A meter socket base is an accessory component installed in electrical systems, primarily used to secure the energy meter and provide a safe and reliable connection port for the incoming service cables. This component is generally a metallic enclosure with a hinged openable cover, typically installed on the outside of a building near the main service entrance, facilitating meter reading and maintenance by utility personnel or electricians.

In the power supply chain, the meter base plays a critical connecting role – it links the utility lines with the customer‑side indoor distribution network. Once the meter is properly seated in the base, it continuously records the amount of electricity consumed by that customer, providing essential data for billing, usage analysis, and load management.

Quality and Certifications

Model	GTFP-125AN/7J
Reference voltage	600Vac
Reference current	125A
Wiring system	3-phase
Top opening	With hub size 1″ to 2″ for option
Terminal	7 terminals
Jaws	Heavy duty tinned copper jaw
Connector	Aluminum
Insulator	High temperature, polycarbonate
Enclosure	NEMA 3R type construction electrostatically applied epoxy baked gray powder finished
Dimension	360x 210 x 95mm

Outline Dimensions

Outline dimensions

Performance Parameters

Rated Current

This model is rated at 125 amperes, which adequately addresses the electricity demand ranging from ordinary households to small‑to‑medium commercial premises. At this rating, the product maintains stable current conduction, ensuring continuity of power transmission during normal operation while effectively reducing the risk of equipment failure or safety hazards caused by overloads.

Rated Voltage

The product is compatible with 120V/240V single‑phase supply systems and other common standard voltages, with a maximum withstand voltage of 600Vac. This wide voltage compatibility allows it to adapt to different regional grid standards, ensuring accurate energy metering and safe power distribution.

Wiring Specifications

It accepts conductors ranging from #14 to 2/0 AWG, covering most typical wiring scenarios. Users can flexibly select the appropriate cable gauge based on actual load requirements and on‑site wiring conditions, thereby ensuring effective electrical connections and maintaining low circuit resistance to minimize transmission losses.

Frequency

The product is compatible with both 50Hz and 60Hz standard grid frequencies, matching the supply frequency in the vast majority of regions worldwide. It operates stably across this frequency range without abnormal vibration or metering deviations due to frequency differences.

Design Features

01/

7-Terminal Design: This product features a 7‑terminal configuration with seven evenly spaced contact points. This design increases the electrical contact area between the meter and the base, helping to distribute current paths across multiple contacts and reduce localized contact pressure and contact resistance. In practice, this structure effectively minimizes heat generation at the terminals and contributes positively to maintaining long‑term meter reading stability and metering accuracy.

02/

Protection Rating: The enclosure meets NEMA 3R protection standards, effectively preventing rain, dust, and foreign debris from entering the interior. Whether installed in outdoor, unprotected locations or in dusty industrial workshops, this protective design safeguards the normal operation of internal electrical components, reducing the risk of short circuits or corrosion caused by environmental factors.

03/

Housing Material: The enclosure is constructed from 1.2 to 1.5 mm thick galvanized steel with an electrostatically applied epoxy‑polyester powder coating, finished in a durable light gray. This material not only provides good mechanical strength to withstand certain impacts and external forces, but also offers excellent corrosion resistance. Even when used long‑term in outdoor damp, dusty, or wide‑temperature‑swing environments, it effectively prevents rusting and extends the product's service life.

04/

Wiring Convenience: The product features ample internal wiring trough space, allowing for orderly cable routing during installation to avoid messy tangling, thereby reducing wiring difficulty and installation time. Knockouts are provided on the sides, back, and bottom of the enclosure, enabling users to flexibly select opening positions based on actual cable entry directions for multi‑directional wiring. The terminals are of a clamp‑type design – simply insert the conductor into the designated position and tighten the screw – requiring no specialized crimping tools or advanced skills, making the connection process simple and fast.

Application Areas

Residential Electricity Metering

This product is suitable for the installation and connection of single‑phase residential watt‑hour meters, accurately recording the actual electricity consumption of households and providing essential data for billing and usage statistics. Its stable performance and reliable structural design help maintain the normal operation of home power systems, allowing users to stay informed about their own consumption patterns.

Commercial Building Power Distribution

It is applicable to small commercial premises such as convenience stores, offices, and community service stations. The meter socket can be used to connect meters and distribute power to various consumption areas, meeting the conventional power needs of lighting, office equipment, and small appliances, thereby supporting the smooth conduct of business activities.

Industrial Facility Power Management

In certain industrial support areas where supply stability is a consideration, this product can serve as an intermediate metering and distribution node, providing power access points for specific small equipment or work zones. This ensures traceability of electricity usage in production‑support operations and meets basic reliability requirements for power supply.

Customization

We understand that every project may have unique requirements. Our 125A meter sockets offer customization possibilities as follows:

Color Customization

The standard factory finish is a light gray powder polyester paint with good corrosion resistance. We also support custom paint colors upon project request, for example to match the exterior color scheme of a particular building or to achieve visual consistency within the distribution area – we can formulate the corresponding shade accordingly.

Terminal and Wiring Configurations

Terminal types and wiring layouts can be adapted to the actual needs of the electrical system. If cabinet space constraints require specific terminal sizes or arrangements, we can discuss tailored solutions with customers to ensure convenient and safe connections.

Conduit Hub Adaptations

When the on‑site embedded conduit diameter falls outside the conventional 1‑to‑2‑inch range, or when a special type of fitting is needed, we can adjust the inlet specifications of the meter socket to ensure proper interfacing with existing or planned piping, avoiding mismatches during installation.

Enclosure Customization

We can manufacture meter base enclosures in different dimensions according to the specific size parameters provided by the customer, accommodating various installation positions, wall thicknesses, or mounting methods to suit a wide range of site conditions.

Replacement Block Assemblies Compatibility

We offer replacement block assemblies that are compatible with meters in this series, facilitating inspection, maintenance, or equipment replacement during the product's service life and reducing the complexity of later‑stage operations.

Why Choose Our 125A Meter Sockets?

Quality Assurance

From material selection to each stage of manufacturing, this product follows standardized quality management procedures to ensure that every meter base delivered offers reliable performance and safety protection, giving users peace of mind.

Versatility

This meter socket is adaptable to a variety of single‑phase energy metering applications, with design considerations given to usability and convenience across different installation environments – whether in residential, commercial, or industrial support settings, it effectively meets the required needs.

Durability

The enclosure is ruggedly constructed and offers good corrosion resistance, capable of withstanding environmental factors (such as moisture, dust, and temperature fluctuations) encountered in daily use. This reduces maintenance and replacement frequency, extending the overall service life.

Customization Flexibility

We support moderate adjustments to product dimensions or appearance based on specific project requirements, ensuring a good fit with actual installation conditions or visual coordination needs, and helping customers achieve solutions that better align with their project goals.

Our Factory

We are equipped with complete distribution box production equipment and a strong technical and production team. Meanwhile, we have been continuously updating and upgrading our equipment to meet the diverse needs of customers.

FAQ

Q1: When can I get the quotation?

A: We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please tell us so that we will regard your inquiry priority.

Q2: How can I get a sample to check your quality?

A: After price confirmation, you can require for samples to check our quality. If you need the samples, we would like to send sample.

Q3: What kind of files do you accept for printing?

A: PDF, Core Draw, high resolution JPG.

Q4: Can you do the design for us?

A: Yes. We have a professional team having rich experience in design and manufacturing.

Q5: How long can I expect to get the sample?

A: 10 working days for samples.

Q6: What about the lead time for mass production?

A: 45-50 working days for mass production. It depends on your quantity, and we will try our best to meet your needs.

Q7: What is your terms of delivery?

A: EXW, FOB, CIF, etc.