Amphenol® RJF 544 Harsh Environment Ethernet Connection System

As of: Wednesday, September 9, 2026

Standard Features

Allows an Ethernet Class D/Category 5e connection for 10Base-T, 100Base-TX or 1000Base-T networks in harsh environments
Sealed against fluids and dusts (IP67)
Shock, vibration and traction resistant
No cabling operation in the field
No tools required
Improved EMI protection
Uses a standard RJ-45 cord set in protective composite plug to protect from shocks, dust and fluids
In-field cabling and grounding not necessary

The Amphenol RJF series provides a safe environment for the use of an Ethernet Class D/Cat5e connection for Ethernet networks in harsh environments. The uniquely designed connection system protects from shock, dust and fluid. No hazardous on-field cabling and grounding required.

Amphenol RJF 544 Ethernet Connection System Specifications

Data Transmission:
10Base-T, 100Base-TX and 1000Base-T networks Category 5e per TIA/EIA 568B and ClassD per ISO/IEC 11801

Mechanical:
Quick push/pull coupling
RJ-45 cordset retention in the plug: 100N in the axis
Mating cycles: 500 min

Environmental Protection:
Sealing: IP67
Salt Spray: > 1000h
Fire retardant/low smoke: UL94 V0 and NFF 16 16102, DIN 5510-2
Vibrations: 10 to 500 Hz, 10g, 3 axes:
no discontinuity > 10 nanos
Thermal Shock: Five cycles at -40 / +100 °C

Temperature:
Operating:
-40 to 185 °F (-40 to 85 °C)

Applications:
Telecom equipment, video control, robotics, industrial process control, CNC machines, motion control, tele-maintenance

Parts

Part #	Description

87326	CONN,Series RJF544 Kit Ethernet, RJ45, Includes Plug, Receptacle, Gasket, And Dust Caps
87285	CONN,Receptacle Ethernet Square Flange, IP67, RJ-45, 5 Contacts, Female RJ45 Back Termination, Series RJF544
87286	CONN,Dust Cap For Use With Series RJF544 Harsh Environment Receptacles, IP67
87287	Gasket, For Use With Series RJF544 Harsh Environment Receptacles, IP67
87288	CONN,Plug Ethernet IP67, RJ-45, Series RJF544
87289	CONN,Dust Cap For Use With Series RJF544 Harsh Environment Plugs, IP67