| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Honeywell 621-6550RC Source Output Module
- Product Details
- FAQs
- Related
- Contact Us
- Packing & Delivery
- Product Ratings

Product Overview
The Honeywell 621-6550RC Source Output Module is part of the Honeywell TDC 2000/3000 Series, designed to provide high-integrity digital output signals in industrial control systems. It delivers source-type outputs suitable for directly driving digital actuators or interfacing with other logic equipment.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Type | Source Output Module |
| Output Channels | 8 Channels |
| Output Type | Sourcing (positive logic) |
| Rated Voltage | 24 VDC nominal |
| Load Current per Point | 0.5 A max |
| Isolation | Optical isolation per channel |
| Diagnostic Function | Channel-level fault detection |
| Mounting | DIN rail or panel mount |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Dimensions | 158 x 98 x 30 mm |
| Weight | 0.66 kg |
Applications
The 621-6550RC is widely used in process industries such as:
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Oil & Gas refineries
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Chemical processing plants
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Power generation facilities
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Water treatment systems
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Manufacturing automation
It is ideal for applications requiring robust sourcing outputs to control indicators, relays, solenoids, and other DC-powered devices.
Product Advantages
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Reliable Output Sourcing: Ensures stable and consistent output performance.
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Fault Detection: Integrated diagnostics enhance system safety and uptime.
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Compact Design: Small footprint suitable for space-limited enclosures.
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Easy Integration: Compatible with Honeywell TDC systems.
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High Isolation: Prevents signal interference between channels.
Frequently Asked Questions (FAQ)
Q1: What type of outputs does the 621-6550RC module provide?
A1: It provides sourcing digital outputs (positive logic).
Q2: Is this module compatible with Honeywell TDC 3000?
A2: Yes, it is fully compatible with both TDC 2000 and TDC 3000 systems.
Q3: How many output channels are available?
A3: The module offers 8 sourcing output channels.
Q4: What is the maximum load current per output?
A4: Each output channel can handle up to 0.5 A.
Q5: Does the module support diagnostics?
A5: Yes, it includes channel-level fault detection for improved safety.
Q6: What mounting options are supported?
A6: It can be mounted on DIN rails or panels.
Q7: What is the operating temperature range?
A7: The module operates between 0°C and 60°C.
Q8: Is optical isolation provided?
A8: Yes, each channel is optically isolated.
Q9: Can the module be used in hazardous areas?
A9: Use in hazardous areas depends on system certification and protective measures.
Q10: What are the physical dimensions and weight of the module?
A10: It measures 158 x 98 x 30 mm and weighs 0.66 kg.
Related Models in the Same Series
| Model Number | Description | Channels | Output Type | Dimensions (mm) | Weight |
|---|---|---|---|---|---|
| 621-6560RC | Sink Output Module | 8 | Sinking | 158 x 98 x 30 | 0.66 kg |
| 621-9940 | Relay Output Module | 8 | Relay | 158 x 98 x 30 | 0.70 kg |
| 621-6555 | Isolated Output Module | 8 | Isolated DC | 158 x 98 x 30 | 0.68 kg |
| 621-1100 | High Voltage Output Module | 4 | High Voltage | 158 x 98 x 30 | 0.75 kg |
| 621-9941 | Digital Output with Feedback | 8 | Source | 158 x 98 x 30 | 0.67 kg |
| 621-1180 | Mixed I/O Module | 4/4 | Input/Output | 158 x 98 x 30 | 0.70 kg |
Popular Honeywell Models
| Model Number | Description | Type | Dimensions (mm) | Weight |
|---|---|---|---|---|
| 900C32-0244-00 | ControlEdge RTU Module | Controller | 170 x 120 x 60 | 0.90 kg |
| CC-PCNT01 | C300 Processor Module | Controller | 190 x 130 x 35 | 0.85 kg |
| 8C-PAONA1 | Analog Output Module | Output Module | 149 x 119 x 40 | 0.60 kg |
| 8C-TAIXA1 | Analog Input IOTA | Input Module | 149 x 119 x 40 | 0.55 kg |
| FC-IO-0001 | I/O Expansion Module | I/O Module | 165 x 110 x 35 | 0.62 kg |
| 51309218-175 | Fieldbus Interface Module | Communication | 160 x 100 x 30 | 0.65 kg |
Frequently Asked Questions (FAQ)
Q1: What type of outputs does the 621-6550RC module provide?
A1: It provides sourcing digital outputs (positive logic).
Q2: Is this module compatible with Honeywell TDC 3000?
A2: Yes, it is fully compatible with both TDC 2000 and TDC 3000 systems.
Q3: How many output channels are available?
A3: The module offers 8 sourcing output channels.
Q4: What is the maximum load current per output?
A4: Each output channel can handle up to 0.5 A.
Q5: Does the module support diagnostics?
A5: Yes, it includes channel-level fault detection for improved safety.
Q6: What mounting options are supported?
A6: It can be mounted on DIN rails or panels.
Q7: What is the operating temperature range?
A7: The module operates between 0°C and 60°C.
Q8: Is optical isolation provided?
A8: Yes, each channel is optically isolated.
Q9: Can the module be used in hazardous areas?
A9: Use in hazardous areas depends on system certification and protective measures.
Q10: What are the physical dimensions and weight of the module?
A10: It measures 158 x 98 x 30 mm and weighs 0.66 kg.
Related Models in the Same Series
| Model Number | Description | Channels | Output Type | Dimensions (mm) | Weight |
|---|---|---|---|---|---|
| 621-6560RC | Sink Output Module | 8 | Sinking | 158 x 98 x 30 | 0.66 kg |
| 621-9940 | Relay Output Module | 8 | Relay | 158 x 98 x 30 | 0.70 kg |
| 621-6555 | Isolated Output Module | 8 | Isolated DC | 158 x 98 x 30 | 0.68 kg |
| 621-1100 | High Voltage Output Module | 4 | High Voltage | 158 x 98 x 30 | 0.75 kg |
| 621-9941 | Digital Output with Feedback | 8 | Source | 158 x 98 x 30 | 0.67 kg |
| 621-1180 | Mixed I/O Module | 4/4 | Input/Output | 158 x 98 x 30 | 0.70 kg |
Popular Honeywell Models
| Model Number | Description | Type | Dimensions (mm) | Weight |
|---|---|---|---|---|
| 900C32-0244-00 | ControlEdge RTU Module | Controller | 170 x 120 x 60 | 0.90 kg |
| CC-PCNT01 | C300 Processor Module | Controller | 190 x 130 x 35 | 0.85 kg |
| 8C-PAONA1 | Analog Output Module | Output Module | 149 x 119 x 40 | 0.60 kg |
| 8C-TAIXA1 | Analog Input IOTA | Input Module | 149 x 119 x 40 | 0.55 kg |
| FC-IO-0001 | I/O Expansion Module | I/O Module | 165 x 110 x 35 | 0.62 kg |
| 51309218-175 | Fieldbus Interface Module | Communication | 160 x 100 x 30 | 0.65 kg |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
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