Austin Energy Metering Equipment
Approved Equipment, Specifications & Information
Specifications for electric meter types by manufacturer are provided below.
General Metering Information
- Guidelines for Instrument Rated Metering and Checklist for Electrical Contractors (pdf)
- Voltage Transformer (VT) Enclosure Information (pdf)
- Service and Equipment Information (pdf)
- Small Load vs Large Load Description (pdf)
- Small Load vs Large Load Metered Services NOT Metered at Padmount Transformer (pdf)
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Approved Metering Equipment for Services Metered at the Transformer
120-208 Volt Three Phase WYE Padmount Metered Instrument Rated Service
- Large Load 120-208 Volt Padmount Metered IR Service 225 Amps to 1200 Amps (pdf)
- Large Load 120-208 Volt Padmount Metered IR Service 1201 Amps to 3500 Amps (pdf)
- Large Load 120-208 Volt Padmount Metered IR Service 3501 Amps to 4000 Amps (pdf)
120-240 Volt Three Phase Delta Padmount Metered Instrument Rated Service
- Large Load 120-240 Volt Padmount Metered IR Service 225 Amps to 1200 Amps (pdf)
- Large Load 120-240 Volt Padmount Metered IR Service 1201 Amps to 3000 Amps (pdf)
- Large Load 120-240 Volt Padmount Metered IR Service 3001 Amps to 4000 Amps (pdf)
277-480 Volt Three Phase WYE Padmount Metered Instrument Rated Service
- Large Load 277-480 Volt_Padmount Metered IR Service 226 Amps to 1200 Amps (pdf)
- Large Load 277-480 Volt_Padmount Metered IR Service 1201 Amps to 3000 Amps (pdf)
- Large Load 277-480 Volt_Padmount Metered IR Service 3001 Amps to 4000 Amps (pdf)
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Approved Metering Equipment for Services Not Metered at the Transformer
120-240 Volt Single Phase
- Small Load 120-240 Volt Single Phase 200 Amp Self-Contained Services (pdf)
- Small Load 120-240 Volt Single Phase 320 Amp Self-Contained Services (pdf)
- Large Load 120-240 Volt Single Phase Instrument Rated Services 351 to 600 Amps Amps (pdf)
- Large Load 120-240 Volt Single Phase Instrument Rated Services 601 to 1200 Amps Amps (pdf)
- Large Load 120-240 Volt Single Phase Instrument Rated Services 1201 Amps to 1600 Amps (pdf)
- Large Load 120-240 Volt Single Phase Instrument Rated Services 1601 Amps to 2000 Amps (pdf)
- Large Load 120-240 Volt Single Phase Instrument Rated Services 2001 Amps to 3500 Amps (pdf)
120-208 Volt Single Phase
- Small Load 120-208 Volt Single Phase Self Contained Services
- Large Load 120-208 Volt Single Phase and 480 Volt Three Wire Three Phase IR Service up to 600 Amps
- Large Load 120-208 Volt Single Phase and 480 Volt Three Wire Three Phase IR Service 601 Amps to 1200 Amps
- Large Load 120-208 Volt Single Phase and 480 Volt Three Wire Three Phase IR Service 1201 Amps to 1600 Amps
- Large Load 120-208 Volt Single Phase and 480 Volt Three Wire Three Phase IR Service 1601 Amps to 2000 Amps
- Large Load 120-208 Volt Single Phase and 480 Volt Three Wire Three Phase IR Service 2001 Amps to 3500 Amps
120-208 Volt Three Phase WYE
- Small Load 120-208 Volt Three Phase WYE Self Contained Services
- Large Load 120-208 Volt Single Phase Instrument Rated Services 351 Amps to 600 Amps
- Large Load 120-208 Volt Three Phase WYE Instrument Rated Services 601 Amps to 1200 Amps
- Large Load 120-208 Volt Three Phase WYE Instrument Rated Services 1201 Amps to 1600 Amps
- Large Load 120-208 Volt Three Phase WYE Instrument Rated Services 1601 Amps to 2000 Amps
- Large Load 120-208 Volt Three Phase WYE Instrument Rated Services 2001 Amps to 3500 Amps
120-240 Volt Three Phase Delta
- Small Load 120-240 Volt Three Phase Delta Self Contained Services
- Large Load 120-240 Volt Three Phase Delta Instrument Rated Services 351 Amps to 600 Amps
- Large Load 120-240 Volt Three Phase Delta Instrument Rated Services 601 Amps to 1200 Amps
- Large Load 120-240 Volt Three Phase Delta Instrument Rated Services 1201 Amps to 1600 Amps
- Large Load 120-240 Volt Three Phase Delta Instrument Rated Services 1601 Amps to 2000 Amps
- Large Load 120-240 Volt Three Phase Delta Instrument Rated Services 2001 Amps to 3500 Amps
277-480 Volt Three Phase WYE
- Small Load 277-480 Volt Three Phase WYE Self Contained Services
- Large Load 277-480 Volt Three Phase WYE Instrument Rated Services up to 600 Amps
- Large Load 277-480 Volt Three Phase WYE Instrument Rated Services 601 Amps to 1200 Amps
- Large Load 277-480 Volt Three Phase WYE Instrument Rated Services 1201 Amps to 1600 Amps
- Large Load 277-480 Volt Three Phase WYE Instrument Rated Services 1601 Amps to 2000 Amps
- Large Load 277-480 Volt Three Phase WYE Instrument Rated Services 2001 Amps to 3500 Amps
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Meter Socket Specifications for Manufacturers
- E-1001 200 Amp Single Phase Meter Socket (pdf)
- E-1002 Seven Terminal 200 Amp Three Phase Meter Socket (pdf)
- E-1045 Single Phase Meter Socket Class 320 (pdf)
- E-1565 Six Terminal IR Single Phase Socket Prewire Ts (pdf)
- E-1566 Three Terminal IR Three Phase Socket Prewire Ts (pdf)
- E-1567 Thirteen Terminal IR Three Phase Socket Prewire Ts and VT pack (pdf)
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Primary Metering Specifications and Approved Metering Equipment
Primary Metering Specifications
- Primary Metering - 150 Amps (pdf)
- Primary Metering - 600 Amps (pdf)
- Primary Metering - 900 Amps (pdf)
Primary Metering Equipment
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Modular Metering: Meter pak equipment and modular metering equipment
Modular Metering Equipment in accordance with AE Specification E-1589 (pdf)
Customer must provide the following:
- Modular Metering Request Form (pdf)
- Highlighted Equipment Cut Sheets
- Approved ESPA(s)
- Electrical Riser Diagram/ One-Line
- Site Plan
Customer shall obtain written approval from Austin Energy Advanced Metering Systems & Engineering prior to procurement.
Special Notice About Delays for Metering Equipment
New orders for ALL metering equipment have extremely long lead times according to the manufacturers and vendors. This is due to labor and material shortages that have affected production efforts nationwide. It is highly recommended to place your orders for ALL the necessary metering equipment as soon as possible.
Contact Us
Metering Equipment and Information, and General Metering Questions
Metering Design and Review
CT Inspections
- Email: AE DMO Dispatch
Modular Metering and Requests, Solar Variances, Metering Specifications, and General Advanced Metering Questions
ESPA Reviews for Small Load Services Under 350 Amps Single Phase or 225 Amps Three Phase
Date last reviewed or modified: 12/11/2024