Digital Output Module DO821 | ABB 3BSE013250R1 Industrial Use
Manufacturer: ABB
-
Part Number: DO821 3BSE013250R1
Condition：New with Original Package
Product Type: Digital Output Module
-
Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB DO821 Digital Output Module (3BSE013250R1)
Product Description
The ABB DO821 (3BSE013250R1) is a robust digital output relay module designed for reliable control of external actuators, solenoids, and contactors in industrial automation systems. This module provides eight individually isolated relay outputs, ensuring precise and safe operation even in complex distributed control systems. Moreover, its compact design simplifies installation within ABB S800 I/O racks while maintaining high electrical performance.
Each channel is capable of switching both AC and DC loads up to 3 A, with galvanic isolation for improved system reliability. Therefore, the DO821 ensures protection against cross-channel interference and enhances safety in critical process applications. In addition, it integrates seamlessly with ABB 800xA and other S800 I/O-based control systems when used with compatible Module Termination Units (TU811, TU813, TU831, TU836, TU837, TU851).
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | DO821 |
| Product ID | 3BSE013250R1 |
| Module Type | Digital Output Relay Module (DO) |
| Number of Output Channels | 8 |
| Output Type | Relay, normally closed contacts |
| Output Voltage Range | 24–230 V AC/DC |
| Output Current Rating | Up to 3 A per channel |
| DC Load Capacity | 42 W per channel |
| Power Factor Requirement | cos φ > 0.4 |
| Isolation | Individually galvanic isolated channels |
| Dimensions (W × H × D) | 45 × 119 × 102 mm |
| Weight | 0.32 kg |
| Power Dissipation | Typ. 2.9 W |
| Environmental Compliance | RoHS compliant, WEEE small equipment |
| Customs Tariff Number | 85389099 |
| Applications | Process control, industrial automation, actuator and contactor switching |
| Country of Origin | Sweden |
FAQ
Q1: How many outputs does the DO821 module have?
The DO821 provides eight individually isolated relay outputs for external device control.
Q2: What voltage and current ranges are supported?
It supports 24–230 V AC/DC at up to 3 A per channel.
Q3: Is the module compatible with ABB S800 I/O systems?
Yes, it integrates seamlessly with ABB 800xA and other S800 I/O racks.
Q4: Which termination units are required for installation?
Use TU811, TU813, TU831, TU836, TU837, or TU851 for proper mounting and wiring.
Q5: Can it safely operate multiple outputs simultaneously?
Yes, each channel is individually galvanically isolated for reliable multi-channel operation.