The AC/DC sensitive residual current monitor RCMA423AS is designed for use in earthed systems (TN and TT systems) where DC and AC fault currents may occur. These are in particular loads containing six-pulse rectifiers or one way rectifiers with smoothing, such as converters, battery chargers, construction site equipment with frequency-controlled drives.
Two separately adjustable response ranges allow to distinguish between prewarning (IΔn1 = 50…100 % of the set response value IΔn2) and alarm (IΔn2).
Since the values are measured with measuring current transformers, the RCMA423AS is nearly independent of the nominal voltage and the current of the system being monitored.
The AC/DC sensitive residual current monitor RCMA423AS is designed for use in earthed systems (TN and TT systems) where DC and AC fault currents may occur. These are in particular loads containing six-pulse rectifiers or one way rectifiers with smoothing, such as converters, battery chargers, construction site equipment with frequency-controlled drives.
Two separately adjustable response ranges allow to distinguish between prewarning (IΔn1 = 50…100 % of the set response value IΔn2) and alarm (IΔn2).
Since the values are measured with measuring current transformers, the RCMA423AS is nearly independent of the nominal voltage and the current of the system being monitored.
Type | Voedingsspanning | Response value | Art. Nr. |
---|---|---|---|
RCMA423AS-D-1 | AC 16…72 V, 42…460 Hz / DC 9.6…94 V | 100 mA…5 A / 0.....1000Hz | B 7404 3045 |
RCMA423AS-D-1 | AC 70...300 V, 42 ...460 Hz / DC 70....300 V | 100 mA…5 A / 0.....1000Hz | B 7404 3046 |
Type | Art. No. |
---|---|
Mounting clip for screw mounting (one piece per device) | B98060008 |
Mounting frame XM420 | B990994 |
Nom | Type | Taille | Langue | Horodatage | D-/B-Numéro |
---|---|---|---|---|---|
RCMA42x | Déclarations de conformité CE | 88.7 Ko | 2022/08/1212.08.2022 | ||
RCMA423AS | Notices | 375.7 Ko | EN | 2022/06/0909.06.2022 | D00157 |
Changed variants of relays from goldplated to silver-plated contacts | Informations techniques | 166.3 Ko | EN | 2022/06/2727.06.2022 | |
Geänderte Relaisvarianten von vergoldeten Kontakten auf versilberte Kontakte | Informations techniques | 166.3 Ko | DE | 2022/06/2727.06.2022 |