1 1

Littelfuse 777-LR-P2 Pump Monitor Overload Relay 200-480V 3-Phase 1-800FLA Plus

Littelfuse 777-LR-P2 Pump Monitor Overload Relay 200-480V 3-Phase 1-800FLA Plus

Usually ships within 1 week

SKU : MSR777LRP2

In Stock Quantity:0

:
Brand : Littelfuse/Symcom
$950.26 USD
Shipping calculated at checkout.

Description

Littelfuse 777-LR-P2 Pump Monitor Product Description

The 777 is a fully programmable electronic overload relay designed to protect any motor drawing 2-800 full load amps (external CTs are required above 90 amps). The 777 (family of products) is for 3-phase 200-480 V ac applications, with several specialized units for other voltage ranges and unique applications. Common applications include conveyor systems, HVAC equipment, saws and grinders, fan motors, and almost any pumping application. Some unique applications include use with a Subtrol* equipped Franklin submersible motor to detect high motor temperatures and applications where a fast linear trip is required.

The 777 is a fully programmable electronic overload relay designed to protect any motor drawing 2-800 full load amps (external CTs are required above 90 amps). The 777 (family of products) is for 3-phase 200-480 V ac applications, with several specialized units for other voltage ranges and unique applications. Common applications include conveyor systems, HVAC equipment, saws and grinders, fan motors, and almost any pumping application. Some unique applications include use with a Subtrol* equipped Franklin submersible motor to detect high motor temperatures and applications where a fast linear trip is required.

The 777-LR-P2 Protects low range motors when wired directly or with 10-800 FLA with use of external CTs.

Littelfuse 777-LR-P2 Pump Monitor Typical Application

  • Conveyor Systems
  • HVAC Equipment
  • Saws and Grinders
  • Fan Motors
  • All Pumping Applications With Single-Phase Electric Motors

Littelfuse 777-LR-P2 Pump Monitor Technical Details

  • Protects 3-Phase Motors From:
    • High Voltage
    • Low Voltage
    • Reverse-Phase
    • Voltage Unbalance
    • Overcurrent
    • Undercurrent
    • Current Unbalance
    • Single-Phase
    • Ground Fault, Class II
  • 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
  • Remote Reset
  • Last Fault Memory
  • UL and cUL Listed
  • CE Compliant
  • CSA Approved
  • Surface or DIN Rail Mount
  • 5-year Warranty
  • Made in USA
  • Replaces 777-LR & 777-LR-P

Specifications

Littelfuse 777-LR-P2 Pump Monitor Specifications

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

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

TC-Overcurrent Trip Class (777 Plus Series units) . . . . . . . 02-60, J02-J60, L00-L60 or Off

TC-Overcurrent Trip Class (77C, 777 non-Plus Series units) . . . . . . . 5, 10, 15, 20, 30 (J prefix enables jam protection feature)

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%
  • Timing (777 Plus Series units) . . . . . . . . . . . . . . . . . ±0.5 second
  • Timing (77C, 777 non-Plus Series units) . . . . . . . . . . . . . 5% +1 second

Repeatability

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

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.

Electorstatic 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-LR-P2 Pump Monitor Resources

product-resourcesb.png

Littelfuse 777-LR-P2 Product Specifications

Littelfuse 777-LR-P2 Installation Bulletin

Littelfuse 777-LR-P2 Engineering Specifications

Littelfuse 777-LR-P2 Programming Guide

Warranty
Loading...
View full details

PUMPS, WATER & WASTE WATER TREATMENT AND A WHOLE LOT MORE

Dedicated to deliver the highest quality products, and services in the water and wastewater industry, and with the help of our well-trained staff, provide a lasting value to each customer we support... read more

HELPING CUSTOMERS SINCE 1953

As time-tested specialists in water and waste water pumping systems, we are your best choice for pumps and related equipment.

  • Wastewater Treatment Systems
  • Sump Pump Systems
  • UV Water Purification & Treatment
  • Irrigation Pump Systems
  • Storm Water Lift Stations
  • Water Well Pump Systems

OUR CUSTOMERS REVIEWS