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Littelfuse 77C Pump Monitor Overload Relay 100-240V Single Phase 2-800FLA

Price: $334.49
Quantity:
+ -
Usually ships within 24 hours.
In Stock Quantity: 1
SKU: MSR77C


Shipping Weight:
8.0 LBS
Shipping Dimensions
Length: 12 In
Width: 10 In
Height: 10 In
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Littelfuse 77C Pump Monitor Product Description

The 777/ 77C 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). Common applications include conveyor systems, HVAC equipment, saws and grinders, fan motors, and almost any pumping application.

All of the overload relays provide unsurpassed protection by combining overload, underload, and voltage in one package. 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. This capability allows for a simple, cost-effective way to meet new requirements for arc-flash safety.

Littelfuse 77C Pump Monitor Typical Application

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

Littelfuse 77C Pump Monitor Technical Details

  • Protects Single-Phase Motors From:
    • Overload
    • Underload
    • Jams
    • Low Voltage
    • High Voltage
    • Rapid Cycling
  • Fully Programmable
  • 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 ULC Listed
  • CE Compliant
  • CSA Approved
  • Surface or DIN Rail Mount
  • 5-year Warranty
  • Made in USA

Littelfuse 77C Pump Monitor Specifications

Line Voltage . . . . . . . . . . . . . . . . . . . . . 100-240VAC

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

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 (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.govWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

SymCom Warranty

SymCom Limited Warranty

Terms and Conditions of Sale

Effective January 1, 2009 General Remarks: These Terms and Conditions of Sale apply to all sales and deliveries effected by SymCom. Any terms or conditions on the part of the purchaser that are contrary to these shall not be binding on SymCom, even if they form the basis of the order. Prices: Subject to change without notice. Minimum order is one hundred-fifty dollars ($150.00), excluding shipping charges. Terms: Net 30 days from ship date with approved credit. New customers requesting trade credit must submit a credit application prior, and receive approval prior to an order being placed in production. Handling Fee: A $5.00 handling fee will be assessed on each order. Delivery: Buyer's delivery schedule will be met to the best of SymCom's ability. SymCom reserves the right to make partial shipments on any order. SymCom is not responsible for shipping errors on behalf of the carrier. Freight: All sales are F.O.B., SymCom, Inc., Rapid City, SD. Shipments will be made by the transportation method selected by the Buyer whenever practical. Warranty: SymCom warrants its standard products against defects in material or workmanship for a period of five (5) years from the date of manufacture. All third-party products are warranted by their manufacturer and are handled as a pass-through warranty by SymCom. All custom and private labeled products are warranted for eighteen (18) months unless otherwise stated in writing. The liability of SymCom is limited, at its option, to replace, repair, or credit at the purchase price, for any devices which are returned during the warranty period and which prove to be defective. This warranty constitutes SymCom's sole liability here under and is in lieu of any other warranty expressed, implied or statutory, written or oral, including without limitation, any implied warranties of merchantability or fitness for a particular purpose and supersedes any representations made by any person which are inconsistent with or expand the terms set forth in this document. No person is authorized to modify this warranty in any way whatsoever. Limits of Liability: IN NO EVENT, REGARDLESS OF CAUSE, SHALL SYMCOM BE LIABLE FOR (1) PENALTIES OR PENALTY CAUSES OF ANY DESCRIPTION OR (2) FOR CERTIFICATION NOT OTHERWISE SPECIFICALLY PROVIDED HEREIN AND/OR INDEMNIFICATION OF BUYER TO OTHERS FOR COSTS, DAMAGES OR EXPENSES, EACH ARISING OUT OF OR RELATED TO THE PRODUCT OR SERVICES OF ANY ORDER OR (3) FOR ANY DAMAGES, WHETHER GENERAL, SPECIAL, OR FOR NEGLIGENCE, AND EXPRESSLY EXCLUDES DAMAGES RESULTING FROM LOSS OF PROFITS, USE OF PRODUCTS, ANY INCIDENTAL, OR INDIRECT CONSEQUENTIAL DAMAGES EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SYMCOM'S OBLIGATION TO REPAIR, REPLACE OR CREDIT THE PURCHASE PRICE SHALL BE THE LIMIT OF ITS LIABILITY UNDER THIS WARRANTY. Returns: All returns must be authorized by SymCom and must have a Return Material Authorization (RMA) number. Issuance of a RMA number does not acknowledge goods as defective or under warranty by the seller. Unauthorized returns will be refused. Authorized returns must be shipped freight prepaid and are subject to inspection and/or testing prior to disposition. Product built to Buyer's specifications cannot be returned for credit or exchanged under any circumstances. For SymCom’s complete RMA terms, please visit our website. Cancellation of Custom or Non-Preferred Products: Buyer may cancel an order upon written notice to SymCom's customer service department and upon payment of cancellation charges, which shall include all costs, both direct and indirect, incurred and/or committed. SymCom agrees to divert completed work and work in progress from a cancelled order to other orders whenever possible. Cancellation of Preferred Products: Full refund if returned within 30 days of purchase. Unit must be in original packaging and in new condition. An RMA must be issued for any return.

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