TP232 RS-232 Serial Surge Protector


  • Two metal mounting brackets
  • Three stages of protection: Gas discharge tube, series resistor and transient voltage suppressor (TVS)
  • Two terminal posts for ground
  • RS-232 high energy surge protector
  • Terminal blocks for transmit, receive, request to send, clear to send and signal ground
  • Safe for use with computers and PLCs
  • Also works with RS-485, RS-422 and 20 mA
  • Indicators
  • Remote displays
  • Printers
  • Computers
  • PLC

The TP232 RS-232 high energy surge protector is safe to use with computers and PLCs. This device offers three stages of protection using different technologies for optimal surge protection.

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TP232 RS-232 Info Product Specifications

Clamping Voltage (Stage One):
72 V DC minimum, 108 V DC maximum

Series Resistance (Stage Two):
2.7 ohm

Clamping Voltage (Stage Three):
14.3 V minimum, 15.7 V maximum


Operating Range
0 °F to 122 °F (-18 °C to 50 °C)

Clamping Time:
Less than 5 × 10-9 seconds

Five-position terminal blocks


(L × W × H)
Approximately 4.5 × 3.3 × 1.8 in

CE marked

One-year limited


RS232 Protection,TP232 3-Stage Transient Serial Protection – Gas Discharge, Series Resistor, and TVS, Ground Strap,12in Tinned Copper Braid, Ground Strap,24in Tinned Copper Braid, LIT,Manual TP232 Installation Guide


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