Are the GE D20ME Substation Controllers suitable for industrial environments?

Yes, they adopt industrial-grade hardware components and anti-electromagnetic interference design, featuring a wide operating temperature range (-10℃ to 55℃), high vibration resistance, and strong lightning protection performance. They are specifically designed for substation on-site environments, capable of withstanding temperature fluctuations, electromagnetic interference, and harsh conditions such as dust and humidity, ensuring stable operation in long-term industrial applications.

What are the installation guidelines for the GE D20ME Substation Controllers?

Mount the controller in a standard 19-inch industrial cabinet, ensure firm fixation and good heat dissipation (keep a distance of no less than 70mm from the cabinet door), connect the power supply and signal cables correctly, and separate power cables from signal cables to avoid interference. The cable entry should be sealed to prevent dust and rodents from entering, and waterproof bends should be designed for cables passing through humid areas. Professional debugging is required after installation to confirm parameter collection accuracy and communication stability.

How do the GE D20ME Substation Controllers differ from other GE substation devices?

Unlike dedicated protection relays or measurement devices, the D20ME is an integrated substation controller, integrating data acquisition, logic control, communication transmission, and remote monitoring functions. It supports the IEC 61850 Ed2.1 standard, realizing seamless interconnection with intelligent devices at all levels of the substation (station control layer, interval layer, process layer). Compared with ordinary controllers, it has stronger protocol compatibility, more flexible deployment methods, and better adaptability to substation digital transformation needs.

What is the material and environmental rating of the GE D20ME Substation Controllers?

They use high-quality industrial-grade PCB boards, anti-corrosion metal casings, and high-stability electronic components, ensuring long-term reliable operation. The housing protection rating reaches IP40, effectively preventing dust and small foreign objects from entering, and the controllers can operate stably in environments with 5% to 95% relative humidity (no condensation), avoiding component damage caused by moisture or dust accumulation.

WESDAC-D20ME-GE-HARRIS-820-0468-00

Name: WESDAC-D20ME-GE-HARRIS-820-0468-00
Brand: General Electric
SKU: 820-0468-00

General Electric WESDAC D20ME 820-0468-00 Official-Source Product Reference

General Electric WESDAC-D20ME-GE-HARRIS-820-0468-00

Product image is representative; revision or series may vary. Contact us to request a specific version.

Product Describe：

GE WESDAC D20ME 820-0468-00 is a legacy D20/D200 substation-controller processor and data-concentrator reference. The D20ME provides processing, communication and data-concentration functions in a D20 or D200 chassis; the GE Harris 820-0468-00 mapping must be confirmed from the physical label.

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Technical specifications for WESDAC-D20ME-GE-HARRIS-820-0468-00

Manufacturer:

General Electric
Product Category:

DCS Systems
Spare Part Number:

820-0468-00
Estimated shipping dimensions:

2x18.5x26.1cm
Weight:

0.32 kg
Tariff Code:

8537101190
Counliy of origin:

USA
Operating Temperature:

-40°C to +70°C
Storage Temperature:

-40°C to +85°C
Operating Humidity:

5–95% RH
Input Power Supply:

24–48 VDC nominal
Input Voltage Range:

18–60 VDC
Power Consumption:

Approx. 20 W
Input Current:

Approx. 0.8 A @ 24 VDC
Ethernet Ports:

2 × 10/100 Mbps

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Information

Overview Manuals Common Applications Product Precautions

General Electric WESDAC D20ME 820-0468-00 is an evidence-bounded legacy D20/D200 substation-controller processor reference. GE Vernova documents D20ME as the processor used in D20/D200 substation-controller hardware. The requested GE-Harris identifier 820-0468-00 is retained for nameplate and order-record verification because the cited brochure does not map it to one exact D20ME configuration.

Verified base model: D20ME
Requested identifier: GE Harris 820-0468-00 - mapping HOLD
Standard D20ME memory: 2 MB Flash; 512 kB NVRAM; 1.5 MB SRAM
Chassis context: D20 or D200, including documented VME arrangements

System role: D20ME supplies processor, communication and data-concentration functions within the documented D20 or D200 chassis architecture. Only facts stated by the cited manufacturer sources are published; sibling, predecessor and successor data are not transferred. Architecture boundary: The standard D20ME VME entry is listed with 2 MB Flash, 512 kB NVRAM and 1.5 MB SRAM; D20ME II is a separate variant and must not be substituted without verification. Exact revision, firmware, host, connector and field-wiring details must be checked against the physical unit and approved project documentation. For maintenance, replacement or migration work, verify the complete nameplate, companion hardware, wiring, configuration and commissioning procedure before returning equipment to service. Origin, HS code, dimensions and logistics weight remain unpublished without exact manufacturer model-level evidence.

Important Notice: Verify D20ME versus D20ME II, the complete 820-0468-00 label, chassis, firmware and termination before service work.

Apter Power WESDAC D20ME 820-0468-00 Manuals and Guides

Important Notice: The first link is the model-specific product-parameters PDF prepared only from the cited General Electric official evidence; the second link is the Apter Power product information manual. Confirm the physical nameplate, current General Electric documents, and host-system requirements before installation or replacement.

Installed-base maintenance

Supports evidence-led identification and replacement planning for General Electric WESDAC D20ME 820-0468-00.

System documentation

Provides a source-traceable boundary for the documented host, I/O, communication or termination role.

Commissioning review

Guides identity, companion-hardware, wiring and controlled functional checks before return to service.

Migration assessment

Separates exact-model facts from suffix, sibling, predecessor, successor and family-level information.

Read and follow the exact General Electric documentation and host-equipment instructions before work. Verify the complete physical nameplate and system configuration.

Verify D20ME versus D20ME II, the complete 820-0468-00 label, chassis, firmware and termination before service work.

Do not treat 820-0468-00 as a verified order code or merge D20ME with D20ME II. GE Vernova marks D20/200ME controller manufacturing discontinued and points to G500 or D20MX/D200MX alternatives.

De-energize the equipment and follow the site's approved electrical and process-safety procedure before disturbing hardware or wiring.

Back up controller, network, I/O and configuration data before replacement, migration or firmware work.

Verify every companion module, cable, connector, termination and power source from approved drawings.

Do not copy electrical, communication, mechanical or lifecycle values from a related model, suffix or successor.

Perform a documented functional test and confirm diagnostics, alarms and fail-state behavior after work.

Origin, HS code, dimensions and logistics weight remain unpublished without exact manufacturer model-level evidence.

Alternative Names

WESDAC D20ME 820-0468-00 D20ME WESDAC D20ME

Technical notes

Verify D20ME versus D20ME II, the complete 820-0468-00 label, chassis, firmware and termination before service work. Do not treat 820-0468-00 as a verified order code or merge D20ME with D20ME II. GE Vernova marks D20/200ME controller manufacturing discontinued and points to G500 or D20MX/D200MX alternatives. Origin, HS code, dimensions and logistics weight remain unpublished without exact manufacturer model-level evidence. Lifecycle evidence boundary: MANUFACTURING_DISCONTINUED

FAQ View All FAQ

Are the GE D20ME Substation Controllers suitable for industrial environments?

Yes, they adopt industrial-grade hardware components and anti-electromagnetic interference design, featuring a wide operating temperature range (-10℃ to 55℃), high vibration resistance, and strong lightning protection performance. They are specifically designed for substation on-site environments, capable of withstanding temperature fluctuations, electromagnetic interference, and harsh conditions such as dust and humidity, ensuring stable operation in long-term industrial applications.
What are the installation guidelines for the GE D20ME Substation Controllers?

Mount the controller in a standard 19-inch industrial cabinet, ensure firm fixation and good heat dissipation (keep a distance of no less than 70mm from the cabinet door), connect the power supply and signal cables correctly, and separate power cables from signal cables to avoid interference. The cable entry should be sealed to prevent dust and rodents from entering, and waterproof bends should be designed for cables passing through humid areas. Professional debugging is required after installation to confirm parameter collection accuracy and communication stability.

How do the GE D20ME Substation Controllers differ from other GE substation devices?

Unlike dedicated protection relays or measurement devices, the D20ME is an integrated substation controller, integrating data acquisition, logic control, communication transmission, and remote monitoring functions. It supports the IEC 61850 Ed2.1 standard, realizing seamless interconnection with intelligent devices at all levels of the substation (station control layer, interval layer, process layer). Compared with ordinary controllers, it has stronger protocol compatibility, more flexible deployment methods, and better adaptability to substation digital transformation needs.
What is the material and environmental rating of the GE D20ME Substation Controllers?

They use high-quality industrial-grade PCB boards, anti-corrosion metal casings, and high-stability electronic components, ensuring long-term reliable operation. The housing protection rating reaches IP40, effectively preventing dust and small foreign objects from entering, and the controllers can operate stably in environments with 5% to 95% relative humidity (no condensation), avoiding component damage caused by moisture or dust accumulation.

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