The GE IC660TBD021 is a Terminal Base Assembly purpose-built for supporting discrete output signals in GE Fanuc Genius I/O distributed automation environments. This terminal base acts as the field connection interface for outputs such as relays, contactors, lamps, and actuators, providing a secure and organized termination point for field wiring that routes directly to the corresponding discrete output electronics assembly.
By isolating field wiring from the electronics module, the IC660TBD021 improves serviceability, enhances connection integrity, and simplifies maintenance in industrial installations.
Technical Specifications
| Specification | Details |
|---|---|
| Model | GE IC660TBD021 |
| Module Type | Discrete Output Terminal Base Assembly |
| System Platform | GE Fanuc Genius I/O |
| Wiring Function | Field termination for discrete output devices |
| Terminal Style | Screw-clamp field terminals |
| Electronics Interface | Edge connector to discrete output electronics assembly |
| Mounting Method | Plug-in Genius I/O rack or block |
| Dimensions (W × H × D) | 224 × 90 × 100 mm |
| Weight | 0.92 kg (approx.) |
| Operating Temperature | 0 to 60 °C |
| Storage Temperature | −40 to 100 °C |
| Environmental Rating | Industrial, non-condensing |
Field Wiring and Functional Role
The IC660TBD021 terminal base provides a robust termination point for field devices driven by discrete outputs, such as:
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Solenoid valves
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Indicator lamps
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Relay coils
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Contactors
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Motor starter circuits
Field device leads are secured into screw-clamp terminals, which then interface via the terminal base to the corresponding discrete output electronics assembly (e.g., IC660EBD021). This modular configuration keeps field wiring clear and allows electronics modules to be changed without rewiring the field terminations.
Recommended Related Models
To build a complete discrete output I/O solution, the IC660TBD021 is typically used with:
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GE IC660EBD021 – Discrete output electronics assembly
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GE IC660BBD021 – Complete discrete output block assembly
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GE IC660BCM501 / BCM101 – Genius bus controller modules
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GE IC660BBS100 / BBS101 / BBS102 / BBS103 – Power supply modules
These components work together to deliver a scalable, serviceable discrete output subsystem.
Comparable Allen-Bradley Terminal Bases
In cross-platform comparisons, similar discrete output terminal bases include:
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Allen-Bradley 1734-TB – POINT I/O terminal base
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Allen-Bradley 5069-TB – Compact 5000 terminal base
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Allen-Bradley 1794-TB – FLEX I/O terminal base
These terminal bases serve comparable roles in their respective distributed I/O architectures.
