Description
The Littelfuse PLS240A reverse phase relay is designed to protect three‑phase motors and electrical systems from harmful phase sequence and phase loss conditions. It continuously monitors the order and presence of all three phases and activates its output relay when a reverse phase, phase loss, or phase imbalance condition is detected. This helps prevent damage to motors, compressors, pumps, and other three‑phase equipment that can occur when power is applied with incorrect phase rotation. Built for reliable operation in industrial environments, the PLS240A enhances system safety and longevity by ensuring equipment only runs under correct phase conditions.
Key Features:
- Detects reverse phase (incorrect rotation) in three‑phase systems
- Protects against phase loss and phase imbalance conditions
- Output relay actuates when an abnormal phase condition is detected
- Ideal for motors, compressors, pumps, and other three‑phase equipment
- Helps prevent mechanical damage and premature wear
- Compact relay design for panel mounting
- Reliable performance for industrial and commercial applications







Reviews
There are no reviews yet.