Symcom 201A-AU Symcom Phase Monitoring Relay
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Symcom 201A-AU Symcom Phase Monitoring Relay
Symcom 201A-AU Symcom Phase Monitoring Relay
Part #:201A-AU
SKU #: 2291458
Key Features
Part #:201A-AU
SKU #: 2291458
Brand: Littelfuse
Contact Configuration: Form C
Dimensions: 1.75 in H x 2.38 in W x 4.13 in D
Frequency Rating: 50/60, 50/60 Hz
Series: 201A-AU
Voltage Rating: 190 to 480, 190 to 480 VAC
- 12 to 22 AWG wire
- Stranded/solid wire
- -40 to 70 deg C operating temperature
- 12 in-lb torque
- Constant monitoring of loss of any phase, low voltage, high voltage, voltage unbalance, phase reversal, rapid cycling, harmful power line conditions
- Allows flexibility in panel installation
- Automatically senses system voltage between 190 - 480VAC. saves setup time
- Quick visual indicator for cause of trip and relay status
- Allows compatibility with a variety of motors and reduces nuisance tripping
- Prevent nuisance tripping due to rapidly fluctuating power line conditions
Symcom 201A-AU Symcom Phase Monitoring Relay
Littelfuse Symcom Phase Monitoring Relay, Series: 201A-AU, 190 to 480 VAC, 50/60 Hz Frequency, Form C Contact Configuration, DIN Rail Mounting, 1.75 in H x 2.38 in W x 4.13 in D Dimensions
Additional Description: LTFS-201-A-AU PROTECTION RELAY
Catalog Description: 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.