The ABB SPER 1C1 is a specialized protective relay designed for power system applications, frequently used in distribution automation and grid monitoring. This specific model features an RS-485 communication interface, allowing it to integrate seamlessly into modern SCADA or DCS environments for remote data acquisition and control. It provides robust protection and monitoring functions, ensuring the stability and safety of electrical networks.
Product Specifications
| Feature | Specification |
| Model | ABB SPER 1C1 |
| Communication | RS-485 |
| Product Code | 002-AA |
| Version | SPER 1C1-AA |
| Weight | Approx. 1.2 kg |
| Dimensions | 120 mm x 100 mm x 180 mm |
| Origin | Finland |

Applications
The SPER 1C1 is engineered for critical power utility and industrial distribution systems:
- Power distribution substations
- Grid monitoring and control systems
- Industrial motor protection
- Integration with SCADA systems via Modbus/RS-485
- Remote fault detection and status reporting
Usage Instructions
- Physical Mounting: Ensure the relay is mounted in a standard panel cutout suitable for protection relays. Verify grounding connections are secure to prevent interference.
- Communication Setup: Connect the RS-485 lines (A and B) to your communication master/gateway. Ensure correct termination resistors (usually 120 ohms) are used if the relay is at the end of the bus.
- Configuration: Utilize the ABB configuration software or the front-panel menu to assign the slave address, baud rate, and parity settings to match your network parameters.
- Wiring Inputs: Connect current/voltage transformers to the sensing inputs. Verify phase sequence and polarity before energizing.
- Operational Check: Use the test mode to simulate a fault and verify that the relay trips the output contacts correctly and sends the appropriate diagnostic signal via the RS-485 port.
Frequently Asked Questions (Q&A)
Q: Can this relay be programmed remotely via RS-485?
A: Yes, the RS-485 port allows for parameter monitoring and, depending on the software implementation, specific setting adjustments.
Q: What is the primary function of the 002-AA suffix?
A: This suffix typically denotes a specific hardware revision or factory pre-configuration for industrial communication standards.
Q: Does the relay require an external power supply?
A: Yes, it requires an auxiliary power supply (check the label for the specific DC or AC voltage range) to operate the internal electronics and communication interface.
Recommended Related Products
- ABB SPACOM series relays
- ABB REU615 Voltage Protection Relay
- ABB REF615 Feeder Protection Relay
- ABB REM615 Motor Protection Relay
- ABB REX640 Modular Protection Relay
- ABB SPAU 100 Series
- ABB SPAD 346 Communication Unit
- ABB SPER 1C2 Relay
- ABB Relion 615 Series communication modules
- ABB Auxiliary Power Supply Module
