Current monitoring devices for monitoring 3AC currents for overcurrent and undercurrent using measuring current transformers or current monitoring with window discriminator function

Current monitoring devices LINETRAXX® CMD420/CMD421 Z BENDER LINETRAXX® CMD420/CMD421 Current monitoring devices for monitoring 3AC currents for overcurrent or undercurrent using measuring current transformers or with window discriminator function Device features • Undercurrent and overcurrent monitoring in AC systems, current monitoring with window discriminator function • Current monitoring using standard current transformers: • Two separately adjustable alarm relays with one changeover contact each (K1, K2) • Fault memory behaviour for the alarm relays selectable • Digital measured value display...

Current monitoring devices LINETRAXX® CMD420/CMD421 1 - Power On LED "ON" (green); lights when supply voltage is applied and flashes in the event of system fault alarm 2 - Alarm LED "AL1" (yellow): lights when the value exceeds or falls below the set response values and flashes in the event of system fault alarm 3 - Alarm LED "AL2" (yellow): lights when the value exceeds or falls below the set response values and flashes in the event of system fault alarm Arrow up button: To change the measured value display, move upwards in the menu or to change parameters. To call up the self test: press the...

Current monitoring devices LINETRAXX® CMD420/CMD421 Z BENDER Technical data CMD420... Rated insulation voltage AC 250 V Rated impulse voltage/pollution degree 6 kV/3 CMD421... Rated insulation voltage Rated impulse voltage/pollution degree Basic insulation between: Basic insulation between: Time response Start-up delay t Response delay ton1 Response delay ton2 Delay on release toff Resolution of setting t, ton1/2, toff (0.10 s) Resolution of setting t, ton1/2, toff (10.99 s) Resolution of setting t, ton1/2, toff (100.300 s) Device release time tre Release time toff Supply voltage Supply voltage...

Current monitoring devices LINETRAXX® CMD420/CMD421 Connection Connection properties rigid flexible without ferrules with ferrules Stripping length Opening force Test opening, diameter Other Operating mode Mounting Degree of protection, internal components (IEC 60529) Degree of protection, terminals (IEC 60529) Enclosure material Flammability class DIN rail mounting acc. to Screw mounting Documentation number Weight continuous operation any position IP30 IP20 polycarbonate UL94V-0 IEC 60715 2 x M4 with mounting clip D00101 < 150 g Ordering information Dimension diagram XM420 Dimensions in mm

BENDER Group CMD420-421_D00101_02_D_XXEN / 01.2022 / © Bender GmbH & Co. KG, Germany – Subject to change! The specified standards take into account the edition valid until 01.2022 unless otherwise indicated. Bender GmbH & Co. KG Londorfer Straße 65 • 35305 Grünberg • Germany Tel.: +49 6401 807-0 • [email protected] • www