AI625 3BHT300036R1 | ABB 16-Channel Analog Input Module for S800 I/O
The ABB AI625 (3BHT300036R1) is a 16-channel analog input module designed for ABB S800 I/O and Advant OCS / Harmony automation systems. It acquires analog field signals from transmitters, sensors, and process instruments, converts them into digital data, and delivers reliable input information to PLC, DCS, or process controllers.
This module supports channel-level configuration, allowing different analog signal types to be mixed within the same module. It is commonly used in process monitoring applications such as pressure, flow, level, temperature transmitter readback, and general-purpose analog signal acquisition.
- 16 analog input channels, configurable per channel
- Supports 4–20 mA / 0–20 mA and ±10 V DC signals
- 12-bit A/D resolution for stable process measurement
- Channel-level diagnostics including open-circuit detection for current inputs
- LED indicators for module status and fault feedback
- Compatible with ABB S800 I/O and Advant OCS / Harmony systems
- Suitable for System 800xA, AC 800M, and legacy ABB control systems
- Pressure and flow transmitter input
- Level and temperature process monitoring
- DCS and PLC analog input expansion
- System 800xA and AC 800M I/O projects
- Advant OCS / Harmony system maintenance and replacement
- Spare module stocking for process plants and OEM panels
| Product Name | ABB AI625 Analog Input Module |
|---|---|
| Order Code | 3BHT300036R1 |
| Brand | ABB |
| Product Family | S800 I/O / Advant OCS MPS III |
| Product Type | 16-Channel Analog Input Module |
| Input Signals | 4–20 mA / 0–20 mA / ±10 V DC, channel configurable |
| Resolution | 12-bit |
| Accuracy | ±0.1% of span typical @ 25°C; verify per datasheet |
| Isolation | Field-side to system backplane isolation; group isolation typical |
| Installation | S800 I/O rack / DIN-rail mounted with TU/TB termination unit |
| Protection | IP20 typical for control cabinet installation |
- High Channel Density 16 analog inputs per module help reduce rack space and wiring complexity.
- Flexible Signal Configuration Current and voltage inputs can be configured per channel, supporting mixed sensor applications.
- Built-in Diagnostics Open-circuit detection and status LEDs support faster field troubleshooting.
- Broad ABB System Compatibility Suitable for S800 I/O, System 800xA, AC 800M, and Advant OCS / Harmony environments.
- 1 × ABB AI625 Analog Input Module
- Order code: 3BHT300036R1
- Original packaging, if available
- Standard export packing for safe delivery
We supply ABB S800 I/O modules for global industrial automation projects. Please contact our sales team with your required quantity, destination country, and controller type. We can assist with product confirmation, lead time, and available documentation.
AI625 is commonly used as an upgraded or replacement module for older AI620 applications, but compatibility depends on the controller, firmware, termination unit, and configuration. Please confirm your system details before ordering.
AI625 is typically installed with S800 I/O termination units such as TU810 or TU812, depending on wiring and application requirements. Always verify the correct base model with the official documentation.
Hot swapping depends on the termination unit, system configuration, and controller firmware. It should only be performed according to ABB installation guidelines.
We can provide available product information upon request. For official specifications, always refer to the ABB datasheet or authorized documentation.


ABB 16-Channel Analog Input Module
,S800 I/O Analog Input Module
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