REL551 1MRK002480-AE Line Differential Relay
NEW ARRIVAL: ABB REL551 1MRK002480-AE Line Differential Relay
Secure your transmission networks with military-grade protection – now available through Asia’s premier source for obsolete power automation components.
Technical Specifications
- ✅ Protection: 3-phase differential with 2ms operate time
- ✅ Communication: IEC 61850-9-2LE & DNP3 protocols
- ✅ Accuracy: ±0.5% current measurement
- ✅ Operating Range: -25°C to +70°C
- ✅ Inputs: 6 analog + 16 binary
Critical Power System Protection
Essential for modern grid infrastructure:
- ✧ 400kV+ transmission line protection
- ✧ Multi-terminal HVDC systems
- ✧ Wind farm collector line protection
- ✧ Industrial power backbone security
Apextron Technology Advantages
✦ ABB Certified: Direct access to discontinued models
✦ Legacy Specialist: 40+ brands, 12,000+ obsolete parts
✦ Full Support: 1-year warranty + configuration files
⚠️ Last Units Available! ⚠️
Contact our protection relay experts:
Technical documentation: abbdcs36@gmail.com
*All units include original ABB test certificates
**Custom firmware updates available – 24hr emergency support
