The GM420 series loop monitor is designed to monitor the resistance of PE conductor connections in AC systems and in de-energised systems. The extraneous voltage Uf between the terminals E and KE must not exceed AC 12 V. The ohmic resistance of the conductor loop and the AC extraneous voltage Uf, if existing, will be indicated on the display. The currently measured value is continuously indicated on the LC display. If the measured resistance value increases above the set response value, the alarm will be activated and stored. Adjustable time delays allow installation-specific requirements to be considered.
The GM420 series loop monitor is designed to monitor the resistance of PE conductor connections in AC systems and in de-energised systems. The extraneous voltage Uf between the terminals E and KE must not exceed AC 12 V. The ohmic resistance of the conductor loop and the AC extraneous voltage Uf, if existing, will be indicated on the display. The currently measured value is continuously indicated on the LC display. If the measured resistance value increases above the set response value, the alarm will be activated and stored. Adjustable time delays allow installation-specific requirements to be considered.
Type | Measuring range Loop resistance | Measuring range Interference voltage | Supply voltage US | Art. No.* |
---|---|---|---|---|
GM420-D-1 | 0…100 Ω | AC 0…50 V | DC 9,6 V…94 V / AC 16…72 V, 15…460 Hz | B73082001 B93082001 |
GM420-D-2 | 0…100 Ω | AC 0…50 V | DC 70…300 V / AC 70…300 V, 15…460 Hz | B73082002 B93082002 |
*(B7… = push-wire terminal / B9… = screw-type terminal)
Type | Art. No. |
---|---|
Mounting clip for screw mounting (one piece per device) | B98060008 |
Mounting frame XM420 | B990994 |
Nome | Tipo | Dimensione | Lingua | Timestamp | D-/B-Numero |
---|---|---|---|---|---|
GM420 | Quickstarts | 611.1 KB | DE | 2023/10/0505.10.2023 | D00112 |
GM420 | Quickstarts | 611.1 KB | EN | 2023/10/0505.10.2023 | D00112 |
GM42x | Dichiarazioni di conformità CE | 87.0 KB | 2022/08/1212.08.2022 | ||
GM420 | Manuali di istruzioni | 1.8 MB | DE | 2023/10/1111.10.2023 | D00112 |
GM420 | Manuali di istruzioni | 2.0 MB | EN | 2023/10/1111.10.2023 | D00112 |
GM420 | Data sheet | 319.1 KB | DE | 2019/05/1313.05.2019 | D00112 |
GM420 | Data sheet | 273.6 KB | EN | 2019/05/1313.05.2019 | D00112 |
GM420 | Data sheet | 275.5 KB | ES | 2019/05/1313.05.2019 | D00112 |
GM420 | Data sheet | 509.9 KB | ZH | 2019/05/1313.05.2019 | D00112 |
Changed variants of relays from goldplated to silver-plated contacts | Technical information | 166.3 KB | EN | 2022/06/2727.06.2022 | |
Geänderte Relaisvarianten von vergoldeten Kontakten auf versilberte Kontakte | Technical information | 166.3 KB | DE | 2022/06/2727.06.2022 |