ABB 1MRK004816-AC protection relay

ABB 1MRK004816-AC

The ABB 1MRK004816-AC is a protection relay from the Relion 615 series, specifically designed for feeder protection and control. Below are its key technical parameters:

General Specifications:

Product Series: REL615 (Relion® 615 series)
Type: Feeder Protection and Control IED (Intelligent Electronic Device)
Order Code: 1MRK004816-AC

Electrical Parameters:

Rated Voltage:
- Auxiliary Supply: 48–250 V DC / 110–230 V AC
Current Inputs:
- Rated Current (Iₙ): 1 A or 5 A (configurable)
- Thermal Withstand: 4 × Iₙ continuously, 100 × Iₙ for 1 sec
Frequency Range: 50/60 Hz

Protection Functions:

Overcurrent Protection (OC):
- Definite Time (DT) / Inverse Time (IDMT)
Earth Fault Protection (EF):
- Directional & Non-directional options
Short Circuit Protection:
- Instantaneous & time-delayed
Arc Protection (Optional):
- Supports arc detection via external sensors

Communication & Interfaces:

Protocols:
- IEC 61850 (GOOSE, MMS)
- Modbus RTU/TCP
- DNP3.0 (optional)
Ports:
- Ethernet (RJ45)
- Optical/Electrical RS485

Mechanical & Environmental:

Housing: Standard 19″ rack-mount (4U)
Operating Temperature: -40°C to +70°C
Protection Class: IP20 (indoor use)

Certifications & Standards:

Compliance: IEC 60255, IEEE C37.90, CE, UL

Applications:

Distribution feeders
Industrial power systems
Renewable energy integration

Main Brand:

ABB Allen-Bradley Alstom Bently Emerson Foxboro

GE MOOG Schneider Woodward HIMA Honeywell

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•Shipping Port: Xiamen

•Ship to you via Fedex/DHL/TNT/UPS/EMS

•Package: Original packing with cartons

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Main advantages:

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