DO801 3BSE020510R1 | ABB | S800 I/O Digital Output Module

Product Overview

The ABB DO801 (3BSE020510R1) serves as a high-density Digital Output (DO) module within the S800 I/O system. This module provides 16 isolated channels designed to drive solenoid valves, relays, and indicators in industrial automation environments. We supply this unit as 100% Brand New and Original, ensuring seamless integration into AC 800M controller architectures. It executes precise discrete control commands while protecting the internal system bus from field-side electrical disturbances.

Technical Specifications

The DO801 utilizes 16 independent channels organized into a single isolated group to manage field actuators:

• Part Number: DO801 / 3BSE020510R1

• Number of Channels: 16

• Channel Type: Digital Output (DO)

• Output Current: 0.5 A per channel

• Isolation: Isolated in one group

• Protection: Short-circuit proof outputs

• Width: 86.1 mm

• Height: 102 mm

• Depth: 58.5 mm

• Weight: 0.24 kg

• Compliance: RoHS Directive 2011/65/EU

Engineering Advantages

• Built-in Short Circuit Protection: The DO801 incorporates robust protection circuitry on every channel. If a field-side short circuit occurs, the module automatically limits the current and prevents damage to the internal electronics, eliminating the need for external individual channel fusing.

• High-Density Control: This module manages 16 output points within a compact 86.1 mm wide footprint. This density allows engineers to maximize the utilization of S800 ModuleBus space, reducing the number of required I/O stations in large-scale DCS cabinets.

• Group Isolation Strategy: The design isolates all 16 channels as a single group from the ModuleBus. This electrical barrier prevents field-side ground loops and transient voltage spikes from reaching the controller, maintaining overall system stability in electrically noisy environments.

• Efficient Thermal Dissipation: The low-power consumption of the 0.5A channels minimizes heat generation within the module housing. This thermal efficiency supports vertical or horizontal mounting in high-density configurations without requiring specialized forced-air cooling.

• Seamless Hot-Swap Capability: When used with a compatible Module Termination Unit (MTU), the DO801 supports Removal and Insertion Under Power (RIUP). Maintenance teams can replace a module without shutting down the entire I/O cluster, significantly reducing plant downtime.

FAQs

• Does the DO801 require an external 24V DC power supply? Yes. You must provide a 24V DC field power source to the module via the termination unit to drive the 0.5A output loads on the 16 channels.

• Can I drive inductive loads directly with this module? The DO801 handles many standard industrial solenoids and relays directly; however, we recommend using external flyback diodes for highly inductive loads to prolong the lifespan of the internal output transistors.

• Is this a refurbished or surplus unit? Absolutely not. We guarantee this DO801 (3BSE020510R1) is 100% Brand New original hardware. It arrives in the original ABB factory-sealed packaging with all serial numbers and documentation intact.

• What happens if a channel experiences an overload? The module detects the overcurrent condition and shuts down the affected channel to protect the circuitry. Once you clear the fault, the module restores normal operation based on the controller's logic.