GE IC660TBA101 Terminal Assembly

The GE IC660TBA101 serves as a termination unit for Genius I/O blocks. This terminal assembly connects field devices to the main controller. You will find it in distributed control systems across factories. It simplifies wiring for discrete input and output signals. Therefore, this unit reduces installation time significantly.

This terminal assembly measures 150 mm in height and 120 mm in width. Its depth reaches 65 mm for DIN rail mounting. The unit weighs approximately 0.52 kilograms. It contains twenty screw-type terminal positions. Each terminal accepts 14 to 22 AWG wire. Additionally, you get two built-in fuse holders for overcurrent protection.

Key Technical Specifications

Parameter	Value
Manufacturer	GE Fanuc Automation
Model	IC660TBA101
Product Type	Terminal Assembly / Termination Unit
Number of Terminals	20 positions
Wire Gauge Range	14 to 22 AWG
Height	150 mm
Width	120 mm
Depth	65 mm
Weight	0.52 kg
Fuse Holders	2 (built-in)
Fuse Rating	5 x 20 mm, 1A maximum
Energy Storage	0 Joules (none)
Internal Components	0 active parts
Mounting Type	DIN rail (35 mm)
Operating Temperature	-20°C to +70°C

Internal Architecture and Energy Storage

The GE IC660TBA101 stores absolutely no electrical energy internally. It contains no capacitors or inductors at all. This unit provides passive signal passthrough for all twenty channels. Two internal copper bus bars distribute common voltage. Each terminal connects directly to a corresponding pin on the ribbon header. The unit also includes a ground stud for shield termination. You get labeling strips for identifying each channel clearly.

Connection Interfaces and Wiring Details

You will find a 50-pin ribbon cable header on top of this assembly. This header connects directly to a Genius I/O block. Twenty terminals on the front accept field device wires. Use a small flathead screwdriver to tighten each terminal screw. Connect the positive supply wire to the common bus bar terminal. Then, route individual output wires to their respective channel terminals. The GE IC660TBA101 includes two fuse holders for output protection. Install a 1A fast-blow fuse into each holder as needed.

Mounting and Installation Steps

You mount this terminal assembly onto standard 35 mm DIN rail. First, hook the top lip onto the rail edge. Then, push the bottom clip downward to lock it in place. Slide the assembly along the rail for easy positioning. Connect the 50-pin ribbon cable between this unit and the I/O block. Always tighten the fuse holder caps completely. The assembly requires no external power supply for operation. It simply passes signals from field devices to the controller. For high-vibration areas, add end stops on both sides of the rail.