JVM-1 Phase sequence relay

JVM-1 Phase Sequence Relay Product Description‌

The ‌JVM-1 Phase Sequence Relay‌ is a precision-engineered protection device designed to secure three-phase electrical systems by continuously monitoring phase sequence, phase loss, and voltage imbalance. It safeguards critical equipment such as motors, pumps, compressors, and HVAC systems from damage caused by incorrect phase rotation, voltage asymmetry, or power supply disruptions. Ideal for industrial, commercial, and renewable energy applications, it ensures operational reliability and minimizes unplanned downtime.

With a ‌wide voltage range (110-480V AC)‌ and ultra-fast response time (<40ms), the JVM-1 detects phase reversal, single-phasing, and voltage imbalances (up to ±20%) with exceptional accuracy. Its ‌IP67-rated, ruggedized enclosure‌ provides superior protection against dust, water ingress, and extreme temperatures (‌-25°C to +75°C‌), making it suitable for harsh environments. The relay features SPDT contacts (‌8A @ 250V AC‌) for seamless integration into control circuits, alarms, or automated shutdown systems. ‌LED status indicators‌ offer real-time visibility into phase sequence, power supply health, and fault conditions, simplifying troubleshooting and maintenance.