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Littelfuse 460 Three-Phase Voltage Monitor

Price: $96.11
Quantity:
+ -
Usually ships within 1 week
SKU: MSR460


Shipping Weight:
3.0 LBS
Shipping Dimensions
Length: 6 In
Width: 6 In
Height: 10 In
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Littelfuse 460 Voltage Monitor Product Description

The Model 460 is designed to protect 3-phase motors from damaging power conditions. The 460’s wide operating range combined with UL and CE compliance enables quick access to domestic and global markets.

A unique microcontroller-based voltage and phase-sensing circuit constantly monitors the 3-phase voltages to detect harmful power line conditions. When a harmful condition is detected, the MotorSaver's output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to an acceptable level for a specified amount of time (restart delay). The trip delay prevents nuisance tripping due to rapidly fluctuating power line conditions.

The Model 460 automatically senses whether it is connected to a 190-240V, 60Hz system, a 440-480V, 60Hz system, or a 380-416V, 50Hz system. An adjustment is provided to set the nominal line voltage from 190-240 or 380-480VAC. Other adjustments include a 1-30 second trip delay, 1-500 second restart delay, and 2-8% voltage unbalance trip point.

Littelfuse 460 Voltage Monitor Typical Applications

  • Fans
  • Compressors
  • HVAC
  • Heat Pumps
  • Well Pumps
  • Sump Pumps
  • Small Conveyor Motors
  • Oil Rigs

Littelfuse 460 Voltage Monitor Features

  • Protects Motor From:
    • Loss of any Phase
    • Low Voltage
    • High Voltage
    • Voltage Unbalance
    • Phase Reversal
    • Rapid Cycling
  • Standard Surface Mount -OR-
  • Opt. DIN Rail Mount
  • Standard 1-500 sec. Variable Restart Delay
  • Standard 2-8% adj. Voltage Unbalance Trip Point
  • Standard 1-30 sec. Variable Trip Delay
  • One 10 Amp General Purpose Form C Relay
  • UL and cUL Listed
  • 5-Year Warranty
  • Made in USA
  • Universal Voltage Range From 109-480VAC 50/60Hz Provide the Versatility Needed to Handle Global Applications.
  • Four Adjustment Pots Provide Flexability for a Variety of Applications.
  • Diagnostic LEDs Indicate Trip Status and Make Troubleshooting a Snap.
  • Microcontroller-Based Circuitry Provides Better Accuracy and Higher Reliability than Analog Designs.
  • Transient Protection Meets IEEE Standards and Allows Operation under Tough Conditions.

Littelfuse 460 Voltage Monitor Specifications

3-Phase Line Voltage . . . . . . . . . . . . 190 to 480 VAC

Frequency . . . . . . . . . . . . . . . . . . . . . 50 or 60 Hz

Low Voltage (% of setpoint)

  • Trip . . . . . . . . . . . . . . . . . . . . . . . . . . 90% ±1%
  • Reset . . . . . . . . . . . . . . . . . . . . . . . . .93% ±1%

High Voltage (% of setpoint)

  • Trip . . . . . . . . . . . . . . . . . . . . . . . . . . 110% ±1%
  • Reset . . . . . . . . . . . . . . . . . . . . . . . . .107% ±1%

Voltage Unbalance (NEMA)

  • Trip . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8% adjustable
  • Reset . . . . . . . . . . . . . . . . . . . . . . . .Trip setting minus 1% (5-8%)
  • . . . . . . . . . . . . . . . . . . . . . . . . . . Trip setting minus 0.5% (2-4%)
  • 460L . . . . . . . . . . . . . . . . . . . . . . . . . . 6% UB fixed (4.5% reset)

Trip Delay Time

  • Low, High and Unbalanced Voltage. . . . . . . . . .1-30 seconds adjustable
  • 460L . . . . . . . . . . . . . . . . . . . . . . . . . . 4 seconds fixed
  • Single-Phasing Faults (>25% UB) . . . . . . . 1 second fixed

Restart Delay Time

  • After a Fault . . . . . . . . . . . . . . . . . 1-500 seconds adjustable
  • After a Complete Power Loss . . . . . . . 1-500 seconds adjustable

Output Contact Rating

  • Form C . . . . . . . . . . . . . . . . . . . . . . . . 480VA @ 240VAC, B300 Pilot Duty
  • . . . . . . . . . . . . . . . . . . . . . . . . . . . . or 10A @ 240VAC General Purpose
  • Form A & Form B . . . . . . . . . .360VA @ 240VAC, B300 Pilot Duty
  • . . . . . . . . . . . . . . . . . . . . . . . . . . . . or 8A @ 240VAC General Purpose

Temperature Range

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

Class of Protection . . . . . . . . . . . . . . . . . IP20, NEMA 1 (finger safe)

Power Consumption . . . . . . . . . . . . . 6 Watts (Max.)

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

Terminal Torque. . . . . . 4.5 in.-lbs

Wire Type. . . . . . Stranded or Solid 12-20 AWG, One Per Terminal

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

RFI, Radiated. . . . . . 150 MHz, 10V/m

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

Surge

  • IEC . . . . . . . . . . . . . . IEC 61000-4-5, Level 3, 4kV 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)

Safety Marks

  • UL. . . . . . . . . . . . . . . . . UL508 (File #E68520)
  • CE . . . . . . . . . . . . . . . . . IEC 60947-6-2
Enclosure . . . . . . . . . . . . . . . . . . . . . Polycarbonate

Weight . . . . . . . . . . . . . . . . . . . . . . . . 11.2 oz.

Mounting Method . . . . . . . . . . . 35 mm DIN rail or Surface Mount (#6 or #8 screws)

460-MR(manual reset) . . . . . . . . . . External NO pushbutton required.


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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