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Description
Hydel MSC400TW 200A Underground Meter Socket with Isolated Neutral Capability, 1/2" Compression Studs & 2 x 2-1/2" Knockouts
Built for Ontario residential and light commercial service installations, the Hydel MSC400TW is a 200 amp, 600 volt, 4-jaw underground meter base with 1/2" compression studs, 2 x 2-1/2" knockouts, and a CSA/NEMA 3R enclosure. This model is especially relevant where electricians, contractors, and inspectors are focused on correct neutral bonding practice and isolated neutral requirements at the service entrance.
⚠️ Isolated Neutral Matters in Ontario
On many Ontario jobs, installers are specifically looking for meter bases that support isolated neutral configurations. That is not just a preference issue — neutral bonding in meter bases is a real inspection and safety topic. When an isolated neutral configuration is used, the bonding conductor and service bonding must still be completed correctly in line with code and utility practice.
- This page is written to help contractors identify the MSC400TW quickly when isolated-neutral-ready meter bases are being requested.
- The Hydel catalogue for the MSC series lists the insulated neutral accessory and the standard underground meter socket specs for this model family.
- Always confirm final field installation, bonding, and approval requirements with the current utility guide, OESC rules, and the inspector having jurisdiction.
🔌 Underground Service Ready
Designed for underground use only, making it suitable for residential service entrance work, service upgrades, and meter base replacement applications in Ontario.
🧰 Compression Stud Design
Includes 1/2" line studs for compression-type wire connectors and supports a No. 6–250 MCM CU/AL load conductor range.
📏 Standard KO Configuration
The MSC400TW uses 2 x 2-1/2" knockouts and a shallower enclosure than the MSC400TW3, making it the right fit where that conduit opening size is required.
Hydel MSC400TW Meter Socket Overview
The Hydel MSC400TW is a contractor-focused 200A underground meter socket for service entrance applications where a 4-jaw, 600V meter base with 1/2" compression studs and standard 2 x 2-1/2" knockout configuration is required. For Ontario electricians, this model is a strong fit for service upgrades, new residential builds, and meter base replacements where conduit size and isolated neutral considerations matter.
Because many electricians search by exact part number, common buying phrases for this unit include: Hydel MSC400TW, 200 amp underground meter socket, meter base with isolated neutral, Ontario meter base 200A, and Hydel 2 x 2-1/2" KO meter socket.
- Ideal for underground service entrance installations
- Useful where 2-1/2" knockout openings are required rather than 3"
- Supports Ontario-focused searches around isolated neutral meter base
- Suitable for contractors, builders, panel upgrade specialists, and electrical wholesalers
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Hydel |
| Model | MSC400TW |
| Type | Underground (U/G) meter socket |
| Amperage Rating | 200A |
| Voltage Rating | 600V |
| Jaw Configuration | 4 Jaw |
| Line Connection | 1/2" compression studs |
| Conductor Range | No. 6 – 250 MCM CU/AL |
| Knockouts | 2 x 2-1/2" KO |
| Enclosure | CSA / NEMA 3R |
| Dimensions | 18" H x 12" W x 4-3/4" D |
| Weight | 17 lbs |
| Application | For underground use only |
Typical Ontario Applications
- Residential service upgrades
- New home electrical service installations
- Meter base replacements
- Light commercial underground metering setups
Why Contractors Choose This Model
- Exact-part-number demand in the field
- Standard 2 x 2-1/2" KO configuration
- Hydel brand familiarity in Ontario
- Supports isolated-neutral-focused buying requirements
Hydel MSC400TW vs Hydel MSC400TW3
The main difference between these two Hydel meter bases is the knockout configuration and resulting enclosure depth. That distinction matters when the conduit layout on the job specifically calls for either 2-1/2" or 3" openings.
| Feature | MSC400TW | MSC400TW3 |
|---|---|---|
| Amperage | 200A | 200A |
| Voltage | 600V | 600V |
| Type | Underground | Underground |
| Jaw Configuration | 4 Jaw | 4 Jaw |
| Line Connection | 1/2" compression studs | 1/2" compression studs |
| Knockouts | 2 x 2-1/2" KO | 2 x 3" KO |
| Depth | 4-3/4" | 5-1/8" |
| Neutral Focus | Used where neutral bonding/isolation practice is relevant | Used where neutral bonding/isolation practice is relevant |
If your project requires the deeper enclosure and 2 x 3" knockouts, view the Hydel MSC400TW3 meter socket .
Downloads & Resources
Use the documents below to review product details, drawing references, and Hydel’s broader service entrance product range.
What the shop drawing helps confirm
- Overall box size and depth
- Bottom knockout arrangement
- Compression stud layout
- Isolated neutral assembly reference
What the Hydel catalogue helps confirm
- MSC400TW part-number listing
- 2 x 2-1/2" KO distinction vs MSC400TW3
- 200A / 600V / 4-jaw configuration
- No. 6–250 MCM CU/AL conductor range
Frequently Asked Questions
Is the Hydel MSC400TW an underground meter socket?
What is the difference between MSC400TW and MSC400TW3?
Does this meter base use compression studs?
Why is isolated neutral important on Ontario jobs?
What conductor range does the MSC400TW support?
If your project requires the deeper enclosure depth and 3" knockouts, view the Hydel MSC400TW meter socket .
Contractor Pricing for Meter Bases & Service Entrance Products
Working on a service upgrade, custom home, or multi-unit electrical project in Ontario? Contact MarsLED for bulk pricing, contractor support, and product sourcing on Hydel meter bases and related electrical distribution products.
Explore More Electrical Service Products
- Browse all electric meter bases
- Shop electrical products at MarsLED
- Review MarsLED shipping information
MarsLED supplies Hydel meter bases and service entrance products to electricians and contractors across Toronto, Mississauga, Brampton, Vaughan, Hamilton, Milton, Kitchener-Waterloo, Cambridge, London, Ottawa, Barrie, Kingston and across Ontario.
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