RS485 Surge Protection -BS RMT 485 5(A)
RS485 Surge Protection BS RMT 485 5(A) (630150) is designed for installation at interface location zones 0B-2 and above. It provides reliable surge current protection for RS485/RS422 industrial bus systems, fieldbus networks, and temperature measurement lines. Engineered to safeguard sensitive communication equipment from lightning-induced surges and transient overvoltages, this device ensures stable and uninterrupted signal transmission. Built in compliance with IEC 61643-21 and GB/T 18802.21 standards, it is ideal for use in industrial control systems, automation, and instrumentation applications.
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Type
BS RMT 485 5(A)
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Art.-No.
630150
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Features
1. Quick response.
2. Low voltage protection level.
3. Dual grounding method for remote signaling terminal and grounding screw.
4. Applied for RS 485 / RS 422 industrial bus control, other field bus and temperature measurement.
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RS485 5V Surge Protection
RM Connecting Terminal
Application environment: Temperature:-40°C~+80°C; Relative humidity: ≤ 95% (25°C)
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Aluminium housing
RS485 Surge Protection Device is a vital component in protecting industrial communication networks from harmful overvoltage, lightning strikes, and electrostatic discharge. Engineered for bidirectional protection and ultra-fast response, this device ensures the reliability and longevity of RS485-based systems such as PLCs, SCADA, BMS, and energy infrastructure.
Features
1. RS485 Interface Protection: Designed to protect twisted-pair communication lines using the RS485 protocol.2. High Surge Capacity: Protects against lightning strikes, electrostatic discharge (ESD), and transient surges.
3. Bidirectional Protection: Offers line-to-line and line-to-ground surge suppression for balanced signal safety.
4. Fast Response Time: Reacts in nanoseconds to clamp harmful overvoltage events.
5. Wide Voltage Range: Typically supports 5V to 12V signal levels depending on device specs.
6. DIN-Rail or Inline Mounting: Available in modular or compact inline housing for flexible installation.
7. Low Capacitance Design: Preserves data signal integrity and communication performance.
8. Standards Compliant: Meets IEC 61000-4-5, IEC 61643-21, and other telecom surge protection standards.
Advantages
1. Reliable Data Transmission: Prevents signal loss and communication errors caused by electrical surges.2. Equipment Safety: Shields industrial control systems, PLCs, and sensors from irreversible surge damage.
3. Reduced Downtime: Minimizes interruptions in critical automation, SCADA, or remote monitoring systems.
4. Long-Term Performance: Extends the operational life of RS485-based devices and networks.
5. Easy Integration: Designed for hassle-free installation in both new and existing systems.
6. Cost Savings: Avoids costly replacement of communication modules and field devices.
Applications
1. Industrial Automation: Protects RS485 communication lines between PLCs, drives, and HMIs.2. Building Management Systems (BMS): Safeguards HVAC, lighting, and access control networks.
3. SCADA & Remote Monitoring: Ensures reliable long-distance data collection and control.
4. Renewable Energy: Protects inverter RS485 ports in solar, wind, and battery systems.
5. Security Systems: Shields RS485 lines used for CCTV PTZ control and alarm sensors.
6. Elevator & Transport Systems: Ensures uninterrupted communication in control cabinets.
7. Utility Infrastructure: Used in substations and smart grids to protect meters and RTUs.
Technical Data
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