Overview
The Schneider 140-DRA-840-00 is a discrete relay output module designed for the TSX Quantum and Modicon Quantum PLC systems. This 16-channel relay module provides discrete output control with 1 Normally Open (NO) contact per channel in Form A configuration, making it ideal for switching contactors, indicators, and small actuators in machine and process control applications.
Key Features
- Fast response time of ≤20 ms on input opening for rapid state switching
- Mechanical durability rated to 10,000,000 cycles and electrical durability to 500,000 cycles
- Internal overvoltage protection via varistor to safeguard connected devices
- Isolation ratings of 1780 Vrms AC between channels and 2500 V DC between channels and bus
- Standard module format compatible with Quantum PLC chassis
- Hot-swappable design—no need to stop the system for module replacement
Technical Specifications
- 16 discrete output channels per module
- Contact type: Relay 1 NO (Normally Open)
- Output voltage: 20–250 VAC, 30–150 VDC
- Isolation: 1780 Vrms AC (between channels); 2500 V DC (between channels and bus)
- Response time: ≤20 ms
- Contact life: 500,000 electrical cycles; 10,000,000 mechanical cycles
- Form: Standard module format
Typical Applications
- Machine automation and process control
- Switchgear and contactor control
- Indicator and alarm activation
- Motor starter circuits
- Solenoid valve and actuator switching
- Industrial production lines requiring discrete output control
Compatibility & Replacements
Compatible With
- TSX Quantum PLC systems
- Modicon Quantum controller platforms
- Quantum-series I/O chassis
Replaces / Drop-In Replacement For
- 140-DRA-840-00 (exact model)
- Equivalent Modicon Quantum 16-point relay output modules
Works With
- Concept software (Quantum programming environment)
- PLC Automation software
- Standard 24 VDC control circuits
- Multi-voltage output systems (20–250 VAC and 30–150 VDC)






