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Littelfuse 350-200 Three-Phase Voltage/Phase Monitor

Littelfuse 350-200 Three-Phase Voltage/Phase Monitor

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SKU : MSR350-200

In Stock Quantity:0

:
Brand : Littelfuse/Symcom
$332.10 USD
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Description

Littelfuse 350-200 Voltage/Phase Monitor Product Description

The 350 is a heavy-duty voltage monitor. This product should be used when high current relays or dual contacts are required, or 480V controls are used. Since the 350 uses heavy-duty relays, it comes in fixed voltage range models rather than a dual autoranging version like the Model 250.

The 350-200 has a 15A general purpose contact. The 350-400 provides a SPDT (Form C) relay rated to switch up to 600V, allowing the use of 480V controls, eliminating the need for a control power transformer to step the voltage down to 120-240V. Several DPDT (two Form C contacts) relay models are also available.

The 350 microcontroller-based family of products are low cost yet highly advanced solutions to heavy-duty problems. The 350 includes advanced single LED diagnostics. Five different light patterns distinguish faults and normal operating conditions. Other options such as high voltage trip and adjustable restart delay are available.

Littelfuse 350-200 Voltage/Phase Monitor Typical Applications

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

Littelfuse 350-200 Voltage/Phase Monitor Features

  • Proprietary Microcontroller Based Circuitry: Constantly Monitors 3 Phase Voltage to Protect against Harmful Line Conditions, Even before the Motor is Started
  • Advanced LED Indication: Provides Diagnostics which can be Use for Troubleshooting and to Determine Relay Status
  • Adjustable Restart Delay (-2 models) Settings: Allows Staggered Start up of Multiple Motors, After a Fault, to Prevent a Low Voltage Condition
  • 600V Rated Relay Contacts Available on Some Models: Eliminates the Need for a Control Transformer to Step Voltage Down to 120-240V for Control Circuit

Specifications

Littelfuse 350-200 Voltage/Phase Monitor Specifications

3-Phase Line Voltage . . . . . . . . . . . . 190 to 240 VAC

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

Low Voltage (% of setpoint)

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

Voltage Unbalance (NEMA)

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

Trip Delay Time

  • Low Voltage . . . . . . . . . . . . . . . . 4 seconds
  • Unbalance & Phasing Faults . . . . . . . 2 seconds

Restart Delay Time

  • After a Fault . . . . . . . . . . . . . . . . . 2 seconds
  • After a Complete Power Loss. . . . . . . 2 seconds

Output Contact Rating

  • SPDT (350200) . . . . . . . . . . . . . . . . . . . . . . . . 480VA @ 240VAC Pilot Duty
  • . . . . . . . . . . . . . . . . . . . . . . . . . . . . or 15A General Purpose
  • SPDT (350-400,350-600) . . . . . . . . . . . . . . . . . 470VA @ 600VAC
  • DPDT(-6 Option) . . . . . . . . . . . . . . . . . 1-10A General Purpose
  • . . . . . . . . . . . . . . . . . . . . . . . . . . . . or 480VA @ 240VAC Pilot Duty
  • . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15A General Purpose
  • . . . . . . . . . . . . . . . . . . . . . . . . . . . . or 480VA @ 240VAC Pilot Duty
  • . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1hp @ 240VAC
  • DPDT (-8 Option) . . . . . . . . . . . . . . . . . 2-15A General Purpose
  • . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480VA @ 240VAC Pilot Duty
  • . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1hp @ 240VAC

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

Transient Protection (Internal). . . . . . IEC 61000-4-5;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

  • Option 2: Variable Restart Delay . . . . . . . . . . . Manual, 2-300 seconds adj.
  • Option 5: DPDT Relay
  • Option 6: 2 Relays (1) 10A, (1) 15A
  • Option 8: 2 Relays (2) 15A
  • Option 9: High Voltage (% of setpoint)
    • Trip . . . . . . . . . . . . . . . . . . . . . . . . 110%
    • Reset. . . . . . . . . . . . . . . . . . . . . . . 107%

*Note: 50Hz 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 350-200 Voltage/Phase Monitor Resources

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Littelfuse 350-200 Product Specifications

Littelfuse 350-200 Installation Bulletin

Littelfuse 350-200 Engineering Specifications

Warranty
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