GAI-Tronics 780-001 Explosion-proof Handset Stations - Manual (Page 5)

Pub. 42004-156D
Model 780/785-001 and 7805/7855-001 Explosion-proof Handset Stations Page: 5 of 12
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03/04
Conduit Installation
Refer to Pub. 42004-184 (US), 42004-238 (Canada) 42004-239 (Canada), as applicable. These
publications detail how to maintain the integrity of the explosion-proof stations.
NOTE
External conduits in Class I, Groups C and D areas must have gas seals not more
than 18 inches (457 mm) from the station enclosure. External conduits in Class II and Class III areas
must have seals if the conduit system is not dust-tight.
Wiring
After the station is mounted, use a 7/16-inch wrench to open the front cover to access the Termination
PCBA. Refer to Pub. 42004-184 (US), and 42004-238 (Canada) or 42004-239 (Canada), as applicable
for wiring details.
Feed the wiring through the conduit and into the enclosure. Follow the wire colors carefully—these colors
correspond to GAI-Tronics 60029 or 60038 Series cable. The wires must be spade-lugged and connected
carefully and completely to the terminal block. An improper termination may result in diminished station
performance.
Before closing the station cover, plug the power interconnect cable from the front of the enclosure into the
connector on the power supply card in the rear enclosure.
NOTE
All the bolts must be installed to maintain the integrity of the explosion-proof
construction.