Description
B&R 7EX484.50-1 Product Specification
The B&R 7EX484.50-1 is a high-performance explosion-proof digital input module designed for industrial automation systems in hazardous environments, offering reliable signal processing and compliance with international safety standards.
1. Product Description
The B&R 7EX484.50-1 is a compact, modular I/O module engineered for use in Zone 1/21 explosive atmospheres. It provides 8 isolated digital inputs with 24 VDC signaling, enabling precise monitoring of switches, sensors, or contactors in environments with flammable gases, dust, or vapors. The module integrates seamlessly with B&R’s APROL and Automation Studio platforms, supporting real-time data acquisition and control.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Type | Explosion-proof digital input module |
| Input Channels | 8 channels |
| Rated Voltage | 24 VDC ±10% |
| Current Consumption | <100 mA per channel |
| Signal Type | Digital (PNP/NPN) |
| Protection Rating | IP65 |
| Explosion Protection | Ex II 2G Ex db IIC T6 |
| Dimensions | 120 × 50 × 100 mm |
| Weight | 0.3 kg |
3. Advantages and Features
- Enhanced Safety: Compliant with ATEX, IECEx, and NEC standards, ensuring operation in Class I, II, III hazardous locations.
- High Noise Immunity: Optical isolation of 2.5 kV protects against electrical interference.
- Hot-Swap Capability: Allows module replacement without powering down the system, minimizing downtime.
- Diagnostic Functions: LED indicators for channel status and fault detection.
4. Application Areas and Use Cases
- Chemical Plants: Monitors emergency stop buttons and pressure sensors in volatile processing areas.
- Oil and Gas: Controls valve positions and level switches in offshore platforms.
- Pharmaceuticals: Manages agitator status in explosion-proof reactors.
Case Study: A petrochemical refinery deployed the B&R 7EX484.50-1 to monitor 500+ field devices across 60 modules. The system achieved 99.99% uptime over 3 years, reducing maintenance costs by 30%.
5. Competitor Comparison
- Higher Channel Density: 8 inputs per module vs. typical 4–6 inputs in comparable products.
- Wide Temperature Range: Operates from -40°C to +70°C, exceeding most competitors’ -25°C to +60°C limits.
- Integrated Safety Logic: Supports SIL 3-rated safety applications without additional modules.
6. Selection Recommendations
- Environmental Requirements: Choose the 7EX484.50-1 for applications in Zone 1/21 with gas/dust hazards.
- Channel Capacity: Opt for this model when needing 8–64 digital inputs per control cabinet.
- Certification Compliance: Verify regional explosion-proof standards (e.g., ATEX, CSA) match project requirements.
7. Precautions
- Installation: Mount vertically in explosion-proof enclosures with proper sealing.
- Grounding: Ensure proper grounding to prevent static discharge.
- Maintenance: Inspect wiring connections annually and replace modules every 10 years as per B&R guidelines.
声明: Shanxi Xinyeda International Trade Co., Ltd. specializes in B&R automation solutions, including the B&R 7EX484.50-1 explosion-proof I/O module. Visit www.xydcontrol.com for product details or contact us for customized technical support.
