ABB AI825 S800 I/O Analog Input Module

ABB AI825 Galvanically Isolated Analog Input Unit
ABB AI825 Galvanically Isolated Analog Input Unit
ABB AI825 Galvanically Isolated Analog Input Unit
ISOLATED PROCESS SIGNAL INPUT

ABB AI825 S800 I/O Analog Input Module

Four individually isolated channels for bipolar current and voltage measurement.

Product overview

ABB AI825 is an S800 I/O analog input module designed for process applications requiring individually galvanically isolated channels. Its four channels have separate returns and accept bipolar current and voltage signals. ABB documentation specifies current ranges covering −20 to +20 mA and 0(4) to 20 mA, together with voltage ranges covering −10 to +10 V and 0(2) to 10 V. Conversion resolution is 14 bits plus sign. The module supports distributed process measurement within compatible S800 I/O installations. Replacement planning should verify the exact AI825 designation, signal range, channel wiring, ModuleBus configuration, terminal unit and controller engineering.

Original new
Product condition
In stock
Availability
With 1 year warranty
Commercial warranty

Condition, availability and warranty are Stockoems commercial terms.

Signal data matrix

Manufacturer
ABB
Complete part number
AI825
Product type
Analog input module
System
S800 I/O
Channels
4 individually isolated
Returns
Separate channel returns
Current input
−20…+20 mA; 0(4)…20 mA
Voltage input
−10…+10 V; 0(2)…10 V
Resolution
14 bits plus sign

Interface topology

Field signals
Current or voltage
ABB AI825
4 isolated conversions
S800 I/O
Process data path

Channel architecture

CHANNELS 1–4

Each analog channel is galvanically isolated and uses a separate return.

BIPOLAR MEASUREMENT

Current and voltage ranges support positive and negative process signals.

DIGITAL CONVERSION

ABB specifies 14-bit resolution plus sign for measured analog values.

Typical applications

Isolated process transmitter inputs
Bipolar voltage measurement
Distributed S800 I/O stations
DCS cabinet maintenance and replacement

Compatibility and revision notice

Verify the exact AI825 designation, configured signal type, current or voltage range, channel polarity, separate-return wiring, terminal unit, ModuleBus arrangement, controller hardware and engineering database before replacement. AI820 and other visually similar S800 I/O modules use different channel architectures and must not be treated as direct substitutes.

Frequently asked questions

What is ABB AI825?

AI825 is a four-channel analog input module for the ABB S800 I/O system.

Are the channels isolated?

Yes. ABB specifies four individually galvanically isolated channels with separate returns.

Which current signals are supported?

The documented ranges include −20 to +20 mA and 0(4) to 20 mA.

Which voltage signals are supported?

The documented ranges include −10 to +10 V and 0(2) to 10 V.

What should be checked before ordering?

Check the model, signal range, polarity, channel wiring, terminal unit, ModuleBus configuration and controller engineering.

Request an AI825 procurement review

Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.

Email: sales6@apterpower.com   WhatsApp: +86 18159889985

SERVICE CONTROL ROUTE

Procurement support for ABB AI825

A documented route for identity checks, technical review, condition evidence, protective handling and international delivery coordination.

01 / Verification

Model and suffix verification, condition confirmation, technical compatibility review, and product and label photo confirmation are completed against the purchasing request.

02 / Handling

Protective packaging is selected for industrial electronics, with attention to connectors, terminals, housing edges and moisture control.

03 / Delivery

Worldwide shipping, shipment tracking and customs documentation are coordinated after destination and transport requirements are reviewed.

Industrial automation procurement team reviewing AI825 documentation
Documentation and requirement coordination
Engineers coordinating AI825 compatibility and purchasing requirements
Technical compatibility collaboration

Quality and after-sales checkpoints

Label details and visible condition are checked before packing.
Written warranty terms accompany the commercial offer.
A return authorization process is available for eligible after-sales cases.
After-sales response keeps purchasing and engineering contacts aligned.

Our service advantage is a traceable workflow linking product identity, photo evidence, packaging preparation, logistics coordination and document readiness. Lead time and quantity are confirmed only after an actual availability review.

Supplier qualification FAQ

How should an end user qualify an industrial automation supplier?

Request the complete model and suffix, clear condition terms, current product and label photos, written warranty coverage, and a documented return process.

What should a purchasing team verify?

Confirm legal company details, quotation consistency, traceable communication, packaging scope, shipping documents and payment instructions before placing an order.

Which warning signs matter to engineers?

Unclear suffixes, reused photos, missing label evidence, unsupported compatibility claims, pressure for immediate payment and refusal to document warranty or returns are common risk signals.

Coordinate your AI825 service review

Share the complete part number, quantity, destination country and product label photos for availability, condition, compatibility and shipping review.

Email: sales6@apterpower.com   WhatsApp: +86 18159889985

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