50R4002 | 1-PHASE VOLTAGE MONITOR/ 380-4 Pack of 10 | Littelfuse

**Littelfuse NCO-50R4002: 1-Phase Voltage Monitor** The Littelfuse NCO-50R4002 is an industrial-grade voltage monitor designed to protect critical equipment from voltage fluctuations. It features a voltage range of 380-480VAC, making it suitable for single-phase power systems. The device monitors voltage levels continuously and triggers an alarm or disconnects power if the voltage falls outside the preset limits. **Key Features and Benefits:** * **1-Phase Voltage Monitoring:** Monitors AC voltage in single-phase systems. * **Adjustable Voltage Thresholds:** Allows customization of voltage limits to suit specific equipment requirements. * **LED Indicators:** Provides visual status of voltage levels and alarm conditions. * **Delay Timer:** Programmable delay to prevent nuisance trips caused by voltage spikes or transients. * **Compact Design:** Saves space in electrical panels and enclosures. **Applications:** The NCO-50R4002 is ideal for protecting sensitive electronic equipment in industrial, manufacturing, and data center environments where voltage fluctuations can cause damage or downtime. It is commonly used in: * Motor control systems * Power distribution panels * Control circuits * Process monitoring equipment **Conclusion:** Protect your critical equipment and ensure uninterrupted operation with the Littelfuse NCO-50R4002 voltage monitor. Its reliable performance and adjustable features make it a valuable investment for maintaining the integrity of your electrical systems. Order yours today from our HVAC supply store for the best prices and fast shipping!