B&R 7EX484.50-1

  • 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.
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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.
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