A single-phase metering circuit needs a fixed point where the utility line and the customer's wiring can meet safely - that is exactly the role of this 125 amp meter socket. It anchors the meter in place, keeps the connection secure under continuous load, and shields the metering equipment from the elements throughout its service life.Inside, a 4-jaw contact arrangement gives the meter four independent points of engagement, which spreads the current path evenly and keeps contact resistance low and predictable. The square-shaped housing keeps the footprint compact, so the unit installs cleanly on exterior walls in both housing developments and small commercial buildings.
The enclosure itself is stamped from metal and finished with a weather-resistant coating, which lets the socket stand up to sun, rain, and general outdoor exposure - an important factor for equipment that typically stays mounted outdoors for years without replacement.
Quality and Certifications
|
Model |
GTFP-125AN/4J |
|
Reference voltage |
600Vac |
|
Reference current |
125A |
|
Wiring system |
1-phase, 2-wire/3-wire |
|
Top opening |
1″ to 2″ for optional |
|
Terminal |
4 terminals |
|
Form |
1S, 2S |
|
Jaws |
Heavy duty tinned copper jaw |
|
Connector |
Steel |
|
Insulator |
High temperature, polycarbonate |
|
Enclosure |
NEMA 3R type construction electrostatically applied epoxy baked gray powder finished |
|
Dimension |
324.2x 219 x 116.2mm |
Outline Dimensions

Performance Parameters
Rated Current
Built around a 125A rating, the unit is sized for the current draw typical of a single dwelling or small service point. Its internal contact geometry is engineered to carry that load continuously without overheating or drifting out of tolerance.
Rated Voltage
The socket is rated to withstand up to 600Vac and is intended for use on 120/240V single-phase systems, the configuration most common in North American residential and light commercial service.
Wiring Specifications
Terminals accept wire sizes anywhere from #14 up to 2/0 AWG, giving electricians room to match the conductor to the actual load rather than being locked into one gauge.
Frequency
The design works equally well on 50Hz or 60Hz supply, so the same part number can serve utilities that run either standard without modification.
Design Features
4-Terminal Design: Rather than relying on two or three contact points, the base uses four jaws to hold the meter, distributing current across a wider contact area and lowering the odds of a hot spot forming at any single terminal.
Protection Rating: Built to NEMA 3R criteria, the housing keeps falling rain, blown dust, and other outdoor debris away from the live components inside, so the unit is fit for wall-mount installation without extra shielding.
Housing Material: The galvanized steel shell resists rust and surface degradation, which matters most in coastal areas, humid climates, or any environment where moisture sits against the enclosure for extended periods.
Wiring Convenience:Multiple knockout points and generous internal clearance mean an electrician can route conduit and dress cables without fighting for space, cutting the time needed on site.
Application Areas
Residential Electricity Metering
This is the everyday choice for single-family houses and apartment units where the utility needs a dependable point to read household consumption. Its compact square profile fits the typical exterior wall mounting most residential projects call for.
Commercial Building Power Distribution
Small offices, shops, and similar low-demand commercial spaces can rely on this socket for meter mounting and service entry, giving facility owners an accurate, code-compliant metering point without oversizing the equipment.
Industrial Facility Auxiliary Power Connection
Where a facility needs a separate, independently monitored power feed - for example a detached structure or an added circuit - this socket base provides a practical way to add that metering point without a major rework of the main service.
Customization
We understand that every project may have unique requirements. Our 125A meter sockets offer customization possibilities as follows:
Color Customization
Beyond the standard protective coating, alternate surface colors and finishes can be applied to match branding requirements or blend with a particular site's aesthetic.
Terminal and Wiring Configurations
Jaw positioning and terminal arrangement can be modified to suit meters or wiring schemes that differ from the standard configuration.
Conduit Hub Adaptations
Hub size and entry-point location can be repositioned so the unit lines up correctly with existing conduit runs or unusual mounting conditions.
Enclosure Customization
Where mounting space is tight or oversized, the housing dimensions themselves can be adjusted while keeping the structural integrity of the design intact.
Replacement Block Assemblies Compatibility
Replacement blocks and internal parts can be supplied separately, which simplifies repairs and future upgrades rather than requiring a full unit swap.
Why Choose Our 125A Meter Sockets?
Quality Assurance
The four-jaw layout keeps the meter firmly seated and electrically stable, so readings stay accurate even after years of continuous service.
Versatility
Sized for the most common single-phase scenarios, it drops into residential and light commercial projects without requiring a custom spec sheet.
Durability
A corrosion-resistant shell means the unit keeps performing after repeated exposure to rain, humidity, and temperature swings.
Customization Flexibility
With room to modify terminals, conduit entries, and enclosure size, the same base product can be tailored to fit projects that don't follow a standard layout.
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.
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