Our readers keep the lights on and my morning glass full of iced black tea. As an Amazon Associate, I earn from qualifying purchases.7 Best 100 Amp Meter Socket | Skip the Permit Panic

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The Siemens MC1020B1100S combines a 100 amp meter socket and a 20-circuit main breaker panel in a single surface-mount enclosure. It eliminates the need for a separate disconnect, reducing labor and materials for new overhead service installations. The ring-type cover accepts standard utility meters while the integrated main breaker provides whole-house overcurrent protection.

The 10-space, 20-circuit design supports up to 20 branch circuits using tandem breakers, adequate for most single-family homes and shop builds. The NEMA 3R-rated steel enclosure stands up to rain and snow exposure, though the unit is specifically designed for overhead feed only — underground service requires a different configuration. At 20.5 pounds, the all-steel construction feels substantial and well-braced for pole or wall mounting.

Verified buyers report passing inspection on the first attempt, though several note the importance of confirming utility company approval before installation. The included hubs simplify conduit entry, and the bus bar accepts copper or aluminum conductors for flexibility on the service side.

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The Eaton UHTTRS101BE is a dedicated 100 amp meter socket with a 4-jaw design and horn bypass, built for utilities that require disconnect capability without pulling the meter. The alloy steel enclosure and galvanized finish provide long-term corrosion resistance in outdoor exposures. The 600V AC rating exceeds standard residential requirements, adding a safety margin for voltage drop across long service runs.

Horn bypass operation is straightforward — the utility inserts a clip between the horns to bypass the meter while servicing the disconnect. The ringless cover secures the meter behind a sealed faceplate, preventing unauthorized removal. Interior copper connectors ensure low-resistance current transfer at the critical jaw-to-blade interface, reducing heat buildup at rated load.

Domestic manufacturing and UL listing give this unit strong standing with inspectors. Buyers report it as a direct-fit replacement for older sockets with the same Eaton footprint, though the 6-pound weight makes wire pulling easier during installation. Some users note that the knockout sizing matches standard 1-1/4 and 2-inch conduit hubs for overhead or underground feed.

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Square D’s UGHTRS101B delivers 125 amp capacity in a housing that supports both overhead and underground feed configurations, giving installers flexibility on job sites. The aluminum construction keeps weight manageable while providing adequate corrosion resistance for exterior installations. The integrated horn bypass works with standard utility disconnect tools, and the ringless cover prevents meter tampering without requiring a separate seal.

The 125 amp rating is notable — it exceeds the 100 amp standard by 25%, allowing a buffer for future load increases without swapping the socket. The unit accepts 2/0 AWG copper or aluminum conductors, covering most residential service entrance requirements. Square D’s broad distribution network means replacement parts and compatible hubs are available at most electrical supply houses.

Verified owners highlight the accurate knockout placements that align with standard 1-1/4 and 2-inch hubs. The powder-coated steel finish holds up well in direct sun and rain. Several electricians mention that the unit’s dimensions match existing Square D meter sockets, simplifying retrofit swaps where the old enclosure was from the same brand.

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The Eaton Cutler-Hammer URS101BCH is a straightforward 100 amp ringless meter socket designed as a drop-in replacement for existing Cutler-Hammer or Eaton installations. The white powder-coated finish offers a clean appearance against exterior walls while resisting UV fading and moisture penetration. The ringless design seals the meter behind a screw-on cover, meeting utility requirements in regions that restrict ring-type sockets.

At 7 pounds, this unit is lighter than many combination units, making it easier to handle during overhead work. The enclosure dimensions of 12.3 x 8.8 x 4.5 inches fit standard mounting patterns, reducing the need to drill new holes during retrofits. The solid construction uses a single-piece backpan that keeps the bus assembly rigid during wire termination, preventing jaw misalignment on high-torque connections.

Buyers report this as a reliable replacement for units damaged by weather or age. The powder-coated finish holds up well in coastal environments where salt spray degrades standard galvanized finishes. Note that this is a socket-only unit — a separate load center is required for circuit distribution and overcurrent protection.

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Square D’s Homeline HOM612L100RBCP is a 100 amp outdoor main lug load center with 6 spaces and 12-circuit capacity, designed for sub-panel applications where a separate meter socket already exists. The NEMA 3R rainproof enclosure keeps internal components dry during storms. The plug-on neutral design simplifies wiring by eliminating the need for a separate neutral bar in most configurations.

The tin-plated aluminum bus bar provides low-resistance connections across all breaker positions. The 22 kA short-circuit current rating handles high-fault conditions in commercial and agricultural outbuildings. The welded sheet steel enclosure with baked enamel gray finish resists dents and corrosion, making it suitable for pole-mounted installations at sheds, barns, or well houses.

Verified buyers use this as a sub-panel to feed detached garages and workshops. The compact 8.88 x 3.75 x 12.57-inch footprint fits between studs or on exposed wall surfaces. Several users note the need to purchase a separate ground bar for jurisdictions that require isolated grounding, so verify local code requirements before starting the install.

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The Relaxweex 100A 4-Jaw meter socket offers an entry-level solution for budget-conscious installations without sacrificing the core copper connector material. The internal copper angles and connectors provide low-resistance current paths, reducing heat buildup compared to budget sockets that use aluminum contacts. The 8.7 x 7.5 x 3.15-inch galvanized steel enclosure handles indoor and outdoor installations with the included 1-1/4 inch hub for overhead feed.

The 4-jaw design accepts standard US plug-in meters for single-family residential applications. Compatibility with both overhead and underground feed gives installers flexibility based on service drop configuration. The socket handles 600V AC and accepts 14-2 AWG wire range, covering typical residential service entrance needs. At just 4.06 pounds, this is one of the lighter units, which simplifies handling during pole or wall mounting.

Verified buyers report using this socket for shop sub-metering and separating tenant power bills. Several mention successful inspection passes when installed per code, though as with any meter socket, confirmation with the local utility is recommended before purchase. The compact size makes it usable in tight spaces where larger enclosures won’t fit.

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The EKM Metering EKM-25IDS is a digital single-phase kWh meter designed for sub-metering applications where you need to track energy consumption separately from the utility meter. It supports 100 amp loads and works with 2-wire (120V) or 3-wire (120/240V) configurations. The compact LCD display provides local readout of cumulative kWh, while the pulse output allows remote monitoring via a pulse counter or data logger.

The unit accepts wire diameters from 22 AWG up to 1 AWG (13.5mm), covering most service entrance cable sizes. Installation requires mounting in a weatherproof enclosure — the meter itself is not NEMA-rated. The self-powered design draws from the line voltage, so no external power supply is needed. The 2-year warranty provides coverage for a category where long-term reliability is critical for accurate billing.

Verified buyers use this meter to track power consumption for tenant sub-metering, workshop billing, and internet tower power accountability. Several report accurate readings when verified against utility meters. The small footprint (4.75 x 4 x 3 inches) fits easily inside load center enclosures or dedicated weatherproof boxes. Terminals require careful torque application to ensure secure connections at higher amp loads near the 100 amp maximum.