electronic enclosure without mechanical separation of the primary
conductors
• Extension/retrofitting or modification of functionalities in case of changed moni-
toring requirements
• Insensitive to load currents due to full magnetic shield (CTBC…P only)
• Connection monitoring of the measuring current transformer with cyclical test cur-
rent
• Use of the RCMB301 for all CTBC… measuring current transformer sizes
• Supply voltage DC 24 V
3.3 Variants
Electronic modules
• RCMB301
Type B modular residual current module acc. to IEC 60755
Measuring current transformers
• CTBC20 Measuring current transformer, internal diameter 20 mm
• CTBC20P Measuring current transformer shielded, internal diameter 20 mm
• CTBC35 Measuring current transformer, internal diameter 35 mm
• CTBC35P Measuring current transformer shielded, internal diameter 35 mm
• CTBC60 Measuring current transformer, internal diameter 60 mm
• CTBC60P Measuring current transformer shielded, internal diameter 60 mm
• CTBC120 Measuring current transformer, internal diameter 120 mm
• CTBC120P Measuring current transformer shielded, internal diameter 120 mm
• CTBC210 Measuring current transformer, internal diameter 210 mm
• CTBC210P Measuring current transformer shielded, internal diameter 210 mm