Description
VMR 145-500 VAC, Digital Voltage Three-phase Voltage Monitoring Relay
Description
The VM800 is a three-phase voltage monitor that protects 3-wire and 4-wire motors from 145 Vac to 500 Vac regardless of
their size. This voltage monitor will detect under-voltage, over-voltage, frequency drift, phase loss, phase sequence, phase
asymmetry, and neutral failure. Users can configure trip and restart delays and individual faults can be enabled or disabled for
each output relay. A digital LCD display provides real-time monitoring and fault visibility, along with the ability to review the
last five faults. Password protection is available as a standard feature. Additionally, the device can be mounted on a DIN-rail,
making it a versatile choice for various applications
- LCD display with green backlight
- Multi-Voltage: 3 Phase 4 Wire and 3 Phase 3 Wire at 145-500 Vac
- Protection against Phase Loss, Phase Sequence, Phase Asymmetry, Under-voltage, Over-voltage, Neutral open,Over frequency and Under frequency
- Selectable Over-voltage / Under-voltage, Asymmetry, Phase loss, Phase sequence, Over frequency / Underfrequency
- Improved accuracy and high reliability
- Clear indication of trip status
- Adjustable ON / OFF time delay in seconds / minutes
- 5 A single and dual relay outputs
- Two separate relay outputs with independent programming
- Password protection
VM800-20-20 | VM800 Series Voltage-Monitoring Relays | Littelfuse
