16AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | O I/A W T4 2 0 - E N R E V. B…5 Electrical installationPower supply connectionWARNINGBodily injury – USA and Canada only• The use of cable glands, cable/flexible cord forconnection of the mains power source to the mains inputand relay contact output terminals is not permitted.NOTICEElectrical installation – ABB recommendations:• Ferrules are fitted to all cables.• Use M4 ring terminals (crimped) on the earth conductorprior to fitting to the earth stud on the gland plate(plastic enclosure) or M5 ring terminals prior to fittingto the earth boss (metal enclosure).• Only 1 cable per cable gland.Referring to Figure 11, page 17:1 Using a suitable screwdriver, release door retaining screwA and open the transmitter door.2 Release terminal cover retaining screw B and removeterminal cover plate C.3 Slide retaining clip D off blanking plug E and remove theblanking plug if fitted.4 Fit cable gland F and secure using nut G.5 Remove gland cover H and route mains power supplycable I through it.6 Route the cable through cable gland F and into theenclosure case.NOTICEUse a single-holed bush for the mains power cable.7 Make connections to the power supply connectionterminals J. Connect earth wire K to earth stud L.8 Tighten gland cover H.9 Refit terminal cover C and secure it with retaining screw B.10 Close the transmitter door and secure with door retainingscrew A.