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    Apter Power supports 750-P5-G5-D5-HI-A20-R document review, configuration matching and quotation.

750-P5-G5-D5-HI-A20-R

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GE Multilin 750-P5-G5-D5-HI-A20-R is a drawout feeder management relay configured for 5 A phase and ground CT inputs, high-range control power and eight 4–20 mA outputs.
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Technical specifications for 750-P5-G5-D5-HI-A20-R

  • Manufacturer:
    General Electric
  • Part Number:
    750-P5-G5-D5-HI-A20-R
  • Product Family:
    GE Multilin
  • Product Type:
    Feeder Management Relay
  • Stock:
    1
  • Phase current input:
    P5: 5 A phase CT inputs
  • Ground current input:
    G5: 5 A zero-sequence input
  • Ground-current modification:
    D5: polarized ground-current configuration for 5 A input
  • Control power:
    HI: 88 to 300 V DC or 70 to 265 V AC
  • Analog outputs:
    A20: eight 4 to 20 mA outputs
  • Breaker LED:
    R: red breaker-closed LED
  • Serial ports:
    Three
  • Protocols:
    Modbus RTU and DNP 3.0; optional Ethernet implementations
  • Mechanical construction:
    Drawout relay case
  • Lifecycle:
    Manufacturing discontinued; 850 listed as alternative
  • Front communication:
    RS-232 serial port
  • Rear communication:
    Two RS-485/RS-422 serial ports
  • Serial baud rate:
    300 to 19,200 bps
  • Display:
    40-character front-panel display
  • Status indication:
    20 front-panel LEDs
  • Time synchronization:
    IRIG-B input
  • Event recording:
    Time-tagged event records
  • Waveform capture:
    Configurable oscillography memory
  • Metering:
    Current, voltage, sequence components, power and energy
  • Replacement platform:
    Multilin 850 via the documented retrofit route
  • Weight:
    11.199 lbs (5.08 kg)
  • Estimated shipping dimensions:
    18.5 x 17.8 x 23 cm
  • Tariff Code:
    85364900
  • Country of origin:
    Canada
  • 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 Monitoring & Control Communication & Connectivity Diagnostics & Protection

Features:

  • Five-ampere phase and ground-current inputs feed feeder protection, metering and fault-location functions.
  • Eight 4–20 mA outputs export selected measured or calculated quantities to plant systems.
  • Three serial ports support Modbus RTU, with DNP 3.0 available on a configured rear path.
The present order identity combines the P5, G5, D5, HI, A20 and R hardware choices in a legacy SR-family drawout case.

Protection elements process CT and voltage quantities, operate breaker logic and record disturbances for event analysis and maintenance.

For either spare replacement or 850 migration, preserve the settings, logic equations, I/O map, terminal blocks and time-synchronization design.

Apter Power can support exact-model configuration review and quotation for GE 750-P5-G5-D5-HI-A20-R.
Verified resources for GE 750-P5-G5-D5-HI-A20-R: 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.
  • Distribution feeders can use directional and nondirectional overcurrent elements for primary protection and breaker tripping.
  • Industrial switchgear can implement bus interlocking, source transfer and load-shedding schemes with relay logic and I/O.
  • Protection teams can analyze stored events, fault location and waveform captures after a trip without a separate recorder.
  • Serial communication and analog outputs transfer relay data to plant control and monitoring systems.
  • Feeder protection, breaker control, metering and event information are combined in one drawout relay assembly.
  • Five-ampere phase and ground CT inputs supply the quantities used by overcurrent and ground-fault protection elements.
  • Three serial communication ports support local engineering and integration with supervisory or plant-control equipment.
  • Modbus RTU and DNP 3.0 are supported, while Ethernet capability depends on the installed communication option.
  • The complete suffix set, CT ratios, setting file and breaker logic must be preserved or re-engineered during migration.
  • The P5 option provides 5 A phase-current transformer inputs for feeder measurement and phase protection functions.
  • The G5 selection uses a 5 A zero-sequence ground-current input for residual or core-balance measurement circuits.
  • The D5 option defines the polarized ground-current configuration that works with the selected 5 A ground input.
Description
750-P5-G5-D5-HI-A20-R defines more than the base relay: P5 and G5 select 5 A phase and zero-sequence inputs, D5 identifies the polarized ground-current arrangement, HI specifies the broad AC/DC auxiliary supply, A20 adds eight analog outputs and R selects the red breaker-closed indication.

The relay combines feeder overcurrent, ground-fault, voltage, frequency, power and breaker-management functions in a drawout chassis. Metering, time-tagged events, oscillography and serial communication give protection engineers both operating visibility and post-event evidence without separate panel instruments.

GE Vernova states that 750/760 manufacturing is discontinued and points users to the 850 and its retrofit route. Migration still requires a settings conversion and engineering review of CT inputs, trip logic, terminal blocks, communications, analog signals and the exact suffix configuration.
Alternative Names
750-P5-G5-D5-HI-A20-R 750 P5 G5 D5 HI A20 R 750P5G5D5HIA20R GE 750-P5-G5-D5-HI-A20-R GE 750 P5 G5 D5 HI A20 R 750-P5-G5-D5-HI-A20-R Feeder Management Relay GE 750-P5-G5-D5-HI-A20-R Multilin 750/760 750-P5-G5-D5-HI-A20-R Catalog Number
Technical notes
Do not replace 750-P5-G5-D5-HI-A20-R from the base number alone; archive the live setting file and verify every suffix, CT circuit and trip contact before the drawout relay is removed.
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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.
What hardware choices are encoded in 750-P5-G5-D5-HI-A20-R?
They define 5 A phase CTs, 5 A ground input with D5 polarization, high-range control power, eight 4–20 mA outputs and a red closed-breaker LED.
Why must the setting file be captured before removing 750-P5-G5-D5-HI-A20-R?
Protection curves, logic, communications and output assignments are site-specific and cannot be reconstructed safely from the catalog number.
Which communications are standard on 750-P5-G5-D5-HI-A20-R?
The platform has one front RS-232 and two rear RS-485/RS-422 ports, with Modbus RTU and a configurable DNP 3.0 path.
How does 750-P5-G5-D5-HI-A20-R support fault investigation?
It provides time-tagged events, oscillography, metering, breaker information and fault-location records for post-trip analysis.
Is a Multilin 850 a drop-in substitute for 750-P5-G5-D5-HI-A20-R?
GE offers a retrofit route, but the settings conversion report, CT circuits, terminals, I/O and panel arrangement still require engineering validation.
Which protection-file package ties a quote to 750-P5-G5-D5-HI-A20-R?
Provide front and rear labels, firmware, setting file, terminal photos, CT ratios, communications map, trip scheme and required delivery date.

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