ABB SPAU121C-AA Overvoltage/Undervoltage Protection Relay
Key Specifications
- Order Number: SPAU121C-AA
- Brand: ABB
- Input Voltage: 24 VDC ±10%
- Protection Range: 50-300V AC/DC
- Response Time: ≤20ms
- Communication: RS485, Ethernet TCP/IP
- Certifications: CE, UL, IEC 60255
Core Features
✓ Dual-stage voltage protection with adjustable thresholds
✓ Real-time voltage monitoring via LCD interface
✓ MODBUS RTU protocol for SCADA integration
✓ DIN-rail mounting (35mm)
✓ Event logging with 500-record capacity
Industrial Applications
Power Systems
• Substation automation
• Generator protection
• Grid voltage stabilization
Manufacturing
• CNC machine protection
• Motor control centers
• Production line safety
Why Choose Apextron?
✔ 6,000+ sq.ft warehouse with 60,000+ items in stock
✔ 1-year warranty & global express shipping (UPS/DHL/FedEx)
✔ 24/7 technical support team
✔ Specialize in obsolete industrial components
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