IC660TSD020 4 IC660TSD020 3 IC660TSD020 1 IC660TSD020 2

The GE IC660TSD020 DC Transistor Output Module is designed for industrial automation systems that require reliable, fast-switching DC output control at the field level. As part of the GE Series 90 distributed I/O platform, this module delivers consistent control of DC loads such as solenoids, relays, indicators, and other low-power actuators commonly used in continuous-duty applications.

Focused on electrical stability rather than complexity, the IC660TSD020 is frequently chosen for both system expansion and direct replacement projects where preserving existing wiring and logic is essential. Its predictable output behavior makes it a trusted component in long-running industrial installations.

Technical Specifications – Electrical Performance and Physical Details

Specification	Description
Module Type	DC Transistor Output Module
Output Signal Type	DC Discrete Output
Output Technology	Transistor (Sinking)
Rated Output Voltage	24 VDC
Output Voltage Range	18–30 VDC
Number of Output Channels	8 Outputs
Maximum Output Current	Approx. 2 A per channel (resistive load)
Electrical Isolation	Channel-to-channel isolation
Typical Switching Speed	< 5 ms
Mounting Style	Base-mounted I/O block
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 85°C
Dimensions (H × W × D)	Approx. 145 × 97 × 66 mm
Weight	Approx. 0.66 kg

The solid mechanical design supports reliable operation in control cabinets exposed to vibration, electrical noise, and long operating cycles.

Recommended Related Models – Common IC660 I/O Combinations

IC660TBD025 – 24 VDC discrete input module
IC660TBD120 – 120 VAC discrete input module
IC660TSD040 – Higher-capacity DC transistor output module
IC660TSA020 – AC triac output module
IC660PBB100 – Power supply module for IC660 I/O systems

These modules are often combined to create balanced DC and AC input/output architectures within distributed systems.

Popular GE Models – Frequently Used with IC660 Field I/O

GE IC693CPU374 – Series 90-30 PLC CPU
GE IC695CPU320 – RX3i Programmable Controller
GE IC695ETM001 – Ethernet Interface Module
GE IC693MDL740 – DC Input Module
GE IC695ALG600 – Analog Input Module

In many modernization projects, IC660 modules remain at the field level while controllers and networks are upgraded.

Applications – Typical DC Output Use Cases

DC solenoid and valve control
Relay and interposing relay driving
Indicator lamps and signal beacons
Packaging and assembly machinery
Material handling and conveyor systems
Replacement for existing Series 90 DC output modules

The IC660TSD020 is especially effective where fast response and high switching reliability are required.

Advantages – Why This Module Is Still Widely Selected

Fast transistor switching for precise DC control
No mechanical wear compared to relay outputs
Stable operation under continuous duty cycles
Preserves existing field wiring and logic
Reduces downtime during replacement
Proven reliability in long-life industrial systems

For plants focused on keeping mature automation platforms running smoothly, this module offers performance without disruption.

Technical FAQs – Engineer-Focused Answers

1. What type of outputs does the IC660TSD020 provide?
It provides 24 VDC discrete outputs using transistor (sinking) technology.

2. How many output points are available?
The module supports 8 independent DC output channels.

3. What types of loads can it drive?
It is suitable for DC solenoids, relays, indicators, and similar low-power actuators.

4. Is it suitable for high-speed switching?
Yes, transistor outputs provide fast response compared to relay-based modules.

5. Does the module include electrical isolation?
Yes, channel-to-channel isolation helps protect the control system.

6. Can it operate continuously in industrial environments?
It is designed for continuous-duty operation in control cabinets.

7. Is it commonly used as a replacement module?
Yes, it is frequently installed as a direct replacement in Series 90 systems.

8. Does it require special configuration software?
No additional configuration tools are required beyond the host controller.

9. Can it coexist with AC output modules in the same system?
Yes, DC and AC IC660 modules are commonly mixed within the same I/O architecture.

10. Why choose a transistor output instead of a relay output?
Transistor outputs offer faster switching, silent operation, and longer service life.

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