Schneider 140DRC83000 Quantum Relay Output

Schneider 140DRC83000 Modicon Quantum 8-Channel Relay Output Module

Product Introduction

The 140DRC83000 is a versatile relay output module designed for the Modicon Quantum automation platform, providing eight independent Form C (changeover) relay outputs. Each channel offers both normally open (NO) and normally closed (NC) contacts, giving you flexibility in controlling diverse field devices such as motors, valves, solenoids, and indicator lamps. This module handles AC voltages from 20 to 250 V and DC voltages from 5 to 150 V, with a maximum continuous current of 5 A at 250 V AC or 30 V DC (resistive load). Furthermore, the 140DRC83000 includes internal varistor protection against overvoltage, ensuring long-term reliability in industrial environments. Its robust isolation ratings and comprehensive marine certifications make it suitable for demanding applications including shipbuilding, power generation, and heavy manufacturing.

Key Technical Specifications

Output Characteristics and Contact Configuration

The 140DRC83000 provides eight outputs, each configured as a Form C contact with both NO and NC terminals. This design allows you to wire either normally open or normally closed circuits without external relays. The output voltage ranges from 20 to 250 V AC and 5 to 150 V DC, covering most standard industrial loads. For resistive loads, the maximum switching capacity reaches 1250 VA, and the continuous current rating is 5 A at 250 V AC or 30 V DC (at 60 °C ambient). Additionally, the module handles tungsten lamp loads up to 1/4 HP with a power factor of 0.4, and supports surge currents up to 20 A for 10 ms (capacitive loads). This wide range ensures the 140DRC83000 can drive everything from small indicator lights to medium-sized contactors.

Response Time and Switching Frequency

The relay outputs exhibit a response time of 10 ms for OFF-to-ON transitions and 20 ms for ON-to-OFF transitions, which is typical for electromechanical relays. The switching frequency reaches 30 Hz for resistive loads, while inductive loads follow the formula F = 0.5 / I²L. Such performance makes the 140DRC83000 suitable for moderate-speed switching applications like conveyor control and batch processing.

Contact Durability and Protection

Mechanical durability is rated at 10 million cycles, ensuring long service life in high-cycle applications. Electrical durability varies by load: for resistive loads at 5 A/30 V DC, it achieves 100,000 cycles; at 5 A/250 V AC resistive, it reaches 200,000 cycles; and for 100 mA at 30-150 V DC with L/R = 10 ms, it delivers 100,000 cycles. The module incorporates internal varistor protection at 275 V across each output, safeguarding against inductive kickback from relays and solenoids. Furthermore, isolation between channels is rated at 1780 Vrms AC (or 2500 V DC), while isolation between channels and the bus is also 1780 Vrms AC (or 2500 V DC) for 1 minute, providing excellent protection against ground faults and transients.

Addressing and Power Dissipation

The 140DRC83000 requires only 0.5 output word of addressing space, making it memory-efficient for large I/O configurations. Power dissipation is calculated as 2.75 W plus 0.5 W for each active output, helping you estimate thermal load within the control cabinet. The bus current requirement is 560 mA at 5 V DC.

Mechanical and Environmental Specifications

Physical Dimensions and Weight

This standard-format module measures 16.3 x 4.5 x 31.2 cm and weighs approximately 0.3 kg (0.7 lb) . The package weight including packaging materials is 0.475 kg (16.8 oz) , making it lightweight and easy to handle during installation.

Environmental Ratings and Certifications

The 140DRC83000 carries an impressive array of certifications including UL 508, CSA C22.2 No 142, FM Class 1 Division 2 (hazardous locations), GL (Germanischer Lloyd), DNV, RINA, ABS (American Bureau of Shipping), and RMRS (Russian Maritime Register). This makes it ideal for marine, offshore, and hazardous-area applications. The operating temperature ranges from 0 °C to 60 °C (32 °F to 140 °F) , with storage from -40 °C to 85 °C (-40 °F to 185 °F). Relative humidity tolerance is 95% without condensation, and the operating altitude extends to 5,000 meters (16,404 ft) . For electromagnetic immunity, it withstands 4 kV contact discharge and 8 kV air discharge (IEC 801-2), plus 9.1 V/m radiated fields from 80 to 2000 MHz (IEC 801-3).

Local Status Indication

Ten LEDs provide clear visual diagnostics: one green Active LED indicates bus communication, one red Fault LED signals external faults (such as overcurrent or short circuit), and eight green LEDs show the ON/OFF status of each output channel. These indicators enable rapid troubleshooting without requiring a programming terminal.

Installation Guidelines

Installing the 140DRC83000 is straightforward. Begin by powering down the rack and inserting the module into any standard slot of the Modicon Quantum backplane. Secure the module by tightening the retaining screws. Next, wire the field devices to the removable terminal block, paying careful attention to the NO and NC contact labeling. For AC loads, ensure the voltage does not exceed 250 V AC; for DC loads, stay within the 5-150 V DC range. Connect the common (COM) terminals appropriately for each output group. If you are driving inductive loads such as relays or solenoids, the internal varistor provides adequate protection, but we recommend adding external snubber circuits for extremely noisy environments. After wiring, apply power and verify the Active LED illuminates. Test each output by energizing the corresponding point from the CPU and confirming the green channel LED turns on. For marine installations, ensure the module is mounted away from direct moisture exposure despite its IP20 rating.

Packaging List

The shipping package for the 140DRC83000 includes:

• One 140DRC83000 relay output module

• One 8-position removable terminal block (screw type)

• One printed quick-start guide (multilingual)

• One anti-static protective bag

Note: Field wiring, mounting hardware, and external suppression devices are sold separately.

Shipping Information

All orders are dispatched via FedEx, UPS, or DHL with comprehensive tracking and insurance. Standard delivery typically takes 3-7 business days, depending on the destination. Express shipping options are available upon request.

Frequently Asked Questions

1. Can the 140DRC83000 switch both AC and DC loads on the same module?
Yes. Each output channel can independently handle AC or DC loads within the specified voltage ranges (20-250 V AC or 5-150 V DC), but all channels on a single module share the same common return.

2. What happens if I exceed the maximum switching current?
Exceeding the 5 A continuous rating may cause overheating and premature contact wear. The module does not have built-in overcurrent protection, so we recommend external fuses or circuit breakers for high-current loads.

3. Is this module suitable for direct motor control?
For small motors up to 1/4 HP (tungsten load), yes. However, for larger motors, we recommend using the 140DRC83000 to drive external contactors or motor starters rather than switching the motor directly.

4. What is the purpose of the red Fault LED?
The red Fault LED illuminates when an external fault is detected, such as a short circuit on the output wiring or an overcurrent condition. Check your field wiring if this LED lights up.

5. Can I use this module in a redundant Quantum system?
Yes. The 140DRC83000 works in standard Quantum racks within redundant configurations. Note that outputs will follow the active CPU; ensure your application logic handles output state synchronization accordingly.