201A-AU-OT
Littelfuse®* Actual product may vary from image
The 201A-AU is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50/60Hz motors regardless of size. Has user adjustable 1-30 second trip delay, manual or 1-500 second restart delay, and 2-8% voltage unbalance trip point. The product also provides a user selectable nominal voltage setpoint and the voltage monitor automatically selects between the 200V and 400V range. The Model 201A-AU includes advanced single LED diagnostics, where five different light patterns distinguish between faults and normal conditions. This unique microcontroller-based voltage and phase-sensing device constantly monitors the 3-phase voltages to detect harmful power line conditions. When a harmful condition is detected, the 201A-AU's output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to acceptable levels.
Details
MFG PART #:201A-AU-OT
McMc Part #:LITT201AAUOT
UPC #:079458990249
Inventory
$218.45 E
Details
MFG PART #:201A-AU-OT
McMc Part #:LITT201AAUOT
UPC #:079458990249
Inventory
Attributes
Features
Documentation
Attributes
Brand:Littelfuse®
ETIM:EC001438
Type:3-Phase Auto Ranging Dual Range
Series:201A-AU
Voltage Rating:190 to 480 VAC
Frequency Rating:50/60 Hz
Contact Configuration:SPDT/(1 Form C)
Number Of Pins:8
Mounting Type:DIN Rail/Surface
Trip Delay:1 to 30 s
Dimensions:1-3/4 in H x 2-3/8 in W x 4-1/8 in D
Features
Proprietary microcontroller based circuitry, constant monitoring of loss of any phase, low voltage, high voltage, voltage unbalance, phase reversal, rapid cycling, harmful power line conditions |
Compact design for 8-pin DIN rail or surface mount, allows flexibility in panel installation |
Auto-sensing wide voltage range, automatically senses system voltage between 190 to 480 VAC, saves setup time |
Advanced LED diagnostics, quick visual indicator for cause of trip |
Adjustable voltage unbalance trip setting, allows compatibility with a variety of motors and reduces nuisance tripping |
Adjustable trip & restart delay settings, prevent nuisance tripping due to rapidly fluctuating power line conditions |