ABB DO814 3BUR001455R1 – 32-channel 24 VDC digital output module for compact, reliable S800 I/O

The ABB DO814 3BUR001455R1 is a 32-channel 24 VDC digital output module in the S800 I/O family. From my experience, it’s a solid choice when you need dense, cost-effective discrete outputs for distributed control systems—think interposing relays, pilot lights, small solenoids, and general panel signaling. One thing I appreciate is how neatly it drops into the S800 ecosystem via standard terminal units, so scaling a cabinet is typically straightforward.

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in-stock items; no more than one month at the latest
• Payment terms: 50% advance payment; full payment before delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• High-density outputs (32 ch, 24 VDC) – Ideal where cabinet space is tight and channel counts are high.
• Sourcing (PNP) digital outputs – Simplifies wiring with common 0 V returns in many panels.
• Fits S800 I/O terminal units (TU8xx series) – Quick install on standard DIN-rail terminal units for fast replacement and expansion.
• Field power segregation – ModuleBus power is separate from field 24 VDC, which typically improves robustness and isolation practices.
• Status indication – Channel and module status LEDs help technicians verify states at a glance during commissioning.
• Broad controller compatibility – Commonly used with ABB AC 800M / Freelance via S800 communication interfaces, and in many cases with third-party systems through gateways.
• Compact form factor – Keeps cabinet layouts clean and serviceable, even in retrofit projects.

Technical Specifications

Application Fields

You might notice this module most in medium to large process installations where dense digital output blocks save cabinet space:

• Power and water utilities – breaker signaling, pump starters via interposing relays, panel indications
• Oil & gas and petrochemical – solenoid valves, ESD panel lights (non-safety layer), skid I/O expansions
• Food & beverage and pharmaceuticals – conveyors, diverters, compact machinery outputs
• Metals, mining, and cement – field signaling, interlocks, and MCC interface signaling
• Marine and HVAC systems – alarms, status lights, auxiliary relay control in distributed cabinets

Advantages & Value

• Space and cost efficiency – 32 channels per module typically reduces rail length and wiring accessories.
• Lifecycle continuity – Part of ABB’s widely deployed S800 I/O, which tends to ease spares management and long-term service.
• Flexible system integration – Works with common ABB controllers and communication interfaces; retrofit-friendly through gateways.
• Maintenance-friendly – LEDs and standardized terminal units help technicians troubleshoot quickly during shifts.
• Procurement clarity – Stable model identity (DO814 3BUR001455R1) simplifies stocking and cross-site standardization.

Installation & Maintenance

• Cabinet environment – Install in a ventilated control cabinet; keep ambient within 0–55 °C and avoid condensation. Allow front access for LED view and module extraction.
• Terminal units – Mount to S800 TU8xx series terminal units on DIN-rail. Verify the TU model supports 32-channel DO wiring and your field power distribution plan.
• Wiring practices – Use 24 VDC field supply sized for worst-case load. Group fusing and proper 0 V returns are recommended; include surge suppression on inductive loads.
• Grounding & shielding – Bond cabinet PE and route signal returns cleanly. Separate power and signal paths where possible to minimize noise.
• Commissioning – Check channel states using front LEDs and controller diagnostics. Verify each load path with interposing relays or lamps before live handover.
• Routine maintenance – Periodically inspect terminal tightness, check load current vs. design, and clean dust. Firmware on the controller/interface side should be kept current; the I/O module itself typically requires no firmware updates.

Quality & Certifications

• Conformity: CE marking; RoHS-compliant; cULus or equivalent approvals are common within the S800 range
• Manufacturer’s warranty: typically 12 months from ABB
• Supply warranty from us: 365 days as stated above

Related and supporting components

• S800 Terminal Units (TU8xx) – e.g., TU810/TU812 for DIN-rail installation and field wiring breakouts.
• Power distribution modules – For segregated 24 VDC field supplies and group fusing.
• Communication interfaces – ABB CI modules (e.g., Profibus, Ethernet-based) linking S800 I/O to AC 800M or Freelance.
• Interposing relays and suppressors – Recommended when switching inductive loads to extend output longevity.