Home > Products > ABB > ABB Advant 800xA
Product Name: Digital Input Module
Brand Name: ABB
Model Number: DI821 3BSE008550R1
Place of Origin: Sweden
Warranty: 12 Months
Whatsapp：+86 18020776782
Email：[email protected]
Commercial Terms
Minimum Order Quantity |
1 Piece |
Price |
Contact for Jim |
Packaging Details |
Original new Factory Sealed |
Delivery Time |
3–7 Days |
Payment Terms |
T/T |
Shipping Method |
DHL / FedEx / UPS / TNT |
Supply Ability |
In stock |
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Sales |
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Jim Pei |
| Product Name | ABB FI830F DI821 3BSE008550R1 Digital Input Module |
| Manufacturer | ABB |
| Product Type | Digital Input Module |
| Part Number | DI821 3BSE008550R1 |
| Estimated shipping dimensions | 16.5x16x8cm |
| Weight | 0.32kg |
| Place of shipment | Xiamen, China |
| Country of origin | SWEDEN |
| Channel Type | DI (Digital Input) |
| Number of Inputs | 8 channels |
| Input Voltage | 230V AC/DC |
| Isolation | Individually galvanically isolated (each channel separate) |
| Compatible Termination Units | TU811, TU813, TU831, TU839, TU851 |
| WEEE Category | 5 – Small Equipment (no external dimension >50 cm) |
| Compatible Systems | 800xA (v4.0‑6.0), Advant OCS, Compact Product Suite |
The ABB DI821-3BSE008550R1 is an 8-channel digital input module designed for S800 I/O systems. It supports 230V AC/DC field signals and provides full galvanic isolation for each individual channel as well as from the backplane. This makes it suitable for high-voltage industrial environments where electrical noise, ground potential differences, or fault conditions are common.
The module is compatible with multiple ABB systems including 800xA, Advant OCS, and Compact Product Suite, and works with several termination units (TU811, TU813, TU831, TU839, TU851), enabling flexible wiring options for different installation requirements.
Q1: What is the main purpose of DI821-3BSE008550R1?
A: The DI821-3BSE008550R1 is used to collect 8-channel 230V AC/DC digital input signals from industrial field devices and transmit them safely to an S800 I/O control system.
Q2: Can DI821-3BSE008550R1 handle both AC and DC signals?
A: Yes, the DI821-3BSE008550R1 supports both 230V AC and DC input signals, making it suitable for mixed legacy industrial installations.
Q3: What makes DI821-3BSE008550R1 different from standard 24V input modules?
A: The DI821-3BSE008550R1 supports high-voltage (230V) inputs and provides full galvanic isolation per channel, whereas standard 24V modules typically require external relays or converters for such signals.
Q4: What does galvanic isolation mean in DI821-3BSE008550R1?
A: In the DI821-3BSE008550R1, galvanic isolation means each input channel is electrically separated from all other channels and the backplane, preventing fault propagation between channels.
Q5: Which termination units can be used with DI821-3BSE008550R1?
A: The DI821-3BSE008550R1 is compatible with TU811, TU813, TU831, TU839, and TU851 termination units, allowing flexible wiring configurations.
Q6: Can DI821-3BSE008550R1 be used in legacy systems?
A: Yes, the DI821-3BSE008550R1 is compatible with ABB legacy platforms such as Advant OCS and modern systems like 800xA, making it suitable for system upgrades and hybrid installations.
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