GE Mark VIe System Manual page 18

1.4.2.1 T-type
T-type terminal boards typically fan the sensor inputs to three separate I/O packs. Usually, the TMR board hardware votes the
outputs from the three I/O packs. T-type boards contain two, 24-point, barrier-type, removable, terminal blocks. Each point
can accept two 3.0 mm (0.12 in) (#12AWG) wires with 300 V insulation per point with either spade or ring-type lugs. In
addition, captive clamps are provided for terminating bare wires. Screw spacing is 9.53 mm (0.375 in) minimum and
center-to-center.
Note Some application-specific TMR terminal boards do not fan inputs or vote the outputs.
Barrier-type Terminal Blocks
These terminal blocks have the following features:
• Black in color with white number labels
• Terminal rating is 300 V, 10 A
• UL recognized
• Recommended screw tightening torque is 7 lb-in (0.8 Nm).
18 GEH-6721_Vol_I_BP GEH-6721_Vol_I Mark VIe and Mark VIeS Control Systems Volume I
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