FGD-2 Connections

Connectors with screw-down compression terminals are used for all FGD-2

connections. The connectors, and the headers that they plug into, have a

dovetailed edge that ensures proper connector orientation. Similar-sized

connectors and headers are uniquely keyed to ensure that a connector

mates only with the correct header to prevent damage to the FGD-2.

However, care must still be taken to ensure that the proper connector is

inserted into the appropriate header. Connector screw terminals accept a

maximum wire size of 8 AWG. The maximum screw torque is 7.1 in-lb or

0.8 N•m. Figure 2 illustrates typical FGD-2 connections.

The FGD-2 was designed to be connected between F+ and ground, but

it is also compatible with applications where only F– is available.

Figure 3 illustrates this alternate connection option.