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Littelfuse - 201A - 201A - Phase Monitoring Relay, 201A Series, SPDT, 10 A, Socket, Quick Connect, 240 VAC

  • MFR SKU: 201A
  • ITEM #: 11425991
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ITEM #: 11425991
201A - SymCom 3-Phase Plug-In Voltage Monitor 190-480V
The Model 201A Family
A 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage setpoint and the voltage monitor automatically selects between the 200V and 400V range. The Model 201A includes advanced single LED diagnostics, where five different light patterns distinguish between faults and normal conditions.
This...
ITEM #: 11425991
201A - SymCom 3-Phase Plug-In Voltage Monitor 190-480V
The Model 201A Family
A 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage setpoint and the voltage monitor automatically selects between the 200V and 400V range. The Model 201A 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 MotorSaver's output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to acceptable levels.
Features :
  • Low voltage trip
  • Single-phase trip
  • Reverse-phase trip
  • Fixed 6% voltage unbalance trip
  • Single LED diagnostics
  • Optional high voltage trip
  • 8-pin plug-in; DIN rail or surface mount
  • Separate indicators for:
    • Power-up restart delay
    • Reverse-phase trip
    • Good voltage/relay energized
    • Unbalance/single-phase trip
    • High/low voltage trip

Auxiliary Products:
  • 8-pin octal socket: P/N: CT0T08-PC
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Littelfuse - 201A - 201A - Phase Monitoring Relay, 201A Series, SPDT, 10 A, Socket, Quick Connect, 240 VAC

  • Item #: 11425991
  • MFR SKU: 201A
Technical Specs
  • 2.38 INCH WIDTH X 4.13 INCH DEPTH X 1.75 INCH HEIGHT SIZE; 50/60 HERTZ FREQUENCY RATING; 10 AMP AT 240 VOLT AC CONTACT RATING; UL 508, IEC 60947 APPROVAL; 190 TO 480 VOLT AC VOLTAGE RATING; DIN RAIL/SURFACE MOUNTING; 10 AMP CURRENT RATING; 0.7 POUND WEIGHT; -4 TO 158 DEG F OPERATING TEMPERATURE; 3-PHASE CIRCUIT TYPE; SPDT OUTPUT TYPE; 12 TO 22 AWG WIRE GAUGE TERMINATION TYPE; 4 SECOND (UNDER/OVER VOLTAGE), 2 SECOND (UNBALANCE AND PHASING FAULT) TIME DELAY; 2 SECOND PHASE LOSS PROTECTION; 6 PERCENT (TRIP), 4.5 PERCENT (RESET) PHASE UNBALANCE PROTECTION
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