Description
The Littelfuse 460L-OEM is a compact, microcontroller-based three-phase voltage monitoring relay built to protect motors and electrical systems across a wide 190–480V AC operating range. Continuously scanning line conditions, it detects phase loss, phase reversal, undervoltage, overvoltage, and voltage imbalance before they cause costly equipment damage. When a fault is detected, the relay output de-energizes after a fully adjustable trip delay, then automatically resets once stable voltage is confirmed following a programmable restart delay — eliminating the need for manual intervention.
Engineered for OEM integration, the 460L-OEM fits seamlessly into equipment manufacturers’ control panels and system builds, delivering dependable motor protection in a simplified, cost-effective form factor. It is well suited for motors, compressors, pumps, HVAC systems, and other critical three-phase loads in demanding industrial environments.
Key Features
- 190–480V AC three-phase voltage monitoring range
- Detects phase loss, phase reversal, and voltage imbalance
- Protects against undervoltage and overvoltage conditions
- Adjustable trip delay (1–30 seconds) and restart delay (1–500 seconds)
- OEM form factor designed for seamless equipment and panel integration
- Microcontroller-based monitoring for precise, reliable fault detection
- Ideal for motors, compressors, pumps, and HVAC systems
- Reduces unplanned downtime and prevents costly motor damage
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