L28033 Ethernet In-line Surge Protection


The 28033 provides in-line surge protection for Ethernet connections. It can be used to protect Ethernet products from damage by electrical transients conducted through the Ethernet cable. Keep the 28033 in mind when deploying an NL115, NL120, NL200, NL100, or CC5MPX outdoors with long or exposed Ethernet cable runs. Please remember that this device only works if it is well grounded.

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Jacks Shielded RJ45 jacks and metal enclosure
Ground Wire Integrated 26 cm (10 in.) ground wire
Compliance Complies with IEC 61643-21
Clamping Voltage
  • 7.5 V on data pins 1, 2, 3, 6
  • 70 V on POE pins 4, 5, 7, 8
Maximum Surge Discharge Current 10 kA
Peak Pulse Current 100 A
Operating Temperature Range -20° to +60°C
Operating Humidity Range 0 to 95% (non-condensing)
Dimensions 82 x 25.4 x 25.4 mm (3.2 x 1 x 1 in.)
Weight 68 g (2.4 oz)


The 28033 provides surge protection for our Ethernet modules as well as our CC5MPX and CC5MPXWD digital cameras. The 28033 is compatible with 100 Mbps data networks and 48 V POE systems.