GE IC660BBA021-3 GE IC660BBA021-1 GE IC660BBA021-4 GE IC660BBA021-2

The GE IC660BBA021 is a dedicated RTD (Resistive Temperature Detector) input block within the Genius I/O family, designed to bring accurate temperature measurement into distributed industrial control systems. This module interprets resistance-based temperature signals from various RTD sensor types — including platinum, nickel, or copper — and converts them into engineering units such as degrees Celsius, Fahrenheit, Ohms, or raw counts for PLC logic and monitoring. Factory calibration and built-in diagnostics ensure reliable performance with minimal setup effort, making the IC660BBA021 a trusted choice for process automation, environmental monitoring, and thermal management applications.

Technical Specifications

Specification	Description
Module Type	RTD Input Block
Model Number	IC660BBA021
Power Supply	24 VDC / 48 VDC (18–56 VDC operating)
Input Channels	6 RTD circuits (arranged in 3 groups of 2)
Supported RTD Types	Platinum (DIN 43760), Nickel (DIN 43760), Copper
Resistance Range	0 – 5000 Ohms
Resolution	0.1 °C or equivalent engineering unit
Update Frequency	Configurable: 400 ms / 800 ms / 1600 ms
Input Filter	Selectable per block
Isolation	~1500 V block-to-block; ~300 V group-to-group
Status Indicators	Unit OK, I/O Enabled LEDs
Heat Dissipation	~7 W max
Mounting	Panel or terminal base mount
Approx. Dimensions (H × W × D)	~22.44 × 8.89 × 10.00 cm
Approx. Weight	~1.8 kg (4 lbs)
Operating Temperature	0 – 60 °C
Storage Temperature	-40 – 100 °C
Humidity	5 % – 95 % (non-condensing)

Recommended Related Models

Model	Functional Description
IC660BBA020	24/48 VDC analog I/O block (voltage/current)
IC660BBA023	6-input thermocouple temperature block
IC660BBA024	Analog current source I/O block
IC660BBD020	Digital I/O block

Popular GE Genius I/O Components

Category	Representative Models
Genius Controllers	IC660CPU001, IC660CPU002
Bus Receiver	IC660BRD021
Analog Blocks	IC660BBA020, IC660BBA023
Digital Blocks	IC660BBD010, IC660BBD020

Applications

The IC660BBA021 is ideal for industrial systems requiring precise temperature data for control logic or monitoring purposes. Typical applications include:

Process automation temperature feedback
Thermal profiling in continuous production lines
Environmental monitoring in infrastructure systems
HVAC and thermal control in large-scale industrial facilities

Its support for multiple RTD sensor materials and built-in linearization makes it versatile across many sensing scenarios where accurate and reliable thermal input is critical.

Advantages

Multi-type RTD support — Works with platinum, nickel, or copper sensors.
Factory calibrated — No post-installation calibration needed, saving setup time.
High resolution — Detects temperature changes as small as 0.1 °C.
Flexible update rates — Configurable scan rates for tailored performance.
Robust diagnostics — Detects wiring errors, open wires, overrange/underrange, and internal faults.
Strong isolation — Block-to-block and group-to-group isolation enhances noise immunity.

Technical FAQs

What does the GE IC660BBA021 measure?
It measures resistance from RTD sensors and reports temperature or resistance values.
How many RTD inputs does this module support?
Six input circuits arranged as three groups of two.
Which RTD sensor types are compatible?
Platinum, nickel, and copper RTDs per DIN 43760 standard.
What is the resolution of temperature measurement?
Up to 0.1 °C resolution.
Does it require recalibration after installation?
No — factory calibration eliminates the need for field recalibration.
Can the module detect wiring issues?
Yes — built-in diagnostics detect wiring errors and open wires.
What environmental conditions is it rated for?
Industrial temperatures from 0 °C to 60 °C and humidity up to 95 % non-condensing.
What voltage range powers this block?
Compatible with 24 VDC or 48 VDC supplies within the 18–56 VDC range.
How is the module mounted?
It installs on a compatible terminal assembly or panel mount base.
Is this module suitable for hazardous environment use?
Industrial ratings make it suitable for general industrial environments; always follow local safety standards.