DOLD UG 9431 – DC voltage relay, for Modbus
DC voltage relay, for Modbus
- Simple parameterization, monitoring and diagnosis
- Compact design
- Large measuring range DC 20 … 1000 V
- Min-, Max-value or window monitoring
- Early detection of irregularities
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Monitoring devices
273 products
DOLD UG 9443 – Mains frequency monitor, for Modbus
Mains frequency monitor, for Modbus
- Simple parameterization, monitoring and diagnosis
- Compact design
- Universal measuring input for AC voltages from AC 24 … 690 V
- Auxiliary voltage ranges AC/DC 24 … 240 V
- Early detection of irregularities
DOLD UG 9831 – DC voltage relay
DC voltage relay
- Preventive maintenance
- For better productivity
- High repeat accuracy
- Wide measuring range DC 20 … 1000 V
- Easy setting
DOLD UH 5892 – Insulation monitor
Insulation monitor
- Preventive fire and system protection
- Insulation monitoring of DC voltage systems up to 600 V nominal voltage
- No additional coupling device required
- Suitable for leakage capacitances up to 20 μF
- Monitoring also with voltage-free mains
DOLD UH 9830 – Battery symmetry monitor
Battery symmetry monitor
- Preventive maintenance
- For better productivity
- High repeat accuracy
- Large battery voltage ranges up to DC 1000 V
- Easy setting
DOLD UP 5862 – Test and Indication Panel
Test and Indication Panel
DOLD UP 5864 – Test and Indication Panel
Test and Indication Panel
- Simple and easy to recognise signalling of mains status for applications according to DIN VDE 0100-710
- Audible and visible alarm
ZANDER AACHEN DHC Motor Protection Relay
The DHC motor protection relay is a temperature monitoring relay for electro motors.
ZANDER AACHEN ENQ4 Fault Indicator System
The electronic ENQ4 fault indicator system offers a complete fault indicator unit for recording unapproved operating conditions such as excessive pressure or excessive temperature in a compact design. ENQ are successfully used with compressors, automatic production machines, vehicles, heating systems and air-conditioners. The collective alarm contact is enabled as soon as a fault alarm input opens.