Description
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.
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.
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 |

- 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.
- 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%.
- 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.
- 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.
- 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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