GAI-Tronics 703-006 Multi-Party Amplifier Enclosure (ATEX Zone 2/CE Mark) - Manual (Page 2)

Pub. 42004-367C
Model 703-006 Multi-Party Amplifier Enclosure Page 2 of 8
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Enclosure Placement
All GAI-Tronics Page/Party ® units are wired in parallel. Good system layout design minimizes the cable
required for each installation. GAI-Tronics multi-conductor cable, designed especially for this
application, is recommended. The number, size, and color-coding of conductors are listed in the system
connection diagrams.
System layout and power cable length are very important when installing Page/Party equipment.
Although it varies for different systems, the general guideline is that the total power cable length should
not exceed one mile (5280 feet) for 120 V ac systems. The total cable length is the most important
consideration while cable length between the stations is generally not a factor.
Mounting
The Model 703-006 Enclosure is not supplied with conduit or cable openings. Drill or punch these
openings using Figure 1 before mounting the enclosure. Whenever possible, do not enter an enclosure
from the top: side or bottom entry helps to prevent moisture from dripping onto the terminals or PCBAs.
The entry holes should be placed on the enclosure per Figure 1.
Plain entry holes must maintain the following:
 The plain hole shall be no larger than 0.7 mm above the major diameter of the entry thread.
 The gland or stopping plug is secured internally by a locknut, such that the gland or stopping plug
will be not dislodged by a 7 N-m impact.
 The enclosure will be maintained at IP 66 by a suitable sealing washer under the shoulder of the cable
gland or conduit hub.
The customer may drill plain entry holes in the enclosure providing they are in accordance with the
relevant code of practice and comply with the details shown in Figure 1. When mixed entries are
accommodated on a face they must be in the positions shown in this manual for the largest gland entry on
that face. For complex mixed entries, contact GAI-Tronics Technical Sales. Entries into the enclosure
must be via a suitable approved entry device. All unused entry holes must be fitted with a stopping plug
with a certification equal to that of the enclosure’s ATEX certification. The stopping plug shall be held in
place by a locknut.