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Items 21-30 of 3263

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  1. PMDU
    PMDU
    Macromatic Protection Relays, PMD Series
    Item Number
    PMDU
    MFG Item Number
    PMDU
    Series
    PMD
    Product Description
    Phase Monitor Relay, 208-480VAC,
    Specifications
    Specifications
    Number of Phases 3
    Line Voltage 190-500 V
    Current Supported 10 A
    Hi Pwr (Over Vltg) Trip Yes
    Lo Pwr (Under Vltg) Trip Yes
    Under Current Detect No
    Over Current Detect No
    Variable Point Trip No
    Phase Loss Detect Yes
    Phase Rvrse/Rotatn Detect Yes
    Voltage Unbalance Detect Yes
    Voltage Unbalance % 2-10 %
    Current Unbalance Detect No
    Contact Failure Detect No
    Restart Delay (Sec) 1-300 s
    Rapid Cycling Detect Yes
    Var Restart Delay No
    Manual Reset Yes
    Type of Display LED Status Indicator
    Lo KW Trip Detect No
    Lo HP Trip Detect No
    Mounting DIN Rail
    Output Relay DPDT
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  2. 250A
    250A
    Symcom Protection Relays, 250A Series
    Item Number
    250A
    MFG Item Number
    250A
    Series
    250A
    Product Description
    Voltage Monitor, 3-Ph, DPDT/VRD
    Specifications
    Specifications
    Number of Phases 3
    Voltage Supported 190-480 V
    Current Supported 10 A
    Hi Pwr (Over Vltg) Trip Yes
    Lo Pwr (Under Vltg) Trip Yes
    Phase Rvrse/Rotatn Detect Yes
    Voltage Unbalance Detect Yes
    Voltage Unbalance % 6 %
    Time Delay Trip (Sec) 2-4 s
    Restart Delay (Sec) 2-300 s
    Var Restart Delay Yes
    Manual Reset Yes
    Type of Display LED Status Indicator
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  3. 202-RP
    202-RP
    Symcom Protection Relays, 202-RP Series
    Item Number
    202-RP
    MFG Item Number
    202-RP
    Series
    202-RP
    Product Description
    Reverse Phase Relay, 190-480V 3-Ph,
    Specifications
    Specifications
    Number of Phases 3
    Voltage Supported 190-480 V
    Phase Rvrse/Rotatn Detect Yes
    Restart Delay (Sec) 2 s
    Type of Display LED Status Indicator
    Mounting Plug-In
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  4. 777-LR-P2
    777-LR-P2
    Symcom Protection Relays, 77C Series
    Item Number
    777-LR-P2
    MFG Item Number
    777-LR-P2
    Series
    77C
    Product Description
    Motor Saver, 200-480VAC Input, 1-9A
    Specifications
    Specifications
    Number of Phases 3
    Voltage Supported 200-480 V
    Current Supported 1-800 A
    Hi Pwr (Over Vltg) Trip Yes
    Lo Pwr (Under Vltg) Trip Yes
    Under Current Detect Yes
    Over Current Detect Yes
    Phase Rvrse/Rotatn Detect Yes
    Voltage Unbalance Detect Yes
    Current Unbalance Detect Yes
    Manual Reset Yes
    Type of Display LED Digital Display
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  5. LSRX
    LSRX
    Symcom Protection Relays, LSRX Series
    Item Number
    LSRX
    MFG Item Number
    LSRX
    Series
    LSRX
    Product Description
    Load Sensor, Self-Powered 5-200A,
    Specifications
    Specifications
    Current Supported 5-200 A
    Under Current Detect Yes
    Over Current Detect Yes
    Type of Display LED Status Indicator
    Mounting Surface
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  6. AC260B160-250
    AC260B160-250
    Time Mark Protection Relays
    Item Number
    AC260B160-250
    MFG Item Number
    98057102
    Product Description
    Volt Sens W/Led
    Specifications
    Specifications
    Voltage Supported 160-250 V
    Hi Pwr (Over Vltg) Trip Yes
    Lo Pwr (Under Vltg) Trip Yes
    Under Current Detect No
    Over Current Detect No
    Variable Point Trip No
    Phase Loss Detect No
    Phase Rvrse/Rotatn Detect No
    Voltage Unbalance Detect No
    Current Unbalance Detect No
    Contact Failure Detect No
    Rapid Cycling Detect No
    Var Restart Delay No
    Manual Reset No
    Type of Display LED Status Indicator
    Lo KW Trip Detect No
    Lo HP Trip Detect No
    Mounting Socket
    Output Relay SPDT
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  7. PVC-400-AR
    PVC-400-AR
    RK Electronics Protection Relays, PVC Series
    Item Number
    PVC-400-AR
    MFG Item Number
    PVC-400-AR
    Series
    PVC
    Product Description
    3PHASE 440-480AC 600VAC OUTPUT
    Specifications
    Specifications
    Number of Phases 3
    Voltage Supported 440-480 V
    Current Supported 2-10 A
    Lo Pwr (Under Vltg) Trip Yes
    Phase Loss Detect Yes
    Phase Rvrse/Rotatn Detect Yes
    Time Delay Trip (Sec) 5 s
    Type of Display LED Status Indicator
    Mounting Surface
    Output Relay SPDT, 1NO
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  8. 1SVR730824R9300
    1SVR730824R9300
    ABB Protection Relays
    Item Number
    1SVR730824R9300
    MFG Item Number
    1SVR730824R9300
    Product Description
    Phase Monitoring Relay, 200-500VAC,
    Specifications
    Specifications
    Number of Phases 3
    Voltage Supported 200-500 V
    Current Supported 4 A
    Type of Display LED Status Indicator
    Mounting DIN Rail
    Output Relay DPDT
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  9. VWKP024D
    VWKP024D
    Macromatic Protection Relays, VW Series
    Item Number
    VWKP024D
    MFG Item Number
    VWKP024D
    Series
    VW
    Product Description
    Voltage Band Relay, 24VDC, 10A DPDT
    Specifications
    Specifications
    Number of Phases 1
    Line Voltage 24 V
    Current Supported 10 A
    Hi Pwr (Over Vltg) Trip No
    Lo Pwr (Under Vltg) Trip No
    Under Current Detect No
    Over Current Detect No
    Variable Point Trip No
    Phase Loss Detect No
    Phase Rvrse/Rotatn Detect No
    Voltage Unbalance Detect No
    Current Unbalance Detect No
    Contact Failure Detect No
    Time Delay Trip (Sec) 0.1-10 s
    Restart Delay (Sec) 1 s
    Rapid Cycling Detect No
    Var Restart Delay No
    Manual Reset No
    Type of Display LED Status Indicator
    Lo KW Trip Detect No
    Lo HP Trip Detect No
    Mounting DIN Rail
    Output Relay DPDT
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  10. PAP480
    PAP480
    Macromatic Protection Relays, PAP Series
    Item Number
    PAP480
    MFG Item Number
    PAP480
    Series
    PAP
    Product Description
    Phase Monitor Relay, 480VAC,
    Specifications
    Specifications
    Number of Phases 3
    Line Voltage 480 V
    Current Supported 10 A
    Hi Pwr (Over Vltg) Trip No
    Lo Pwr (Under Vltg) Trip Yes
    Under Current Detect No
    Over Current Detect No
    Variable Point Trip No
    Phase Loss Detect Yes
    Phase Rvrse/Rotatn Detect Yes
    Voltage Unbalance Detect No
    Current Unbalance Detect No
    Contact Failure Detect No
    Restart Delay (Sec) 1 s
    Rapid Cycling Detect No
    Var Restart Delay No
    Manual Reset No
    Type of Display LED Status Indicator
    Lo KW Trip Detect No
    Lo HP Trip Detect No
    Mounting Plug-In
    Output Relay SPDT
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
per page

Protection Relays

Protection relays are electronic components designed to prevent unnecessary trips, isolate faults and protect motors, breakers, and other equipment.

Modern protective relays are microprocessor-based, and use inputs and settings to intelligently compare measurements to setpoints and produce a desired output. Inputs can include variables like current, voltage, resistance and temperature. If any of those values exceed a prescribed setpoint, the relay can trigger an output like an alarm, an indicating light, a network communication, and even turn another device on or off.

Because modern protection relays use digital technology to operate, they can produce quick, reliable, repeatable outputs far more frequently over a longer lifetime. They also provide better accuracy to eliminate nuisance trips, reduced maintenance needs to improve uptime, and better efficiency to cut costs and save panel space.

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