LINETRAXX® RCM420 Residual current monitor for AC current monitoring in TN and TT systems

Residual current monitor for AC current monitoring in TN and TT systems Intended use The AC and pulsed DC sensitive residual current monitor RCM420 (Type A) from Bender is designed for fault and residual current monitoring in earthed power supply systems (TN/ TT systems) where an alarm is to be activated in the event of a fault, but disconnection must be prevented. In addition, the device can be used to monitor single conductors, such as PE conductors, N-PE connections and PE-PAS connections. Two separately adjustable response ranges IΔ1 and IΔ2 allow to distinguish between prewarning and main...

Connect the device according the wiring diagram.

Insulation coordination acc. to IEC 60664-1/IEC 60664-3 Specified time RCM420-D-1 Rated insulation voltage 100 V Overvoltage category/pollution degree 111/3 Rated impulse voltage 2.5 kV Rated insulation voltage 250 V Overvoltage category/pollution degree MI/3 Rated impulse voltage 4 kV Supply voltage Starting delay t Response delay ton1 (prewarning) Response delay ton2 (main alarm) Delay on release toff Operating time tae at /4n = 1 x /41/2 Operating time tae at/4n = 5 x /41/2 Response time tan Recovery time tb Number of reload cycles Supply voltage range Us Operating range Us Frequency range...

Classification of climatic conditions IEC 60721 (except condensation and formation of ice) Classification of mechanical conditions acc. to IEC 60721 Option "W" data different from the standard version Classification of climatic conditions acc. to IEC 60721 (condensation and formation of ice is possible) Classification of mechanical conditions acc. to IEC 60721 Operating mode continuous operation Position of normal use display oriented Protection class, internal components (IEC 60529) IP30 Protection class, terminals (IEC 60529) IP20 Enclosure material polycarbonate Screw mounting 2 x M4 with...

Ordering information © Bender GmbH & Co. KG, Germany Subject to change! The specified standards take into account the edition valid until 09.2024 unless otherwise indicated. RBENDERBender GmbH & Co. KG Londorfer StraGe 65 35305 Grunberg Germany