Littelfuse 201A-AU 3-Phase Plug-In Voltage Monitor 190-480VAC

Product Description

The Littelfuse 201A-AU is an advanced 3-phase voltage monitoring device designed for industrial applications. It automatically adjusts to system voltages from 190 to 480 volts AC, ensuring reliable operation across a broad range of power supplies.

• Monitors voltage and phase conditions to detect abnormalities
• Features adjustable voltage and delay settings to suit specific needs
• Compact, DIN rail mountable design for easy installation

Product Highlights

Equipped with a microcontroller, the 201A-AU provides continuous monitoring and swift response to voltage anomalies. The output relay deactivates and reactivates based on voltage conditions to protect connected equipment.

Product Information

Standard Information

• Brand: Littelfuse
• Model: 201A-AU

Technical Specifications

• Input Voltage: 190-480 VAC
• Operating Temperature: -40 to 158 degrees F
• Weight: 0.3 lbs
• Mounting Type: DIN Rail
• Frequency Ratings: 50/60 Hz
• Dimensions: 1.75 in H x 2.38 in W x 4.13 in D
• Special Features: Automatic Voltage Sensing