Ontario-Approved & Hydro One Acceptable Meter Bases, Meter Sockets & Meter-Mounting Devices
Shop meter bases, meter sockets, and meter-mounting devices for Ontario residential, commercial, and contractor electrical service installations. This collection focuses on equipment commonly used for Ontario utility service connections, including 200A underground meter sockets, breaker meter bases, multi-position meter centres, and isolated-neutral-ready configurations.
⚠️ Important Ontario Approval Note
In Ontario, meter bases and meter-mounting devices must be approved to the applicable Canadian standards, and utilities such as Hydro One publish lists of models that are considered acceptable examples. Models not listed may still be acceptable if they meet Hydro One’s current meter-mounting-device requirements. Where applicable, Ontario utilities also give preference to isolated neutral configurations.
- Use approved equipment that meets the applicable CSA standards.
- Confirm the current utility acceptance requirements before installation.
- For Ontario jobs, neutral bonding and isolated-neutral configuration must be handled correctly.
200A Single-Position Meter Bases
Ontario electricians commonly look for 200A meter sockets for single-family residential service upgrades, custom homes, and underground or overhead service entrances.
Breaker, Transfer & Load-Centre Options
This collection also supports projects requiring breaker-integrated meter bases, sub-feed lug options, transfer-switch-ready models, and meter/load-centre combinations.
Multi-Position & 400A+ Solutions
For multi-unit, duplex, and larger commercial applications, Ontario projects may require multi-position meter banks, meter centres, and transformer-rated metering equipment.
Choosing the Right Ontario Meter Base
| Meter Base Type | Typical Ontario Use | What to Check |
|---|---|---|
| 200A Single-Position Meter Socket | Residential service upgrades, new homes, underground or overhead service | Utility acceptance, jaw configuration, knockout size, neutral bonding, CSA approval |
| Breaker Meter Base | Applications requiring integrated disconnect or breaker arrangement | Breaker type, conductor range, enclosure rating, utility acceptance |
| Transfer / Generator-Ready Meter Base | Backup power and transfer-switch installations | CSA approval, transfer-switch rating, utility requirements |
| Load-Centre Combination Base | Compact service-equipment layouts | Panel capacity, circuit count, enclosure, service approval |
| Multi-Position Meter Bank / Meter Centre | Duplexes, townhomes, apartments, commercial metering | Position count, main rating, neutral treatment, utility and project requirements |
Common Ontario-Approved / Hydro One Acceptable Meter Base Families
Common manufacturer families associated with Hydro One’s currently published acceptable-example list include Hydel, Eaton, Microlectric, Durham, Leviton, and Schneider Electric / Square D, across categories such as 200A self-contained bases, breaker meter bases, multi-position meter banks, specialty bases, and transformer-rated metering equipment.
Common 200A / single-position examples
- Hydel EK400ROBC
- Hydel EK200XL
- Hydel JA402R-BC
- Hydel SLC402RW
- Eaton LMB3-IN / RCJ2Q Series / RCPM Series
- Microlectric BS2-INTCVBC / CO2-G Series
- Durham DR Series / SB Series
- Leviton LS800-BRC Series
Multi-position / larger-service examples
- Hydel HC40R Series
- Eaton K4 Series
- Microlectric BS4 Series
- Schneider Electric / Square D meter centres
- Hydel CT4-TSHO
- Hydel CTS405PW-TSHO w/ MSPMK7
- Eaton TCC5-H1 with ECLIN4
- Microlectric JS4B-TLHO / CT105-SWLHO
Popular Ontario Hydel Meter Base Options
Hydel MSC400TW
200A underground meter socket with isolated neutral focus, 1/2" compression studs, and 2 x 2-1/2" knockouts. Ideal where the standard knockout size is required.
Hydel MSC400TW3
200A underground meter socket with isolated neutral focus, 1/2" compression studs, and 2 x 3" knockouts. Best where the larger conduit opening and deeper enclosure are needed.
Hydel E400RO
200A underground meter socket with isolated neutral focus, 1/2" compression studs, and 2 x 2-1/2" knockouts. Ideal where the standard knockout size is required.
Hydel EK400RO
200A combination overhead/underground meter socket for service entrance applications where a 4-jaw, 600V, single-position meter base with an oversize enclosure is required.
Need Help Choosing an Ontario-Approved Meter Base?
MarsLED supports electricians, contractors, builders, and project managers across Ontario with meter bases, service entrance equipment, and product-selection support for utility-facing installations.
Supplying Electricians Across Ontario
MarsLED supplies meter bases and electrical service equipment to electricians and contractors across Toronto, Mississauga, Brampton, Vaughan, Markham, Oakville, Burlington, Hamilton, Milton, Kitchener-Waterloo, Cambridge, Guelph, London, Ottawa, Barrie, Kingston, Oshawa and across Ontario.
