Schneider Electric 140DRA84000 Quantum Relay Output Module

Product Description

The Schneider Electric 140DRA84000 is a relay-based discrete output module developed for the Modicon Quantum PLC platform. This standard-format module provides 16 isolated relay output channels, each configured with a single normally open (NO) contact for dependable switching of AC and DC loads in industrial automation systems.

Designed for mixed-voltage control applications, the 140DRA84000 supports output ranges from 20–250 V AC and 5–150 V DC, allowing integration with relays, contactors, pilot devices, alarms, and electromechanical loads. The module combines high electrical durability with internal overvoltage suppression, making it suitable for continuous-duty industrial environments.

Each output channel uses Form A relay contacts and includes status indication through dedicated front-panel LEDs. The module also features reinforced isolation between channels and the backplane bus, improving operational safety and reducing electrical interference in control cabinets.

Schneider Electric discontinued the 140DRA84000 relay module in January 2023. Long-term service support is expected through December 2030. The officially recommended replacement is the Modicon X80 BMXDRA0815 relay output module.

Technical Specifications

Operational Characteristics

• 16 relay-based discrete outputs for AC/DC switching
• Form A normally open contact configuration
• Compatible with Modicon Quantum backplanes
• Integrated varistor protection against voltage spikes
• High relay endurance for repetitive industrial operations
• LED diagnostics for channel activity and module status
• Suitable for resistive, inductive, and pilot-duty loads
• Standard Quantum housing for easy rack installation

Recommended Replacement Model

The discontinued 140DRA84000 can be replaced with:

• BMXDRA0815 — Modicon X80 relay output module with 8 NO relay outputs

Migration planning should include I/O mapping and rack compatibility verification when upgrading from Quantum to X80 platforms.

Typical Industrial Applications

• PLC relay output expansion
• Process control systems
• Motor starter interfacing
• Alarm and annunciator systems
• Industrial panel automation
• HVAC control systems
• Water treatment facilities
• Packaging and conveyor equipment

FAQ

What type of outputs does the 140DRA84000 use?

The module uses electromechanical relay outputs with normally open Form A contacts.

Can the module switch both AC and DC loads?

Yes. The module supports AC loads up to 250 V and DC loads up to 150 V depending on application current requirements.

Is surge suppression included?

Yes. Internal varistor-based overvoltage protection is integrated to reduce relay contact stress caused by transient spikes.

Is the 140DRA84000 still manufactured?

No. Schneider Electric discontinued this model in 2023, although support service remains available until 2030.