- 9 - 
2.6 Terminal Array 
 
Wries are connected to the terminal base according to the layout , shown at left in Fig 2.5.2 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
               Fig. 2.5.2 Terminal diagram label and Terminal Block style 
 
Terminal Block Style 
The terminal block is available in the barrier style, shown at right in Fig.2.5.2. 
z  Screw : M3.0   
z  Wire No. : #22 to 16AWG   
 
Wiring Rules and Recommendations 
In general, stranded copper wire should be used for non-thermocouple electrical connections. 
Twisted-pair wiring with shielded cable will improve noise immunity if wire routing is suspect. 
 
Wire Gage 
The recommended minimum wire size for connections is as follows. 
Wire Gauge  Wire Application 
20  DC current and voltage field wiring 
22  DC current and voltage wiring in control room