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- A6740
- 16-Channel Output Relay Module
- USA
- 60 x 128.4 x 160 mm
- 0.45 kg
- Xiamen, China
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Product Name: Emerson A6740 16-Channel Output Relay Module
Product Overview
The Emerson A6740 is a high-performance 16-channel output relay module, specifically designed for industrial automation and process control applications. As part of Emerson’s advanced control system solutions, this module ensures precise and reliable switching operations, making it ideal for applications that require seamless control over output devices such as alarms, motors, solenoids, and lighting systems.
Engineered for high durability, the A6740 features robust relay outputs that can handle high voltage and current loads while maintaining optimal performance. It integrates effortlessly with Emerson’s distributed control system (DCS) and programmable logic controllers (PLCs), enabling real-time monitoring and control for industrial processes.
With its compact form factor (60 x 128.4 x 160 mm) and lightweight design (0.45 kg), the A6740 is easy to install and maintain. It operates reliably in harsh industrial environments, offering high resistance to electrical noise and ensuring long-term stability.
Product Parameters
| Parameter | Value |
|---|---|
| Module Type | 16-Channel Output Relay Module |
| Number of Output Channels | 16 |
| Relay Type | Electromechanical Relay |
| Contact Rating | 250V AC / 30V DC, 5A max |
| Control Voltage | 24V DC |
| Operating Temperature | -40°C to 70°C |
| Storage Temperature | -55°C to 85°C |
| Humidity Range | 5% to 95% RH (non-condensing) |
| Response Time | < 10ms |
| Mounting Type | DIN Rail / Panel Mount |
| Dimensions | 60 x 128.4 x 160 mm |
| Weight | 0.45 kg |
Applications
The Emerson A6740 is widely used in industrial automation, energy, and process industries where high-reliability relay switching is required. Some key applications include:
- Process Control Systems: Manages critical process control applications, ensuring precise output activation in oil & gas, chemical plants, and manufacturing.
- Power Generation & Distribution: Provides reliable relay control for turbines, substations, and switchgear applications.
- Factory Automation: Controls various output devices, including alarms, motors, and valves in industrial production lines.
- Building Automation: Used in HVAC, lighting, and security systems for smart building management.
- Water Treatment Plants: Supports pump control, valve switching, and emergency alarm signaling.
Advantages
- High Reliability & Durability: Built with industrial-grade relay contacts, ensuring longevity and resistance to wear, even under heavy load conditions.
- Compact & Lightweight: With dimensions of 60 x 128.4 x 160 mm and a weight of 0.45 kg, it is ideal for space-constrained control panels.
- Fast Response Time: Switching time of less than 10ms, ensuring precise control for critical industrial applications.
- Wide Operating Temperature Range: Operates between -40°C to 70°C, making it suitable for harsh industrial environments.
- Seamless Integration: Compatible with Emerson DCS and PLCs, allowing easy configuration within existing control networks.
- Multiple Mounting Options: Can be installed using a DIN rail or panel mount, providing flexibility in system integration.
Brand: Emerson
Series: Emerson Control System Series
Related Models from the Same Series
| Model | Description | Channels | Voltage Rating | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| A6750 | 32-Channel Digital Output Module | 32 | 24V DC | 60 x 128 x 160 | 0.50 |
| A6760 | 8-Channel Isolated Analog Output Module | 8 | ±10V, 4-20mA | 60 x 128 x 160 | 0.55 |
| A6770 | 16-Channel Digital Input Module | 16 | 24V DC | 60 x 128 x 160 | 0.45 |
| A6780 | High-Speed Pulse Output Module | 4 | 5V, 24V | 60 x 128 x 160 | 0.48 |
| A6790 | 16-Channel Relay Input Module | 16 | 250V AC | 60 x 128 x 160 | 0.50 |
Top 5 Popular Models from Emerson
| Model | Description | Channels | Voltage Rating | Dimensions (mm) | Weight (kg) |
| A6735 | 16-Channel Digital Output Module | 16 | 24V DC | 60 x 128 x 160 | 0.45 |
| A6720 | 16-Channel Relay Output Module | 16 | 250V AC | 60 x 128 x 160 | 0.50 |
| A6710 | 8-Channel Isolated Digital Output | 8 | 5V, 24V | 60 x 128 x 160 | 0.42 |
| A6705 | 32-Channel Digital Input Module | 32 | 24V DC | 60 x 128 x 160 | 0.50 |
| A6700 | High-Speed Pulse Input Module | 4 | 5V, 24V | 60 x 128 x 160 | 0.48 |
Frequently Asked Questions (FAQ)
Q1: What is the purpose of the A6740 relay module?
A1: The A6740 is designed to provide 16 relay output channels, allowing for the switching of industrial devices such as motors, alarms, and solenoids.
Q2: Can this module operate in harsh environments?
A2: Yes, it supports an operating temperature range from -40°C to 70°C, making it ideal for demanding industrial applications.
Q3: What control voltage does it require?
A3: The module operates on 24V DC control voltage.
Q4: Is the A6740 compatible with other Emerson PLCs?
A4: Yes, it integrates seamlessly with Emerson control systems, including DeltaV and Ovation DCS.
Q5: How is this module mounted?
A5: It can be mounted using either DIN rail or panel mounting, providing flexible installation options.
Q6: What is the maximum switching capacity of the relay contacts?
A6: The relays are rated for 250V AC / 30V DC at 5A max.
Q7: Does this module support redundant operation?
A7: While the A6740 itself does not feature redundancy, it can be configured within a redundant control system.
Q8: What industries use the A6740 relay module?
A8: It is used in process control, power generation, factory automation, and water treatment applications.
Q9: How fast does the relay switch?
A9: The module has a response time of less than 10ms.
Q10: What makes the A6740 unique?
A10: Its high reliability, compact design, and fast response time make it a top choice for industrial relay control applications.
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