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Littelfuse 777-MLR-KW/HP-P2 Pump Monitor Overload Relay 3-PH 200-480V 0.5-740FLA

Littelfuse 777-MLR-KW/HP-P2 Pump Monitor Overload Relay 3-PH 200-480V 0.5-740FLA

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SKU : MSR777MLRKWHPP2

In Stock Quantity:0

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Brand : Littelfuse/Symcom
$980.72 USD
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Description

Littelfuse 777-MLR-KW/HP-P2 Pump Monitor Product Description (Replaces 777-MLR-KW/HP)

The 777-KW/HP-P2 series has the overload, voltage, phase loss and reversal, voltage and current unbalance, current and power monitoring*, and underload trip based on power in one package. The underpower trip feature is desirable anytime the current vs. load characteristic is non-linear or has little change. In general terms, smaller motors and slow-speed motors have little change in current over the normal load range. Larger motors that are running light loads will also show small current changes over the operating load range. For standalone applications, the units incorporate a 3-digit LED display that is used for programming, providing real-time operational information and displaying diagnostic codes to aid in troubleshooting a fault condition. The units also feature a communications port that can be used with communication modules listed in the 777 accessories section to form a Modbus, DeviceNet**, Profibus, or Ethernet network. Up to 99 units can be remotely monitored and controlled from a PC, PLC, or SCADA system, and data logging through a PC with the optional Solutions software.

The 777-MLR-KW/HP-P2 Series provides 480 VA @ 240 V ac output SPDT relay contacts. It is wired directly without the need to loop conductors for 5-21 amps (under 5 amps requires looping of conductors), and can be used with external CTs for 40-740 amps.

Littelfuse 777-MLR-KW/HP-P2 Pump Monitor Typical Application

  • Conveyor Systems
  • HVAC Equipment
  • Saws and Grinders
  • Fan Motors
  • All Pumping Applications

Littelfuse 777-MLR-KW/HP-P2 Pump Monitor Technical Details

  • Protects 3-Phase Motors From:
    • High Voltage
    • Low Voltage
    • Voltage Unbalance
    • Reverse-Phase
    • Overcurrent
    • Undercurrent
    • Current Unbalance
    • Single-Phase
  • Network Programmable
  • Programmable With 9-Volt Battery Prior to Installation
  • Automatic Reset With Three Separate Restart Delay Timers, or Manual Reset
  • Tamper Guard
  • RS-485 Communications Port (Communications Module Sold Separately)
  • 3-digit LED Diagnostic Display
  • Last Fault Memory
  • UL and ULC Listed
  • CE Compliant
  • CSA Approved
  • Surface or DIN Rail Mount
  • 5-year Warranty
  • Made in USA
  • Replaces 777-MLR-KW/HP

Specifications

Littelfuse 777-MLR-KW/HP-P2 Pump Monitor Specifications

Line Voltage . . . . . . . . . . . . . . . . . . . . . 200-480VAC

Frequency . . . . . . . . . . . . . . . . . . . . 50/60Hz

TC-Overcurrent Trip Class . . . . . . . 02-60, J02-J60, L00-L60 or Off

Output Contact Rating

  • SPDT-Form C . . . . . . . . . . . . . . . .480VA @ 240VAC, B300 Pilot Duty
  • . . . . . . . . . . . . . . . . . . . . 10A @ 240VAC General Purpose

Ambient Temperature Rating

  • Operating. . . . . . . . . . . . . . . . . -20° to 70°C (-4° to 158°F)
  • Storage. . . . . . . -40° to 80°C (-40° to 176°F)

Accuracy

  • Voltage. . . . . . . . . . . . . . . . . . . . . . . . ±1%
  • Current . . . . . . . . . . . . . . . . . ±3%(<100 amps direct)
  • GF Current. . . . . . . . . . . ±15%
  • Power . . . . . . . . . . . . . . . ±4% (<100 amps direct)
  • Timing . . . . . . . . . . . . . . . . . ±0.5 second

Repeatability

  • Voltage. . . . . . . . . . . . . . . . . . . . . . . . ±0.5% of nominal voltage
  • Current . . . . . . . . . . . . . . . . . . . . . . ±1% (<100 amps direct)
  • Power . . . . . . . . . . . . . . . . . . . . . . ±2%

Maximum Input Power . . . . . . . . . . . . . 10 W

Class of Protection . . . . . . . . . . . . . IP20

Relative Humidity . . . . . . . . . . . . . 10-95%, non-condensing per IEC 68-2-3

Terminal Torque . . . . . . . . . . . .7 in.-lbs.

Electrostatic Discharge (ESD) . . . . . . . . . IEC 61000-4-2, Level 3, 6kV contact, 8kV air

Radio Frequency Immunity (RFI), Conducted . . . . . . . . .IEC 61000-4-6, Level 3 10V/m

Radio Frequency Immunity (RFI), Radiated . . . . . . . . .IEC 61000-4-3, Level 3 10V/m

Fast Transient Burst . . . . . . . . .IEC 61000-4-4, Level 3, 3.5kV input power

Short Circuit . . . . . . . . .100kA

Surge

  • IEC . . . . . . . . . 61000-4-5, Level 3, 2kV line-to-line; Level 4, 4kV line-to-ground
  • ANSI/IEEE. . . . . . .C62.41 Surge and Ring Wave Compliance to a level of 6kV line-to-line
  • Hi-Potential Test . . . . . . . . . . . . . . . . .Meets UL508 (2 x rated V +1000V for 1 minute)
  • Vibration . . . . . . . . . . . .IEC 68-2-6, 10-55Hz, 1mm peak-to-peak, 2 hours, 3 axis
  • Shock . . . . . . . . . IEC 68-2-27, 30g, 3 axis, 11ms duration, half-sine pulse

Safety Marks

  • UL . . . . . . . . . UL508, UL1053 (File #E68520)
  • CE. . . . . . .IEC 60947-1, IEC 60947-5-1
  • CSA . . . . . . . . . . C22.2

Weight . . . . . . . . . . . . . . . . . . . . . . . . 24.96 oz.

Mounting Method . . . . . . . . . . . . . . . .Surface mount (4 - #8 screws) or DIN rail mount


WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Resources

Littelfuse 777-MLR-KW/HP-P2 Pump Monitor Resources

product-resourcesb.png

Littelfuse 777-MLR-KW/HP-P2 Product Specifications

Littelfuse 777-MLR-KW/HP-P2 Installation Bulletin

Littelfuse 777-MLR-KW/HP-P2 Engineering Specifications

Littelfuse 777-MLR-KW/HP-P2 Programming Guide

Warranty
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