Section 4 Mounting; Required Tools; Checking Environmental Conditions And Mounting Space; Mounting Options - ABB RELION REX640 Installation Manual

1MRS759115 A
Section 4
4.1
4.2
4.3
4.3.1
4.3.1.1
REX640
Installation Manual
Mounting

Required tools

• TX25 and TX30 screwdrivers for installing the protection relay with mounting
kits
• TX25 and TX20 screwdrivers for mounting the LHMI
Checking environmental conditions and mounting
space
The mechanical and electrical environmental conditions at the installation site must be
within the limits described in the technical manual.
• Avoid installation in dusty, damp places.
Avoid places susceptible to rapid temperature variations, powerful vibrations and
shocks, surge voltages of high amplitude and fast rise time, strong induced
magnetic fields or similar extreme conditions.
• Check that sufficient space is available.
Sufficient space is needed at the front and rear of the protection relay to allow
access to wires and optical fibers, to provide sufficient ventilation to the
protection relay and to enable maintenance and future modifications.
• Ensure that flush-mounted protection relays can be added and replaced without
excessive dismantling.

Mounting options

Mounting local HMI

Flush mounting local HMI

1. Make a cutout for the LHMI according to the dimensional drawing.
Section 4
Mounting
11