What Are Splitters?

Splitters are enclosed distribution assemblies used to divide one incoming electrical feed into two or more outgoing conductors. In practice, they are often used as a compact way to distribute power to separate loads, tenant spaces, equipment groups, or downstream disconnects. Depending on the design, a splitter may contain mechanical lugs, insulated power distribution blocks, or bus-based terminations inside a metal enclosure. The category is less about one exact product style and more about a job function: taking a feeder and splitting it safely, neatly, and with enough wire space to terminate conductors properly.

Where Are Splitters Used?

Splitters are commonly used in service entrance and feeder distribution work, commercial renovations, multi-load equipment feeds, agricultural buildings, mechanical rooms, and industrial branch distribution points. They are useful where several loads need to be supplied from one source but a larger distribution assembly would be excessive in cost or footprint. Typical examples include feeding multiple disconnects from one service or feeder, splitting supply to HVAC equipment groups, and creating a compact distribution point near process equipment. Final suitability depends on fault current, conductor type, enclosure environment, and code compliance for the specific installation.

How To Choose Splitters

Start with the electrical side first: incoming conductor size, number of outgoing conductors, conductor material, temperature rating, and required ampacity. Then move to the physical side: enclosure dimensions, lug accessibility, wire-bending space, knockout or entry layout, and mounting location. Also confirm whether the installation needs a general-purpose indoor enclosure or something more suitable for damp, dusty, outdoor, or corrosive conditions. If the splitter is part of a service or major feeder arrangement, verify that the assembly rating and installation method align with the design documents and local inspection requirements. In retrofit work, matching the existing brand footprint or enclosure style can reduce field modifications and save labour.

Trade Rules Of Thumb

A practical rule of thumb is to size the enclosure for installation space, not just conductor count on paper. If the conductors are large, finely stranded, or entering from awkward directions, move up in enclosure size rather than forcing tight bends. Another common trade practice is to leave room for future maintenance by avoiding layouts where one termination blocks access to another. For feeder splitting, electricians often prefer a layout that keeps incoming and outgoing conductors visually separated to reduce identification errors. These are practical guidelines only, not code rules. Final conductor spacing, bending space, and termination suitability must be checked against the equipment listing, manufacturer information, and applicable code requirements.

Sizing Guidelines

Begin with the ampacity and conductor range required for the incoming feed and each outgoing leg. Confirm that the lugs or distribution components accept the conductor material and size being installed, including any differences between copper and aluminium terminations. Then review enclosure volume and wire-bending space. As a practical buying guideline, larger conductors, multiple parallel runs, and side-entry layouts usually justify a larger enclosure than the minimum that appears to fit on a submittal sheet. If the splitter will serve as part of service distribution, fault current and assembly rating should also be reviewed. Sizing and overcurrent protection must be based on the actual design and the Canadian Electrical Code, not on generic assumptions.

Common Installation Practices

Common field practice is to mount splitters where conductor routing is direct and serviceable, with enough clearance to land and torque conductors properly. Installers typically plan conduit entry points before mounting so that large feeders do not cross over outgoing taps inside the enclosure. Conductors should be identified clearly, terminations torqued to manufacturer requirements, and bonding handled correctly for the application. In outdoor or damp locations, enclosure type, hub selection, and sealing details matter as much as the internal splitter layout. Where aluminium conductors are used, proper termination preparation and connector suitability are especially important. Always follow manufacturer instructions and local code requirements for conductor preparation, torque, bonding, and enclosure use.

Common Mistakes

One common mistake is choosing a splitter based only on amp rating while overlooking lug range and conductor entry direction. Another is underestimating wire-bending space, especially with large feeders or multiple outgoing conductors. Buyers also run into trouble when they assume any enclosure can be used outdoors or in washdown areas without checking the actual enclosure rating. In retrofit work, a frequent issue is ordering a replacement that does not match the existing mounting footprint or conduit layout, which adds field labour. Another avoidable problem is failing to confirm whether the splitter arrangement fits the intended service, feeder, or tap application under the project design and inspection requirements.

Brand Comparisons

Code Electric is commonly considered for practical enclosure and splitter applications where buyers want a straightforward, job-ready solution for standard commercial or industrial work. In the broader market, Hammond, Hoffman, and Weigmann are also widely recognized names for enclosure-based distribution and control products. The right choice often depends less on brand reputation alone and more on enclosure format, availability, environmental suitability, and whether the product matches the installed base on site. If a facility already standardizes on Hammond, Hoffman, or Weigmann, staying with that platform may simplify replacement and consistency. Code Electric can be a sensible alternative for many standard applications where fit, rating, and layout meet the project requirements.

Related Products

Splitters are often purchased alongside electrical enclosures, wire connectors, mechanical lugs, bonding hardware, grounding components, conduit fittings, hubs, and feeder cable management products. Depending on the job, buyers may also need disconnects, panelboards, terminal blocks, power distribution blocks, wire markers, and torque tools for proper installation. For outdoor or industrial environments, gasketing, sealing fittings, and corrosion-resistant hardware may also be part of the package. Looking at the full installation bill of material before ordering usually prevents delays caused by missing accessories or enclosure entry hardware.

Frequently Asked Questions

Are splitters the same as panelboards?

No. A splitter is generally a simpler enclosed distribution point used to divide feeders or taps, while a panelboard is a more complete distribution assembly with overcurrent devices and branch circuit organization. The right choice depends on the application and design intent.

Can I use a splitter for service entrance work?

It may be possible in some applications, but service equipment arrangements are code-sensitive. You should confirm the assembly rating, bonding method, overcurrent protection scheme, and installation details with the project design, manufacturer documentation, and local authority having jurisdiction.

What matters most when selecting splitter size?

The key factors are conductor size, number of outgoing terminations, lug compatibility, enclosure dimensions, and wire-bending space. In the field, physical working room is often just as important as the electrical rating.

Are splitters suitable for outdoor installations?

They can be, but only if the enclosure and components are suitable for the environment. Check the enclosure type, corrosion resistance, entry fittings, and sealing details rather than assuming any splitter enclosure can be used outdoors.

Is Code Electric a good choice for splitter enclosures?

For many standard applications, yes. Code Electric is a practical option when the enclosure format, rating, and layout fit the job. For retrofit projects, however, matching an existing Hammond, Hoffman, Weigmann, or other installed brand may still be the better path if it reduces modifications and downtime.