Littelfuse 201A-AU-OT 3-PH PLUG-IN VM/190-480V/ADJ.

Product Description

The Littelfuse 201A-AU-OT is a voltage monitoring relay designed for 3-phase applications. This model supports automatic ranging for dual voltage, operating between one hundred ninety to four hundred eighty volts at fifty or sixty hertz frequency. It features SPDT contact configuration, utilizes eight pins, and can be mounted on DIN rail or surface. With a trip delay range of one to thirty seconds, it is compact and efficient for various installation needs.

• Continuous monitoring of voltage levels for all phases
• Auto-sensing voltage range for simplified setup
• LED indicators for quick diagnostics

Product Highlights

This product provides reliable monitoring to prevent phase loss, low voltage, and high voltage conditions, enhancing the safety and efficiency of your electrical systems.

Product Information

Standard Information

• Manufacturer: Littelfuse
• MPN: 201A-AU-OT

Technical Specifications

• Contact Configuration: SPDT/(1 Form C)
• Dimensions: 1-3/4 in H x 2-3/8 in W x 4-1/8 in D
• Frequency Rating: 50/60 Hz
• Mounting Type: DIN Rail/Surface
• Number of Pins: 8
• Series: 201A-AU
• Trip Delay: 1 to 30 s
• Voltage Rating: 190 to 480 VAC