Description
The General Electric IC660BBA104 is a high-performance Genius Current-Source Analog I/O Block designed to interface a host controller with industrial field devices that supply or accept 4 mA to 20 mA analog signals. Part of the robust Genius I/O product family, this unit features four independent current input channels and two independent current output channels, providing reliable conversion and control for complex process automation tasks.
Each input channel includes an integrated 24 VDC current loop power supply and is fully isolated from all other internal circuits to protect against ground loops and electrical interference. The two output channels deliver precise power and control for 4 mA to 20 mA loops while supporting dedicated Bus Switching Module (BSM) control for redundant network configurations. Advanced onboard diagnostics and software-configurable scaling make the IC660BBA104 an ideal choice for demanding industrial environments requiring high fidelity and continuous system monitoring.
Features
- Four isolated 4 mA to 20 mA current input channels with dedicated 24 VDC loop power supplies
- Two 4 mA to 20 mA current output channels with electrical commonality and BSM control support
- Nominal block power supply rating of 115 VAC (98 to 132 VAC, 47 to 63 Hz) or 125 VDC
- Comprehensive built-in diagnostics including high/low alarms, open wire detection, overrange/underrange, and feedback error checking
- Software-configurable linear scaling and input conversion times ranging from 16 ms to 400 ms
- Hot-swappable electronics assembly design allowing replacement without disconnecting field wiring
Applications
- Process control systems and distributed automation networks
- Interfacing 2-wire, 3-wire, and 4-wire industrial transmitters
- Valve actuators, analog controllers, and feedback loops
- Water treatment, chemical processing, and energy management systems
Technical Specifications
| Parameter |
Specification |
| Manufacturer |
General Electric |
| Catalog Number / SKU |
IC660BBA104 |
| Product Type |
Current-Source Analog I/O Block |
| Nominal Block Power Supply |
115 VAC / 125 VDC |
| Power Supply Voltage Range |
98 to 132 VAC (47 to 63 Hz); 105 to 145 VDC |
| Maximum Current Consumption |
250 mA (115 VAC); 140 mA (125 VDC) |
| Input Channels |
4 (Isolated 4 to 20 mA current inputs) |
| Output Channels |
2 (4 to 20 mA current outputs) |
| Input Accuracy |
0.1% of full scale reading at 25 degC |
| Output Accuracy |
0.15% of full scale reading at 25 degC |
| Channel Isolation |
1500V RMS group-to-group and channel-to-channel |
| Heat Dissipation |
12 Watts maximum |
| Operating Temperature |
0 degC to +60 degC (+32 degF to +140 degF) |
| Storage Temperature |
-40 degC to +100 degC (-40 degF to +212 degF) |
| Humidity |
5% to 95% non-condensing |
| Dimensions |
22.44 cm x 8.48 cm x 9.93 cm (8.83 in x 3.34 in x 3.91 in) |
| Net Weight |
1.8 kg (4.0 lbs) |
| Country of Origin |
United States |
Connections / Interfaces
- Terminals 1 to 4: Serial bus connections and shielding for Genius network communication
- Terminals 5 to 7: Block power supply connections (Line/DC+ and Neutral/DC-) and safety ground
- Terminals 9 to 10: Bus Switching Module (BSM) connections
- Terminals 11 to 32: Dedicated field wiring connections for input excitation, analog inputs, and output loops
Installation Guidelines
The IC660BBA104 block is classified as open equipment and must be installed within a suitable protective enclosure located in a clean environment with adequate cooling airflow. Mount the block vertically or horizontally by securing it with 8-32 screws and star washers through the mounting flanges. Ensure a low-impedance ground connection is made from the block's green ground screw to a reliable earth ground system using a minimum size AWG #12 wire. Maintain at least 2 inches of clearance between adjacent blocks to support proper thermal management.