INSTALLATION
135
NA30 - Manual - 04 - 2022
6 I N S T A L L A T I O N
6 I N S T A L L A T I O N
6.1 PACKAGING
Packaging consists of a polystyrene foam packaging guaranteeing adequate protection for transport
and storage under normal environmental conditions.
The Pro-N protection relays must be stored within the required temperature limits; the relative hu-
midity should not cause condensation or formation of frost.
It is recommended that the devices are stored in their packaging; in the case of long storage, espe-
cially in extreme climatic conditions.
It is recommended that the packaging not be disposed of into the environment, but kept in case the
relay should be moved at some later time.
6.2 MOUNTING
The Pro-N protection relays are housed inside metal cases suitable for various kinds of assembly:
• Flush mounting
• Projecting mounting
• With separate operator panel
• Rack.
Removability is ensured to facilitate maintenance operations so that the electronic module can be
replaced; this provides minimum downtime and maximum protection availability.
Flush mounting
The fixed case, fitted with special fastening brackets, is mounted on the front of electric control
board, previously drilled as indicated in the drawing.
In case of side-by-side mounting of several relays the minimum drilling distance is determined by
the front dimensions indicated in the overall dimensions drawing, increased by 3 mm, to ensure an
adequate tolerance and gasket space between adjacent relays.
The depth dimension, as indicated in the drawing, must be increased by as much as needed to allow
room for the wiring.
F1
D1
RX
TX
F2
F3
F4
F5
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
B1
B2
B3
B4
B5
B6
B7
B8
C1
C2
C4
C3
C5
C6
C7
C8
E1
171
205
149
30
101
N.4 holes ø 3,5
102.5
±0.3
70
161
154
Flush-mount.ai
Flush mounting
107
177
ON
4
1
3
2
5
TRIP
START
NOTE
Separation of fixed and removable parts is NOT required
