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Littelfuse 102A-3 Three-Phase Voltage Monitor Trip Delay

Littelfuse 102A-3 Three-Phase Voltage Monitor Trip Delay

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SKU : MSR102A-3

In Stock Quantity:0

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Brand : Littelfuse/Symcom
$232.56 USD
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Description

Littelfuse 102A-3 Voltage Monitor Product Description

The Model 102A-3 is an auto-ranging voltage monitor with adjustable trip delay designed to protect 3-phase motors regardless of size. It is used on 190-480 VAC, 50 to 60 Hz motors to prevent damage caused by single phasing, low voltage, phase reversal, or voltage unbalance.

Littelfuse 102A-3 Voltage Monitor Typical Applications

  • Fans
  • Compressors
  • Air Conditioners
  • Heat Pumps
  • Well Pumps
  • Sump Pumps
  • Small Conveyor Motors

Littelfuse 102A-3 Voltage Monitor Features

  • Universal Range From 190-480 VAC, 50/60 Hz, Provides the Versatility Needed to Handle Global Applications.
  • Bicolor LED Indicator Light is Green in Normal Conditions and Red During Trip Conditions.
  • Compact Design Saves Precious Panel Space.
  • Microcontroller-Based Design Provides Better Accuracy and Higher Reliability Than Analog Designs.
  • Transient Protected to Meet IEEE 587 Standards and Stand up Under Tougher Conditions.
  • 10A @ 240 VAC General Purpose Relay can Switch Most Loads.
  • Detects Single-Phase Condition Regardless of Regenerated Voltages
  • Allows for Adjusting the Trip Delay

Specifications

Littelfuse 102A-3 Voltage Monitor Specifications

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

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

Low Voltage (% of set point)

  • Trip . . . . . . . . . . . . . . . . . . . . . . . . . . 90%
  • Reset . . . . . . . . . . . . . . . . . . . . . . . . . 93%

Voltage Unbalance (NEMA)

  • Trip . . . . . . . . . . . . . . . . . . . . . . . . . . 6%
  • Reset . . . . . . . . . . . . . . . . . . . . . . . . . 4.5%

Trip Delay Time

  • Low/High Voltage . . . . . . . . . . . . . . . . 4 seconds (standard)
  • Unbalance & Phasing Faults . . . . . . . 2 seconds

Restart Delay Time

  • After a Fault . . . . . . . . . . . . . . . . . 2 seconds (standard)
  • After a Complete Power Loss. . . . . . . 2 seconds (standard)

Output Contact Rating

  • SPDT- 1 Form C. . . . . . . . . . . . . . . . . . . . . . . . 480 VA @ 240 VAC Pilot Duty
  • . . . . . . . . . . . . . . . . . . . . . . . . . . . . or 10A @240 VAC General Purpose

Temperature Range

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

Trip & Reset Accuracy . . . . . . . . . . . . . . . . . . . . ±1%

Power Consumption . . . . . . . . . . . . . 5 Watts (Max.)

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

Wire Size . . . . . . . . . . . . 12-18AWG

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

Fast Transient Burst . . . . . IEC 61000-4-4, Level 3, 4kV input, 2kV input/output

Transient Protection (Internal) . . . . . IEC 1000-4-5; 1995 ±6kv

Safety Marks

  • UL. . . . . . . . . . . . . . . . . . . . . . . . UL508 (File #E68520)
  • CSA . . . . . . . . . . . . . . . . . . . . 22.2 No. 14 (File #46510)
  • CE . . . . . . . . . . . . . . . . . . . . IEC 60947-6-2

Weight . . . . . . . . . . . . . . . . . . . . . . . . 16.8 oz.

Mounting Method . . . . . . . . .#8 screws

*Note: 50 Hz will increase all delay timers by 20%.


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

Resources

Littelfuse 102A-3 Voltage Monitor Resources

product-resourcesb.png

Littelfuse 102A-3 Product Specifications

Littelfuse 102A-3 Installation Bulletin

Littelfuse 102A-3 Engineering Specifications

Warranty
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