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
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
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.