DIN rail or surface mount (plug into OT08-PC socket)
Operating Temperature
-40° to 70°C (-40° to 158°F)
Storage Temperature (F/C)
-40° to 80°C (-40° to 176°F)
Humidity
10 - 95% non-condensing per IEC 68-2-3
Dimensions
1.75 H x 2.38 W x 4.13 D in. (44.5 x 60.3 x 104.8 mm)
Series Features
201A-AU Series - 3-Phase Voltage/Phase Monitor
Series Description:The 201A-AU series is a three-phase, auto-ranging, dual-range voltage monitor that protects 190480 V ac, 50/60 Hz motors regardless of their size. This monitor provides a user-selectable nominal voltage setpoint and will automatically select between the 200 V and 400 V range. Additional adjustment knobs allow the user to set a 130 second trip delay, a manual restart or 1500 second restart delay, and a 28% voltage unbalance trip point. It includes advanced, single LED diagnostics where color and light patterns distinguish between faults and normal conditions. This unique microcontroller- based voltage and phase-sensing unit constantly monitors the three-phase voltages to detect harmful power line conditions. When a harmful condition is detected, the output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to acceptable levels for a specified restart delay time (or manual reset).
Series Applications:Fan motors, Air conditioners, Compressors, Heat, well, and sump pumps, Small conveyer motors
Proprietary microcontroller-based circuitry: Constant monitoring of loss of any phase, low-voltage, high-voltage, voltage unbalance, phase reversal, harmful power line conditions
Auto-sensing wide voltage range: Automatically senses system voltage between 190480 V ac. Saves setup time
Advanced LED diagnostics: Quick visual indicator for cause of trip
Compact design for 8-pin; DIN-rail or surface mount: Allows flexibility in panel installation
Adjustable voltage unbalance trip setting: Allows compatibility with a variety of motors and reduces nuisance tripping
Adjustable trip and restart delay settings: Prevents nuisance tripping due to rapidly fluctuating power line conditions.
