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The ABB RET670 1MRK004816-AC is a comprehensive transformer protection and control IED (Intelligent Electronic Device) from ABB's Relion® 670 series, designed for reliable safeguarding of power transformers and shunt reactors in transmission and distribution networks. The ABB RET670 1MRK004816-AC provides advanced differential protection, overcurrent, voltage-based functions, and automation capabilities for high-availability substation applications.

Model RET670

Order Code 1MRK004816-AC

Product Type Transformer protection IED, Relion® 670 series

Key Functions Differential (87T), overcurrent, restricted earth fault, thermal overload, voltage/frequency protection

Mounting 1/2, 3/4, or 1/1 19" rack/panel, 6U height (266 mm), IP54 front

Power Supply 24-60 V DC or 80-265 V AC/DC variants

Communication IEC 61850, IEC 60870-5-103/104, DNP3, Modbus, IRIG-B

Binary I/O Expandable modules (up to 100+ inputs/outputs)

HMI Graphical display with navigation keys

Operating Temp -25°C to +55°C (IEC Class E2)

Mechanical mounting

Secure the ABB RET670 1MRK004816-AC in the substation rack using supplied angles or plates, ensuring side-by-side IP20 or case-by-case IP54 rating.

Wiring connections

Connect CT/VT circuits, binary I/O, and power to rear female connectors before plugging into the ABB RET670 1MRK004816-AC male parts; use rigid/flexible conductors.

Communication setup

Wire Ethernet ports and serial interfaces on the ABB RET670 1MRK004816-AC to the station network; configure IP addresses via front HMI or PCM600 tool.

Configuration download

Use PCM600 software to load protection settings into the ABB RET670 1MRK004816-AC, verifying hardware compatibility and function blocks.

Testing and energization

Perform secondary injection tests on the ABB RET670 1MRK004816-AC, check external circuitry, then energize with primary power while monitoring disturbances.

Fasten mounting angles carefully to the ABB RET670 1MRK004816-AC sides with kit screws to avoid vibration issues.

Complete all wiring to female connectors before mating with the ABB RET670 1MRK004816-AC to prevent live insertion damage.

Mount antennas (if GPS/IRIG-B used) clear of reflective surfaces for the ABB RET670 1MRK004816-AC to ensure timing accuracy.

Verify CT polarity and ratios before energizing the ABB RET670 1MRK004816-AC to prevent incorrect differential operation.

Protect the ABB RET670 1MRK004816-AC rear I/O from dust/moisture during installation in harsh substation conditions.

Monthly: Check ABB RET670 1MRK004816-AC HMI for self-diagnostic alarms and event logs; clear disturbances if resolved.

Quarterly: Inspect terminals on the ABB RET670 1MRK004816-AC for corrosion; test binary I/O continuity.

Annually: Recalibrate protection functions of the ABB RET670 1MRK004816-AC via secondary injection per site procedures.

Verify communication health to the ABB RET670 1MRK004816-AC via SCADA pings and GOOSE message status.

Replace backup battery in the ABB RET670 1MRK004816-AC every 5-7 years to maintain disturbance recorder data.

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.