In industrial automation and electrical control applications, relays play a crucial role in ensuring precise switching, reliability, and safety. The 782XDXH21-24D General Purpose Relay by Schneider Electric is one of the most versatile and durable relays available in the market today. Designed with a hermetically sealed 4PDT (Four-Pole Double-Throw) configuration, this relay is ideal for power distribution, automation, and hazardous environments.
This article provides a detailed overview of the 782XDXH21-24D relay, including its specifications, key features, applications, circuit diagrams, and use cases. Additionally, we will explore its role in different industries across the USA, India, Australia, Europe, and beyond.
Overview of the 782XDXH21-24D Relay
The 782XDXH21-24D is a high-performance general-purpose relay designed to handle industrial applications where durability and reliability are critical. It is a part of Schneider’s 782H series, which consists of hermetically sealed relays meant for tough working conditions.
Key Specifications
Manufacturer: Schneider Electric
Series: 782H Series
Relay Type: General Purpose Power Relay
Contact Configuration: 4PDT (Four-Pole Double-Throw)
Coil Voltage: 24VDC
Contact Current Rating: 5A
Mounting Type: Plug-in
Sealed Design: Hermetically Sealed
Certifications: UL Class I, Division 2 (Hazardous Locations)
Applications: Industrial automation, control systems, hazardous environments
Key Features of the 782XDXH21-24D Relay
High-Performance Switching:
Hermetically Sealed Design:
Durable and Reliable:
Wide Industrial Applications:
UL Class I, Div 2 Certification:
Applications of the 782XDXH21-24D Relay
The 782XDXH21-24D relays is widely used across multiple industries due to its versatile design and reliable performance. Some of its key applications include:
1. Industrial Automation
This relay is critical in automation systems, where it helps in switching and controlling multiple electrical loads in industrial settings.
2. Power Distribution Systems
The 782XDXH21-24D ensures efficient power distribution and control in industrial power grids and backup power systems.
3. Transportation & Railway Signaling
Used in railway signaling systems and transportation networks, ensuring safe and efficient switching of circuits.
4. Oil & Gas and Petrochemical Industries
Due to its UL Class I, Div 2 certification, it is safe for use in hazardous environments, such as oil refineries and gas plants.
5. Renewable Energy Systems
Plays a crucial role in solar and wind energy systems, where efficient power switching is required.
Circuit Diagram of the 782XDXH21-24D Relay
To better understand how the 782XDXH21-24D functions, here is a basic circuit diagram showcasing its integration into an automation control system:
+24VDC ------(Coil Terminals)------ 0V
[ 782XDXH21-24D Relay ]
4PDT Contacts:
NO1 NC1 COM1
NO2 NC2 COM2
NO3 NC3 COM3
NO4 NC4 COM4
This relay can be used to switch multiple circuits based on a 24VDC control signal.
Use Case Scenarios for the 782XDXH21-24D Relay
Scenario 1: Automation in a Manufacturing Plant
A manufacturing unit requires precise switching of different electrical loads on an assembly line. By using the 782XDXH21-24D, engineers can automate switching tasks, ensuring efficiency and reduced downtime.
Scenario 2: Power Grid Control
In power plants and substations, the 782XDXH21-24D relay is used to control power distribution, ensuring safe and stable voltage regulation.
Scenario 3: Railway Signal Switching
The relay is widely used in railway networks for automatic signal switching, enhancing train safety and efficiency.
Why Buy the 782XDXH21-24D Relay from Xon Electronic?
Xon Electronic is a trusted global supplier of high-quality electronic components, including Schneider’s 782XDXH21-24D relay. Here’s why you should choose Xon Electronic:
1. Authorized Distributor of Schneider Electric Components
2. Global Shipping – USA, India, Australia, Europe & Beyond
3. Competitive Pricing & Bulk Order Discounts
4. Quality Assurance & Certified Products
Where to Download the Datasheet for the 782XDXH21-24D Relay?
You can download the official datasheet for the 782XDXH21-24D directly from Schneider Electric’s website or via Xon Electronic’s online store.
Conclusion
The 782XDXH21-24D General Purpose Relay by Schneider is an essential component in industrial automation, power distribution, transportation, and hazardous environments. With its hermetically sealed 4PDT design, 24VDC coil, and 5A current rating, it ensures high reliability and efficiency across various applications.
For the best prices and worldwide delivery, purchase the 782XDXH21-24D relay from Xon Electronic today!
Frequently Asked Questions (FAQs) – 782XDXH21-24D General Purpose Relay by Schneider
1. What is the 782XDXH21-24D Relay used for?
The 782XDXH21-24D is a 4PDT, 24VDC, 5A hermetically sealed power relay used in industrial automation, control panels, power distribution, transportation systems, and hazardous environments where reliability and safety are crucial.
2. What are the key features of the 782XDXH21-24D relay?
- 4PDT (Four-Pole Double-Throw) contact configuration
- 24VDC coil voltage with a 5A current rating
- Hermetically sealed design for environmental protection
- Suitable for hazardous locations (UL Class I, Division 2)
- High electrical endurance and reliability
3. What are the applications of the 782XDXH21-24D relay?
This relay is widely used in industrial automation, energy management, transportation, and hazardous areas such as oil & gas plants, manufacturing units, and railway signaling systems.
4. What is the difference between the 782XDXH21-24D and the 782H Series Relays?
Both belong to Schneider’s 782H Series but differ in form factor and mounting type. The 782XDXH21-24D is a plug-in relay, while 782H Series relays are PCB mountable and offer the same reliability in a more compact format.
5. Is the 782XDXH21-24D suitable for harsh environments?
Yes, the hermetically sealed design protects against dust, moisture, and contaminants, making it suitable for challenging conditions, including hazardous locations.
6. Can I use the 782XDXH21-24D relay for PCB applications?
No, the 782XDXH21-24D is a plug-in relay designed for panel mounting. If you need a PCB mountable version, consider Schneider’s 782H Series.
7. Where can I buy the 782XDXH21-24D relay?
You can purchase the 782XDXH21-24D relay from Xon Electronic, a trusted retailer serving customers in the USA, India, Australia, and Europe.
8. How do I download the datasheet for the 782XDXH21-24D relay?
You can download the 782XDXH21-24D Schneider datasheet from Schneider Electric’s official website or through Xon Electronic’s online store.
9. How do I wire the 782XDXH21-24D relay in a circuit?
The coil terminals should be connected to a 24VDC power source, while the four poles (contacts) can be wired to different loads to control multiple circuits simultaneously.
10. What safety certifications does the 782XDXH21-24D relay have?
This relay is UL-certified for hazardous locations (Class I, Division 2, Groups A, B, C, D), ensuring safe operation in explosive atmospheres.