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LINETRAXX® CMD420/CMD421

LINETRAXX® CMD420/CMD421
6Pages

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LINETRAXX® CMD420/CMD421 Current monitoring devices for monitoring 3AC currents for overcurrent and undercurrent using measuring current transformers or current monitoring with window discriminator function

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Current monitoring devices LINETRAXX® CMD420/CMD421 Current monitoring devices for monitoring 3AC currents for overcurrent or undercurrent using measuring current transformers or with window discriminator function Product description The CMD420/421 current monitoring devices monitor AC currents using three measuring inputs for overcurrent, undercurrent or undercurrent and overcurrent (window discriminator function). The currents are measured as r.m.s. values (AC). The currently measured values are continuously shown on the LC display. The respective measuring channel can be selected using...

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Current monitoring devices LINETRAXX® CMD420/CMD421 Operating elements 1 - ower On LED “ON” (green); lights when supply voltage is applied P and flashes in the event of system fault alarm 2 - larm LED “AL1” (yellow): lights when the value exceeds or A falls below the set response values and flashes in the event of system fault alarm 3 - larm LED “AL2” (yellow): lights when the value exceeds or A falls below the set response values and flashes in the event of system fault alarm 4 - Multi-functional LC display 5 - est button “T”: T A rrow up button: To change the measured value display, move...

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Current monitoring devices LINETRAXX® CMD420/CMD421 Technical data Insulation coordination acc. to IEC 60664-1/IEC 60664-3 Time response CMD420… Rated insulation voltage AC 250 V Rated impulse voltage/pollution degree 6 kV/3 Protective separation (reinforced insulation) between (A1, A2) -(k, l) -(11, 12, 14) -(21, 22, 24) Protective separation (reinforced insulation) between (k1, l1, k2, l2, k3, l3) -(11, 12, 14) Voltage test acc. to IEC 61010-1 3.536 kV CMD421… Rated insulation voltage AC 250 V Rated impulse voltage/pollution degree 4 kV/3 Basic insulation between: (k1, l1, k2, l2, k3, l3)...

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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 UL94 V-0 IEC 60715 2 x M4 with mounting clip D00101 ≤ 150 g ( )* = factory setting Ordering information Suitable for...

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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 • info@bender.de • www

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LINETRAXX® CMD420/CMD421 6Pages

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LINETRAXX® CMD420/CMD421
6Pages