User Manual

Accessories
14.3 Accessories for 3UG458. insulation monitoring relays.
3UG4 / 3RR2 monitoring relays
342 Manual, 02/2013, NEB927043002000/RS-AA/002
Mounting onto standard rail
The figure below shows how to install the 3UG4983 upstream module on a standard rail.
Table 14- 13 Installing the 3UG4983 upstream module (mounting onto standard rail)
Step Instructions Figure
1 / 2 Position the device on the top edge of
the mounting rail and press it down until
it snaps onto the bottom edge of the
rail.
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Table 14- 14 Disassembling the 3UG4983 upstream module (mounting onto standard rail)
Step Instructions Figure
1 / 2 To remove, apply the screwdriver to the
device and push it up with a twisting
motion against the tension of the fixing
spring.
3 Swing the device upwards to remove it.
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