Electrical Connections; Cable Connection - ABB 265GS Operating Instruction

Electrical connections

5 Electrical connections
WARNING - General risks
Observe the applicable regulations governing electrical installation. Connections must only be
established in a dead-voltage state. Since the transmitter has no switch-off elements,
overvoltage protection devices, lightning protection, and voltage separation capacity must be
provided at the plant (overvoltage / lightning protection is optional).
Check that the existing operating voltage corresponds to the voltage indicated on the name
plate.
The same lines are used for both the supply power and output signal.
5.1

Cable connection

Depending on the design supplied, the electrical connection is established via a cable entry,
M20 x 1.5 or 1/2-14 NPT thread, or Han 8D (8U) plug (PROFIBUS PA and FOUNDATION
Fieldbus: M12 x 1 or 7/8" plug).
The screw terminals are suitable for wire cross sections of up to 2.5 mm
IMPORTANT (NOTE)
With Category 3 transmitters for use in "Zone 2", the cable gland must be installed by the
customer (see the section "Use in explosion-proof areas"). An M20 x 1.5 thread is located in
the electronics housing for this purpose.
For pressure transmitters with type of protection "flameproof enclosure" (Ex d), the housing
cover must be secured using the locking screw (Fig. 7).
For pressure transmitters that conform to the "Canadian Standards Association (CSA)
Explosion-Proof" type of design, the following should be noted when establishing an electrical
connection via a cable conduit:
The cable conduit must be screwed in using a suitable sealing medium in order to ensure the
applicable type of protection (type 4X, IP 67). The screw plug that is already screwed in must
be sealed at the plant using Molykote DX. The installer assumes responsibility for any other
type of sealing medium used.
At this point, we wish to draw your attention to the fact that increased force will be required to
unscrew the housing cover after an interval of several weeks. This is not caused by the
threads, but instead is due solely to the type of seal.
28 265Gx, 265Ax
2
(AWG 14).
IM/265Gx/Ax-EN-07