ABB SPER1B1C4 Protection Relay

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                                                                                                                                            • ABB SPER1B1C4 Protection Relay

                                                                                                                                              Product Overview

                                                                                                                                              The ABB SPER 1B1 C4 is a Trip Circuit Supervision Relay (跳闸回路监视继电器) belonging to ABB’s SPACOM protection relay family. It is designed to continuously monitor the integrity of circuit breaker trip circuits and other critical control circuits in electrical substations and power distribution systems.

                                                                                                                                              The relay detects problems such as broken wiring, poor contacts, auxiliary voltage failures, and circuit breaker trip circuit faults, providing alarm indication to improve system reliability and safety.

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                                                                                                                                              Main Specifications

                                                                                                                                              • Manufacturer: ABB
                                                                                                                                              • Model: SPER1B1C4
                                                                                                                                              • Product Type:
                                                                                                                                                • Trip Circuit Supervision Relay
                                                                                                                                                • Protection Monitoring Relay
                                                                                                                                              • Series:
                                                                                                                                                • ABB SPACOM
                                                                                                                                              • Function:
                                                                                                                                                • Circuit breaker trip circuit monitoring
                                                                                                                                                • Control circuit supervision
                                                                                                                                                • Fault alarm output

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                                                                                                                                              Technical Specifications

                                                                                                                                              Monitoring Function

                                                                                                                                              • Monitored Circuits:
                                                                                                                                                • Circuit breaker trip circuits
                                                                                                                                                • Disconnector control circuits
                                                                                                                                                • Important signaling circuits
                                                                                                                                              • Detection Functions:
                                                                                                                                                • Open circuit detection
                                                                                                                                                • Increased contact resistance detection
                                                                                                                                                • Auxiliary supply failure detection
                                                                                                                                                • Trip circuit interruption monitoring

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                                                                                                                                              Electrical Data

                                                                                                                                              • Auxiliary Supply Voltage:
                                                                                                                                                • 40–265 VDC
                                                                                                                                              • Measuring Circuit:
                                                                                                                                                • Galvanically separated
                                                                                                                                              • Current Consumption:
                                                                                                                                                • Approx. 7–16 mA
                                                                                                                                              • Relay Type:
                                                                                                                                                • Plug-in relay unit
                                                                                                                                              • Connection:
                                                                                                                                                • 11-pin plug-in socket

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                                                                                                                                              Indication & Output

                                                                                                                                              • Front Panel Indicators:
                                                                                                                                                • Green LED: Normal operation
                                                                                                                                                • Red LED: Fault indication
                                                                                                                                              • Output:
                                                                                                                                                • Alarm relay output
                                                                                                                                              • Mounting:
                                                                                                                                                • Rail mounting socket

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                                                                                                                                              Features & Advantages

                                                                                                                                              • Continuous monitoring of breaker trip circuits
                                                                                                                                              • Detects wiring faults before breaker operation is required
                                                                                                                                              • Improves substation protection reliability
                                                                                                                                              • LED status indication for quick troubleshooting
                                                                                                                                              • Compact plug-in design for easy maintenance
                                                                                                                                              • Suitable for retrofit of existing ABB SPACOM systems
                                                                                                                                              • Reliable operation in industrial power environments

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                                                                                                                                              Applications

                                                                                                                                              • Electrical substations
                                                                                                                                              • Medium voltage switchgear
                                                                                                                                              • Power distribution systems
                                                                                                                                              • Circuit breaker control panels
                                                                                                                                              • Industrial power plants
                                                                                                                                              • Generator protection systems
                                                                                                                                              • Utility automation systems

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                                                                                                                                              Important Notes

                                                                                                                                              • SPER1B1C4 is a monitoring relay, not a main protection relay for overcurrent or voltage protection.
                                                                                                                                              • Confirm auxiliary voltage requirements before replacement.
                                                                                                                                              • Requires compatible terminal socket for installation.
                                                                                                                                              • Verify trip circuit wiring before commissioning.
                                                                                                                                              • Suitable for existing ABB SPACOM protection systems.

The structure and details of the product：