Description
ABB 1MRK000284-ABr02 Binary Input Module
Technical Specifications
- Product Model: 1MRK000284-ABr02
- Brand: ABB
- Warranty: One Year
- Input Voltage: 24–250 VDC / 24–230 VAC binary signal detection
- Operating Temperature: -25°C ~ +70°C
- Storage Temperature: -40°C ~ +85°C
- Response Time: Configurable input filtering delay (0 ~ 30s)
- Protection Class: IP20, plug-in board for Relion 670 series IED chassis
- Accuracy Class: Not applicable (Discrete signal acquisition)
- Output Frequency: N/A
- Rated Current Range: Channel operating current ≤2 mA; Opto-isolated input circuits
- Communication Interface: Internal backplane bus for Relion 670 series protection IED
- Supported Protocols: ABB internal IED backplane communication
- Overload Capacity: Channel-level galvanic optical isolation, EMC surge suppression, transient noise filtering
- Dimensions: 240 mm × 126 mm × 32 mm
Product Overview
The 1MRK000284-ABr02 is a plug-in binary input module designed exclusively for ABB Relion 670 series protection and control IEDs. It collects discrete status signals from circuit breakers, disconnectors, auxiliary switches, position indicators and alarm contacts within substation switchgear. Optical isolation separates field wiring from IED internal circuits to prevent damage caused by electrical transients and ground potential differences. Protection engineers and substation maintenance teams deploy this module to expand the digital signal acquisition capacity of feeder, transformer and busbar protection relays. Configurable input debounce filters eliminate false status changes triggered by contact bounce and electromagnetic interference in high-voltage substation environments.
Application Scenarios
- HV/MV Substation Bay Control IEDs: Captures breaker on/off position, spring charged state, isolator and earthing switch auxiliary signals for bay interlock logic and SCADA status reporting.
- Power Transformer Protection Panels: Monitors cooling fan status, tap changer position and oil level alarm contacts, supporting comprehensive transformer supervision functions.
- Wind & Solar Farm Switchgear Protection Cabinets: Collects switching equipment status signals and fault alarm inputs at renewable energy grid interconnection substations.
- Industrial Medium Voltage Distribution Systems: Expands binary input capacity for motor protection relays, collecting safety interlock and equipment fault feedback signals.
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