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ABB SPAU 140 C-AA Numerical Synchro-Check and Voltage-Check Protection Relay
| Parameter | Details |
|---|---|
| Brand | ABB |
| Model | SPAU 140 C-AA |
| Protection Functions | Overcurrent (OC), Earth Fault (EF) |
| Relay Type | Numerical Feeder Protection Relay |
| Trip Characteristics | IDMT / Definite Time |
| Input | CT Operated |
| Mounting Type | Panel Mount |
| Indication | LED Status (Trip / Fault / Healthy) |
| Auxiliary Supply | 110/220V AC/DC (model dependent) |
| Application | Feeder, Transformer, Distribution Line Protection |
| Usage | Switchgear Panels, Substations, Industrial Panels |
| Frequency | 50 / 60 Hz |
| Output Contacts | Trip & Alarm Contacts |
| Condition | Used Excellent Working (As Per Photos) |
| Country In Origin | Made In FINLAND |
| Shipping | Fast & Safe Worldwide Shipping Available. |
| Brand | ABB |
|---|---|
| Category | RELAY |
- Numerical feeder protection relay for MV/HV panels
- Overcurrent (OC) and Earth Fault (EF) protection functions
- IDMT & Definite Time trip characteristics
- CT operated inputs for accurate current sensing
- LED indication for Trip, Fault & Healthy status
- High reliability for switchgear and feeder panels
- Panel mount design for control & relay panels
- Auxiliary supply operated
- Ideal for substations, feeders, and industrial power systems
- Proven ABB protection technology for critical networks
The ABB SPAU 140 C is a highly reliable numerical feeder protection relay designed for medium and high voltage electrical distribution systems. It provides precise Overcurrent (OC) and Earth Fault (EF) protection for feeder lines, ensuring safe operation of switchgear, transformers, and distribution feeders.
Engineered with ABB’s trusted protection algorithms, this relay supports IDMT (Inverse Definite Minimum Time) and Definite Time trip curves, enabling accurate fault discrimination and faster isolation of faults. The relay is CT operated, making it suitable for panel integration in substation and industrial electrical panels.
With clear LED status indicators, robust construction, and proven field performance, the SPAU 140 C-AA is widely used in substations, industrial plants, utilities, and process industries for dependable feeder protection.
