ABB REF545KC133AAAA Protective Relay Module
The ABB REF545KC133AAAA is an industrial-grade protective relay designed for critical power system protection. It delivers precise fault detection and rapid response to electrical anomalies, safeguarding industrial equipment against overloads, short-circuits, and phase imbalances. This module ensures operational continuity in demanding environments like power distribution networks and manufacturing facilities.
Technical Specifications
| Brand | ABB |
| Model | REF545KC133AAAA |
| Rated Voltage | 400 V |
| Rated Current | 25 A |
| Frequency Range | 50/60 Hz |
| Protection Functions | Overcurrent, Overload, Short-Circuit |
| Communication | Modbus RTU (RS485) |
| Operating Temperature | -25°C to +70°C |
| Certifications | IEC 61000, UL 489 |
Applications & Compatibility
Ideal for:
• Power distribution substations
• Manufacturing plant motor control centers
• Critical infrastructure protection systems
• Renewable energy grid interfaces
Compatible with ABB’s Relion® protection series and integrates seamlessly with control systems like AC 800M. Commonly paired with current transformers (CTs) and voltage sensors for comprehensive protection schemes.
Why Choose Us?
Hong Kong Saul Electric Co., Ltd. – Asia’s premier supplier of industrial automation components with 15+ years of expertise. We specialize in obsolete, niche-market, and hard-to-source parts from 40+ top brands including ABB, GE, and Triconex.
Our Commitment:
• 1-year comprehensive warranty on all products
• Expert pre-sales technical consultation
• Priority global shipping
• Custom sourcing for discontinued models
Actual pricing and availability: Contact us via WhatsApp or email at 3931184055@qq.com. Can’t find your model? We’ll source it for you.
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