User Manual

System overview
3.4 Mounting / removal
3UG4 / 3RR2 monitoring relays
32 Manual, 02/2013, NEB927043002000/RS-AA/002
3.4.3 Installing the 3UG458. monitoring relay.
Rail mounting
The figure below shows how to install the 3UG458. insulation monitoring relay on a standard
rail.
Table 3- 13 Installing the 3UG458. insulation monitoring relay (mounting onto standard rail)
Step Instructions Figure
1 / 2 Position the device on the top edge
of the DIN rail and press down until
it snaps onto the bottom edge of the
DIN rail.
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Table 3- 14 Removing the 3UG458. insulation monitoring relay. (Removing from 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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