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Surge Protective Devices for 4-20ma Signal Loop Networks

Surge Protective Devices for 4-20ma Signal Loop Networks

Both Cat. Nos. 3420-009 and 3420-035 are UL 497B Listed and CE Marked products for data communication circuits. Designed to provide transient voltage surge suppression for 4-20ma process control loop systems, these SPD's provide low clamping voltages and the ability to withstand high transient current surges that may be encountered by process control equipment operating in harsh electromagnetic environments or geographic areas where there is exposure to the effects of lightning strikes.

FEATURES AND BENEFITS:

  • Both 3420-009 and 3420-035 are referenced within the Rockwell Automation Encompass™ Program
  • Both SPD units are designed to provide transient voltage protection using connections compatible with readily available off-the-shelf 3-pin screw terminal connectors.
  • Both SPD's offer two ground-connection options: a ground plate for direct connection to ground-stud terminals, and a pig-tail lead for direct connection to any ground bus
  • Both SPD's offer dual-redundant protection paths for transients entering into or out of the units with automatic reset-PTC fusing
  • Both SPD's are backed by Leviton's 5-year limited warranty

TYPICAL SPECIFICATION:

The 3420-009 and -035 units are designed to provide transient voltage surge protection for process-control equipment 4-20ma signal loops. Cat. No. 3420-009 shall be used in control loops operating at 9 Volts C, maximum, and Cat. No. 3420-035 shall be used in systems operating at 35 Volts DC, maximum. SPD's shall be equipped with readily available 3-pin screw terminal connectors. SPD's shall feature dual-redundant protection paths, and backed by a limited 5-year warranty.

TESTING AND CODE COMPLIANCE:

Leviton's 3420 devices have been tested to IEEE C62.36 Standard Test Methods for Surge Protectors Used in Low-Voltage, Data and Communication Signaling Circuits, and also to Standard UL 497B Protection for Data Communication and Fire Alarm Circuits.

3420-35

TVSS FOR SIGNAL LOOP 9V

$134.28 each

3420-9

TVSS FOR SIGNL LOOP 38V

$134.28 each