ABB REX010 1MRK000811-AA

Technical parameters

Electrical characteristics: Working voltage 220VDC, current output range 4–20mA, support active/passive mode configuration

Protection level: IP54, military-grade PCB design, temperature range -25℃ to +70℃

Response speed: Fault protection action time ≤0.1ms, ensuring rapid disconnection of fault current

Communication interface: Integrated PROFIBUS PA, compliant with EN 50170 standard, supports adjustable bus address 0–125

Explosion-proof certification: Suitable for Zone 1/Div.1 environment

Functional features

1. Dual-core protection mechanism: ABB REX010 1MRK000811-AA integrates overcurrent and ground fault dual protection, effectively isolates power grid faults through 0.1ms high-speed response, and ensures the safety of key equipment

2. Industrial-grade environmental adaptability: With wide temperature range design and IP54 protective shell, ABB REX010 1MRK000811-AA can maintain stable operation in humid, dusty or corrosive environments

3. Flexible communication integration: Supports PROFIBUS PA protocol and IEC 61158-2 transmission standard, and can be seamlessly connected to DCS/PLC system (such as ABB REF615C controller) to achieve remote monitoring and data interaction

4. Explosion-proof scene exclusive optimization: For hazardous areas such as petrochemical, ABB REX010 1MRK000811-AA provides pre-configured explosion-proof output mode to meet Zone 1/Div.1 safety specifications

Application scenarios

 1. Energy and power: smart substation relay protection system, offshore wind farm collection line monitoring

2.Industrial manufacturing: explosion-proof areas (such as petrochemical plant explosion-proof distribution cabinets), rail transit traction power supply protection

3. Critical infrastructure: high-precision power distribution management of semiconductor factories, power failure protection of port cranes