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.
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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Full 12-month warranty on all components
Full 12-month warranty on all components
