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Technical specifications for 7VE5120-4CA10-0A/FF
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Manufacturer:Siemens
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Product Category:General Automation
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Spare Part Number:7VE5120-4CA10-0A/FF
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Estimated shipping dimensions:22.5x23.4x26.7cm
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Weight:8.56 kg
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Tariff Code:8537101190
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Counliy of origin:Germany
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Product family:SIPROTEC 7VE51
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Function:Paralleling device
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IEC 60870-5-103:No
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Remote integration:Active mini star-coupler output
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Order suffix:/FF
Information
Overview
Manuals
Common Applications
Product Precautions
Before a breaker-closing command is enabled, Siemens 7VE5120-4CA10-0A/FF must be reconciled with the station synchronizing circuit, permissives and device-specific communication arrangement.
- SIPROTEC 7VE51 family
- Paralleling-device function
- Legacy communication context
- Exact /FF suffix retained
The controlled engineering path is Two system voltage references → Paralleling checks → Close permissive decision → Breaker closing circuit; preserve the approved system record and verify the intended final response before release.
Important Notice: Confirm the /FF order suffix, synchronizing-voltage sources and breaker close circuit before commissioning.
Siemens 7VE5120-4CA10-0A/FF Manuals & Downloads
Siemens 7VE5120-4CA10-0A/FF Official Technical Reference Excerpt (PDF)Siemens 7VE5120-4CA10-0A/FF Installation & Commissioning Guide (PDF)
Important Notice: The official Siemens catalog documents the applicable SIPROTEC 7VE51 communication and paralleling-device context; the ApterPower guide provides a separate exact-model field sequence for preparation, connection checks, functional proving and acceptance.
Generator paralleling
Controlled synchronizing checks before generator breaker closure.
Bus coupling
Paralleling supervision in a documented bus-coupler scheme.
Legacy station integration
Dedicated communication-path planning for a 7VE51 installation.
Commissioning tests
Voltage-reference, permissive, blocking and close-path verification.
Apply these exact-model controls to Siemens 7VE5120-4CA10-0A/FF before isolation, replacement, reconnection, energization and final release.
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Isolate breaker closing circuits before changing the device or wiring.
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Retain the complete 7VE5120-4CA10-0A/FF identity including /FF.
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Verify both voltage references, phase sequence and transformer ratios.
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Prove all closing interlocks and blocking inputs before functional testing.
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Do not assume IEC 60870-5-103 communication is available on 7VE51.
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Where an active mini star-coupler is used, allocate a dedicated output to the relay.
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Set the communication rate for the installed device rather than a nearby model.
8
Perform a supervised closing-permissive test and archive the results.
Technical notes
Record the synchronizing-voltage sources, breaker close circuit and permitted closing window before replacement. Prove supervised closing and blocking responses under the approved test procedure.
FAQ View All FAQ
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Which synchronizing decision is performed by Siemens 7VE5120-4CA10-0A/FF?It is a 7VE51-family paralleling device used in synchronizing-related schemes.
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Does Siemens 7VE5120-4CA10-0A/FF provide an IEC 60870-5-103 interface?The cited Siemens communication guidance lists 7VE51 among units for which that protocol function is not available in the described configuration.
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How is Siemens 7VE5120-4CA10-0A/FF integrated into the documented mini star-coupler arrangement?Siemens shows use through an active mini star-coupler with one output assigned to each such device.
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Which control selects the documented communication rate for Siemens 7VE5120-4CA10-0A/FF?It must be set according to the installed unit and the actual communication path.
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How should the /FF suffix be handled when engineering Siemens 7VE5120-4CA10-0A/FF?Retain /FF exactly in the relay identity, wiring record, settings record and spare-part documentation.
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Which voltage and breaker-close circuits must be proved before enabling Siemens 7VE5120-4CA10-0A/FF?Verify voltage references, phase sequence, permissives, blocking inputs and the complete closing path.
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What compatibility review is required before replacing Siemens 7VE5120-4CA10-0A/FF with another 7VE51 order code?Confirm the full order code, wiring, settings and station scheme before substitution.
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