IC660BBD101 4 IC660BBD101 2 IC660BBD101 3

The GE IC660BBD101 is an industrial-grade low-leakage discrete input/output block from the Genius I/O series, originally manufactured by GE Fanuc and now supported under Emerson Automation Solutions. Designed for distributed PLC applications, it provides eight independently configurable circuits that can function as inputs, outputs, or tristate inputs for 115 VAC discrete devices. Engineered for demanding environments, this module combines flexible configuration, strong diagnostics, and integrated status indicators to support both legacy and current automation systems.

Technical Specifications

Specification	Description
Module Type	115 VAC Discrete I/O Block (Low-Leakage)
Model	IC660BBD101
Operating Voltage	93 – 132 VAC (nominal 115 VAC)
Frequency	47 – 63 Hz
I/O Circuits	8 discrete channels (configurable input/output)
Load Current	Up to 2 A per circuit (steady state)
Total Maximum Load	Up to ~15 A total (across all outputs)
Input Response	~2 ms + selectable filter (10–100 ms)
Output Switching	Zero-crossing switching for AC loads
Diagnostics	Open wire, overload, no-load, failed switch, overtemperature detection
Isolation	1500 V block-to-block
Status Indicators	Unit OK, I/O Enabled, individual circuit LEDs
Standby Power	~8.5 W (all I/O off)
Heat Dissipation	~16 W (inputs); 43.5 W (outputs @ 2 A)
Mounting	Panel or DIN-rail mount
Dimensions (H × W × D)	224 × 85 × 99 mm (8.83″ × 3.34″ × 3.91″)
Weight	~1.8 kg (4 lbs)
Communication	Genius Bus distributed I/O protocol

Each I/O channel supports electronic fusing and configurable filtering, reducing susceptibility to noise and false triggering in AC environments. Control power for the block is derived directly from the field I/O wiring — no separate block power supply is required.

Recommended Related Models

Model	Description
IC660BBD100	Standard 115 VAC 8-circuit I/O block
IC660BBD020	24/48 VDC 16-circuit source/sink discrete I/O
IC660BBD021	24/48 VDC 16-circuit sink discrete I/O
IC660BBD022	24/48 VDC 16-circuit source discrete I/O

Popular GE Genius I/O Components

Category	Representative Models
Genius Controllers	IC660CPU001, IC660CPU002
Discrete I/O	IC660BBD020, IC660BBD024
Analog I/O	IC660BBA100, IC660BBA023
Bus Drivers	IC660EBD024

Applications

The IC660BBD101 is ideal for discrete industrial automation systems requiring 115 VAC signal interfacing, including:

Machine control panels with AC pushbuttons, limit switches, and proximity sensors
Driving pilot lights, AC relays, and solenoid coils
Distributed I/O stations in factory automation and process systems
Retrofit integration with legacy PLC platforms
Remote panel solutions where individual circuits require configurable behavior

Its eight configurable channels and integrated diagnostics make it adaptable for varied control logic requirements.

Advantages

Flexible channel configuration — Each circuit can be independently set as input, output, or tristate input.
Integrated diagnostics suite — Detects open wires, overloads, failed switches, and thermal faults.
Strong electrical isolation — ~1500 V block-to-block isolation enhances safety in AC environments.
Selectable filtering — 10–100 ms input filter improves noise immunity.
Zero-crossing output switching — Reduces electrical stress and improves AC load handling.
Clear LED status — Unit and per-circuit indicators simplify troubleshooting and commissioning.
No separate power needed — Block extracts control power from I/O wiring, simplifying panel wiring.

Technical FAQs

What voltage does the IC660BBD101 operate on?
It runs from 93–132 VAC with a nominal rating of 115 VAC.
How many discrete circuits are on this block?
The block provides 8 configurable circuits that can be inputs, outputs, or tristate inputs.
What is the maximum load current per output?
Each circuit can handle up to 2 A steady-state.
Does this block include diagnostics?
Yes — it detects overload, open wire, failed switch, no-load, and overtemperature conditions.
Is separate block power required?
No — the block draws power from field wiring and does not need an external supply.
What response times are typical?
Input response is approximately 2 ms plus selectable filter delay.
What isolation rating does it have?
It offers 1500 V block-to-block isolation for enhanced noise immunity.
How is output switching handled?
Outputs use zero-crossing switching ideal for AC loads.
Where is this module typically mounted?
It’s mounted on control panels or DIN rails within distributed I/O racks.
Which communication protocol does it use?
It communicates over the Genius Bus distributed I/O protocol.