ABB A30-30-10RT – Compact Relay Terminal for Industrial Control Systems

The ABB A30-30-10RT is a terminal block module designed to interface with ABB’s AC30 series programmable logic controllers (PLCs), particularly in distributed I/O setups. It’s typically used in automation environments where signal integrity and ease of maintenance matter—like packaging lines or pump control panels. One thing I appreciate is how it simplifies wiring by consolidating relay outputs into a single, pluggable unit, which can save time during both installation and troubleshooting.

Key Features

• Integrated Relay Output Module: Provides 10 dry contact relay outputs, ideal for switching AC/DC loads up to 2A per channel—useful when driving solenoids, contactors, or alarm indicators.
• Plug-in Design with Status Indication: Each relay has an LED indicator, so you can quickly verify output activation without a multimeter. From my experience, this makes commissioning much smoother.
• Tool-less Connection Option: Uses spring clamp terminals in many cases, reducing wiring time compared to screw terminals—especially helpful during large-scale panel builds.
• Hot-Swappable Capability: In most configurations, the module can be replaced without powering down the entire rack, minimizing downtime during maintenance.
• Compatibility with AC30 Series: Designed specifically for use with ABB AC30 PLCs, ensuring seamless integration and firmware-level diagnostics.

Technical Specifications

Application Fields

This module shows up frequently in mid-tier automation systems—think water treatment skids, conveyor interlocks, or HVAC control panels. It seems to be favored in applications where discrete on/off control is needed but full digital I/O expansion isn’t justified. Some customers have mentioned using it as a local override interface, where operators need physical relay isolation from the main PLC logic.

Advantages & Value

Procurement teams often find value in its compatibility with existing AC30 ecosystems—no need for gateways or protocol converters. That reduces integration risk. You might notice that while it’s not the cheapest relay module on the market, the reduction in engineering hours and spare part fragmentation tends to justify the cost over time. Also, because ABB still actively supports the AC30 line, firmware updates and technical documentation remain accessible.

Installation & Maintenance

Install in a standard IP20-rated control cabinet with adequate ventilation—don’t stack modules too tightly, especially in high-ambient environments. Make sure DIN rail is securely mounted and free of paint or debris. Wiring should be 0.2–2.5 mm² stranded with ferrules recommended for reliability. For maintenance, periodic visual inspection of connections every 6–12 months helps catch loosening due to thermal cycling. While the relays are sealed, cleaning dust buildup with compressed air improves longevity. Firmware updates are handled through the CPU module, so keep your programming software current.

Quality & Certifications

The A30-30-10RT carries CE, UL Listed (File No. E103195), and RoHS compliance—typical for industrial components sold in North America and EU markets. It’s also designed under ISO 9001 quality management standards. We offer a standard 365-day warranty against manufacturing defects. Given ABB’s global service network, replacement units are usually available within a week if stock is confirmed.

Order Placement & Delivery

In-stock units ship within one week after receiving 50% advance payment. Final payment is due before dispatch. Full delivery takes no more than four weeks if sourced from regional warehouses. We use FedEx, UPS, or DHL depending on destination and urgency. Express shipping options are available upon request.