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7UM5111-4CB01-0BB0/JJ

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Siemens 7UM5111-4CB01-0BB0/JJ is a SIPROTEC 3 generator protection relay rated for 1 A measurement, 50/60 Hz operation and 60/110/125 V DC auxiliary supply.
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Technical specifications for 7UM5111-4CB01-0BB0/JJ

  • Manufacturer:
    Siemens
  • Part Number:
    7UM5111-4CB01-0BB0/JJ
  • Product Family:
    Siemens SIPROTEC
  • Product Type:
    SIPROTEC 3 Generator Protection Relay
  • Stock:
    1
  • Rated current:
    1 A
  • Rated frequency:
    50/60 Hz
  • AC auxiliary supply:
    100–125 V AC
  • DC auxiliary supply:
    60/110/125 V DC
  • Protection application:
    Generator protection
  • Setting storage:
    Device-specific protection parameter set
  • Commissioning method:
    Secondary-injection and trip-circuit verification
  • Weight:
    19.401 lbs (8.8 kg)
  • Estimated shipping dimensions:
    22.5 x 23.3 x 26.6 cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Applications Protection Monitoring Certifications

Features:

  • Protects generators through the SIPROTEC 3 7UM51 platform.
  • Uses a 1 A current-measuring input configuration.
  • Accepts the documented 60/110/125 V DC auxiliary supply range.
The full /JJ order string identifies a particular 7UM51 hardware and option configuration.

It implements the generator-protection logic engineered for the connected machine and switchgear.

Match current rating, case terminals and saved settings before transferring the trip circuits.

Availability is confirmed against the complete 7UM5111-4CB01-0BB0/JJ identity, required condition, quantity and delivery destination at quotation.
Verified resources for Siemens 7UM5111-4CB01-0BB0/JJ: Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Protect synchronous generators against configured electrical faults.
  • Maintain an installed SIPROTEC 3 protection panel during a legacy-system overhaul.
  • Execute coordinated breaker tripping from measured generator quantities.
  • Protection elements operate from the engineered current and voltage inputs.
  • Trip outputs follow the configured matrix and enabled setting group.
  • Coordination settings must remain consistent with the generator protection study.
  • Measured values and event records support post-fault assessment.
  • Front-panel indications expose pickup, trip and device states.
  • Time alignment is required when correlating the relay record with plant events.
  • Use only the relay variant approved for the switchgear and plant jurisdiction.
  • Commissioning records should demonstrate the required protection test coverage.
  • Panel modifications must preserve applicable insulation and wiring practices.
Description
7UM5111-4CB01-0BB0/JJ is a SIPROTEC 3 relay built for generator protection. Its complete order code fixes the 1 A current-input version together with the 100–125 V AC and 60/110/125 V DC auxiliary-supply range shown on the device label. The relay forms part of a coordinated protection system in which current measurement, machine ratings, trip contacts and auxiliary power must all match the protected generator installation.

In a generating unit, the relay evaluates electrical quantities and executes the protection scheme configured for the machine and its connection to the power system. Its binary assignments, trip matrix and setting groups belong to the plant protection study, not simply to the relay family. Depending on the approved settings, the device contributes selective fault detection and event evidence that help isolate abnormal electrical conditions before they damage the machine or connected network.

A replacement requires the existing setting file, current-transformer ratio, voltage-circuit details, trip wiring and case-terminal arrangement. Secondary-injection testing must confirm every enabled protection element before the breaker trip path is restored. Commissioning records should capture pickup values, time delays, binary matrices and measured operating times so the restored relay can be compared directly with the plant's current protection study.
Alternative Names
7UM5111-4CB01-0BB0/JJ 7UM5111 4CB01 0BB0 JJ 7UM51114CB010BB0JJ Siemens 7UM5111 SIPROTEC 7UM51 Generator Protection 7UM51 1 A Protection Relay Siemens Generator Relay 7UM5111-4CB01-0BB0/JJ
Technical notes
Retain the 1 A measurement version and prove the complete trip matrix of 7UM5111-4CB01-0BB0/JJ by secondary injection before reconnecting generator tripping.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which measuring-current version is built into Siemens 7UM5111-4CB01-0BB0/JJ?
The label identifies the 1 A SIPROTEC 3 generator-protection version.
How does Siemens 7UM5111-4CB01-0BB0/JJ fit a generator trip scheme?
Its configured protection elements and binary matrix operate the documented machine and breaker trip circuits.
What plant study should be reviewed before applying Siemens 7UM5111-4CB01-0BB0/JJ?
Use the approved generator-protection coordination study, CT/VT data and trip logic for the unit.
What supply information is needed when sourcing Siemens 7UM5111-4CB01-0BB0/JJ?
Apter Power confirms the complete suffix, hardware state, case style, available quantity and delivery position in the quotation.
Which tests decide whether a proposed Siemens 7UM5111-4CB01-0BB0/JJ replacement is acceptable?
Complete secondary injection, binary I/O checks and end-to-end trip proving against the original settings.
What files should accompany a Siemens 7UM5111-4CB01-0BB0/JJ inquiry?
Send the setting backup, nameplate photograph, terminal diagram, protection study reference, quantity and destination.