The voltage relays of the VME421H series are designed to monitor the frequency, undervoltage, overvoltage and the voltage between two threshold values (window discriminator function) in AC and DC systems. The voltages are measured as r.m.s. values. The currently measured value is continuously shown on the LC display. The measured value leading to the activation of the alarm relays will be stored. Due to adjustable response times, installation-specific characteristics, such as device-specific start-up procedures, short-time voltage fluctuations, etc. can be considered. Device version VME421H takes the supply voltage from the system being monitored and utilizes an internal energy backup.
The voltage relays of the VME421H series are designed to monitor the frequency, undervoltage, overvoltage and the voltage between two threshold values (window discriminator function) in AC and DC systems. The voltages are measured as r.m.s. values. The currently measured value is continuously shown on the LC display. The measured value leading to the activation of the alarm relays will be stored. Due to adjustable response times, installation-specific characteristics, such as device-specific start-up procedures, short-time voltage fluctuations, etc. can be considered. Device version VME421H takes the supply voltage from the system being monitored and utilizes an internal energy backup.
Type | Nominal system voltage Un* | Response value | Art. No.** |
---|---|---|---|
VME421H-D-1 | DC 9,6…150 V / AC 9,6…150 V, 15…46 Hz | AC/DC 9,6…150 V | B73010003 B93010003 |
VME421H-D-2 | DC 70…300 V / AC 70…300 V, 15…460 Hz | AC/DC 70…300 V | B73010004 B93010004 |
* absolute values
**(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 |
Category | Name | Size | Language | Timestamp | D-/B-Number |
---|---|---|---|---|---|
Declarations of Conformity | UKCA - VMx42x | 141.7 KB | 2022/12/20 06:00:2220.12.2022 06:00:22 | ||
CE Declarations of conformity | VMx42x | 93.7 KB | 2022/11/04 09:31:2004.11.2022 09:31:20 | ||
Manuals | VME421H | 2.2 MB | DE | 2019/05/13 10:31:4513.05.2019 10:31:45 | D00141 |
Manuals | VME421H | 2.1 MB | EN | 2019/05/13 10:31:5213.05.2019 10:31:52 | D00141 |
Manuals | VME421H | 452.3 KB | ES | 2019/05/13 10:31:5413.05.2019 10:31:54 | D00141 |
Datasheets | VME421H | 414.9 KB | DE | 2021/12/23 12:52:1023.12.2021 12:52:10 | D00141 |
Datasheets | VME421H | 409.2 KB | EN | 2022/08/10 05:51:4410.08.2022 05:51:44 | D00141 |
Datasheets | VME421H | 394.3 KB | ES | 2021/12/23 12:53:1423.12.2021 12:53:14 | D00141 |
Datasheets | VME421H | 540.1 KB | ZH | 2019/05/13 10:31:3313.05.2019 10:31:33 | D00141 |
Datasheets | XM420-Schnittstellenoptionen | 264.1 KB | DE | 2019/05/13 10:31:3513.05.2019 10:31:35 | |
Datasheets | XM420 interface options | 223.5 KB | EN | 2019/05/13 10:31:3613.05.2019 10:31:36 | D00051 |