Siemens 7VK6111-5AB92-4YP0 Breaker Management Relay Unit

Module Feature

7VK6111-5AB92-4YP0 is Siemens SIPROTEC 7VK61 series breaker management relay dedicated for medium voltage switchgear.

It is used to collect all discrete status signals from circuit breaker, including ON/OFF position, spring charged condition, trip coil continuity, auxiliary contact state and operation counter. It records breaker opening/closing time, trip count and fault event sequence. It supports Profibus-DP communication to upload diagnostic data to substation SCADA system. Built-in trip circuit supervision function continuously checks trip loop integrity. It has text LCD display, local operation keys and configurable alarm logic. It is widely stocked as maintenance spare for power plant and distribution substation MV switchgear cabinet.

Working principle

Multiple auxiliary contact signals from circuit breaker are imported to relay DI channels.

Internal logic monitors contact consistency and trip circuit health, calculates breaker operating time and accumulates operation records. When trip circuit broken or abnormal breaker status detected, the relay triggers local alarm and remote alarm message via fieldbus. All event records are time-stamped for post-fault analysis.

Onboard components

Signal conditioning circuit, main processing CPU, LCD text display, local push button, status LED group, Profibus communication transceiver, DI/DO isolation circuit, event memory, screw terminal block and metal front panel.

LED indicators

Front LEDs indicate power, run status, breaker ON, breaker OFF, spring ready, trip circuit fault and communication alarm.

Hardware self‑diagnosis

Built-in supervision detects trip circuit break, internal power loss, communication failure and channel abnormality. Fault and event records can be read via DIGSI 4 software.

Programming software

DIGSI 4, used for signal mapping, breaker parameter setting, alarm configuration and relay firmware download.

Electrical & Process Parameters

Model:7VK6111-5AB92-4YP0 Brand:Siemens Device type:Medium voltage breaker management relay Function:Circuit breaker status monitoring, trip circuit supervision and event recording for switchgear

Mechanical & Structure

Mounting:Panel flush mounting Protection class:IP54 front, IP20 terminal side Housing:Reinforced plastic industrial relay housing

Environmental

Operating temperature:-20℃ ~ +55℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing

Certification:CE, IEC 61850 optional, IEC 60255

Status:Original Siemens substation spare

Installation

Isolate switchgear control supply before replacement.

Match wiring definition for trip circuit and breaker auxiliary contacts, set Profibus address, test trip supervision and status indication after commissioning.

Interface

Screw terminal block for DI/DO and DC auxiliary supply, Profibus-DP communication port, front LCD and operation button.

Diagnostic

Trip circuit alarm: Trip coil open, wiring break or fuse blown. Status mismatch: Auxiliary contact worn or mechanical adjustment offset. Communication offline: Bus termination wrong, Profibus cable damage or address conflict.

Product Brief

Siemens 7VK6111-5AB92-4YP0 breaker management relay, SIPROTEC 7VK61 switchgear monitoring spare for medium voltage substation cabinet replacement.