Description
B&R 7EX484.50-1 Product Specification
The B&R 7EX484.50-1 is an explosion-proof digital input module designed for industrial automation systems operating in hazardous environments.
1. Product Description
The B&R 7EX484.50-1 is a compact, robust module engineered to provide reliable signal input in explosive atmospheres. With 8 channels of digital inputs and 24 VDC nominal voltage, it supports safe operation in Zone 1/21 and Zone 2/22 areas. The module features IP66/IP67 protection and ATEX/IECEx certification, ensuring compliance with global explosion-proof standards. Its screw terminal connections enable easy integration with field devices, while galvanic isolation safeguards against voltage spikes.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Type | Explosion-proof digital input module |
| Channels | 8 |
| Rated Voltage | 24 VDC |
| Current Consumption | 15 mA per channel |
| Protection Class | IP66/IP67 |
| Certification | ATEX/IECEx |
| Interface | Screw terminals |
| Dimensions | 120 × 50 × 100 mm |
| Weight | 0.3 kg |
3. Advantages and Features
- Explosion-Proof Design: Certified for use in gas/dust-explosive environments, reducing safety risks.
- High Reliability: Galvanic isolation and surge protection ensure stable signal transmission.
- Flexible Installation: IP67 rating allows outdoor or harsh environment deployment.
- Cost-Effective: Compact size minimizes space requirements without compromising performance.
4. Application Areas and Use Cases
- Chemical Industry: Monitors sensors in reactors and storage tanks.
- Oil & Gas: Controls valves and pumps in refineries and offshore platforms.
- Pharmaceuticals: Manages critical processes in hazardous production areas.
Case Study: A chemical plant integrated the B&R 7EX484.50-1 to monitor pressure sensors in a flammable liquid storage system. The module’s explosion-proof design reduced downtime by 30% compared to non-certified alternatives, ensuring continuous and safe operation.

5. Competitor Comparison
- Wider Certification: Supports both ATEX and IECEx standards, unlike some regional-only certified modules.
- Higher Channel Density: 8 channels in a smaller form factor than many 4-channel competitors.
- Enhanced Protection: IP67 rating exceeds typical IP65 protection in comparable products.
6. Selection Recommendations
- Environment: Verify ATEX/IECEx compliance with your regional explosion risk classification.
- Signal Requirements: Ensure 24 VDC compatibility with your field devices.
- Space Constraints: Leverage the compact design for installations with limited space.
7. Precautions
- Installation: Follow explosion-proof sealing guidelines during wiring.
- Voltage Stability: Use a regulated power supply to prevent input signal distortion.
- Maintenance: Regularly inspect seals and terminals for wear or corrosion.
声明: Shanxi Xinyeda International Trade Co., Ltd. specializes in B&R automation solutions, including the B&R 7EX484.50-1 explosion-proof module. Visit www.xydcontrol.com for product details or contact us for customized technical support.


