$5,980.00 Original price was: $5,980.00.$3,999.00Current price is: $3,999.00.
The ABB RET670 (Order No.: 1MRK004816-AB) is a high-performance numerical protection relay of the Relion® series, designed for protecting transformers, generators, and power lines with precise measurement, multiple protection functions, and seamless communication with substation automation systems .
| Parameter | Details |
|---|---|
| Model | RET670 (Order No.: 1MRK004816-AB) |
| Manufacturer | ABB |
| Product Type | Numerical Protection Relay (Relion® Series) |
| Core Functions | Transformer/generator/line protection; overcurrent/overvoltage/undervoltage/earth fault protection; differential protection; fault recording; remote monitoring & control; auto-reclosing/load shedding |
| Input Current Range | 1 A AC or 5 A AC (secondary current from CTs) |
| Input Voltage Range | 57.7 V AC (line-neutral) or 100 V AC (line-line, secondary voltage from VTs) |
| Measurement Accuracy | ±0.5% Full Scale (for current/voltage) |
| Fault Recording | Up to 100 event records; sampling rate ≥ 1000 samples/s |
| Communication Interfaces | 2×Ethernet (supports IEC 61850); 1×RS-485 (Modbus RTU/DNP3.0); 1×LON bus (via SLM module) |
| Digital I/O | 16 digital inputs; 16 digital outputs (relay type, 5 A/250 V AC max) |
| Power Supply | 24 V DC ±20%; 110/230 V AC ±20% (50/60 Hz) |
| Power Consumption | 15 W max (DC supply); 18 W max (AC supply) |
| Operating Temperature Range | -20°C to +55°C |
| Storage Temperature Range | -40°C to +85°C |
| Relative Humidity | 5% – 95% RH (non-condensing) |
| Protection Rating | IP20 |
| Dimensions (W × H × D) | 110 mm × 70 mm × 35 mm |
| Weight | 0.3 kg |
| Mounting Type | Panel-mounted or 19-inch rack-mounted (2U height) |
| Certifications | CE, UL, CSA, IEC 61850 (Ed. 2.1), IEC 60255 |
| Key Features | Color LCD display; built-in self-diagnostics; LED status indicators; programmable protection logic; 6 constrained CT inputs |
| System Compatibility | Substation automation systems; ABB 800xA DCS; SCADA systems; other Relion® relays |
| Applications | Power plant transformers; synchronous generators; transmission/distribution lines; industrial power networks; substations |
AC 800M is a family of rail-mounted modules, consisting of CPUs, communication modules, power supply modules and various accessories. There are several CPU modules to choose from, ranging from single units with medium processing power and memory to fully redundant units with high processing power.

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