CAA Habitation recommendedLaval · Montréal · Industrial
Industrial electrician: plants, 600 V, machines
Plants, 600 V power, machine hookups and planned plant shutdowns: our master electricians do industrial work in Laval and Montréal.
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In short
STM-Électrique and industry
STM-Électrique does industrial electrical work in Laval and Montréal: plants, 600 V power, machine hookups and planned plant shutdowns. STM-Électrique is a firm of master electricians based in Mirabel, holding RBQ licence 5815-0137-01 and a member of the CMEQ. The quote for an industrial project usually arrives within 7 days.
What we do in plants
Adam Chirola, our master electrician, has confirmed the four industrial services we can offer you:
- Plants: the electrical work of the industrial building.
- 600 V power, that is, Hydro-Québec’s 347/600 V three-phase supply.
- Machine hookups.
- Planned plant shutdowns.
For businesses, Adam Chirola is mainly after two jobs: the meter stack and the switchgear, which receives Hydro-Québec’s power and then cuts it off or distributes it throughout the building. To keep equipment running during an outage, there is the commercial and industrial generator.
600 V power: what changes
At low voltage, Hydro-Québec offers two options: single-phase at 120/240 V or three-phase at 347/600 V.
At 347/600 V, the meter stays on a meter base up to 200 A. Above that, it is connected to voltage and current transformers.
What belongs to the customer at the building’s entrance, Hydro-Québec’s Blue Book classifies as service equipment: among other things, the transformer cabinet, the splitter box, the service box, the disconnecting means and the meter base.
On the rate side, the most common business rate, Rate G, applies below 65 kW of minimum billing demand; it suits about 90% of Hydro-Québec’s business customers.
The building can be supplied directly from the line as long as the sum of the service boxes doesn’t exceed 600 A, or beyond that if the maximum demand stays under 500 A.
One point that weighs on the schedule: transformer-rated metering can’t be reconnected by the master electrician. Hydro-Québec takes care of it, and the date is planned with them. The details: commercial and industrial switchgear.
Hooking up a new machine
Machine hookups are one of the four industrial services Adam Chirola has confirmed.
The approach is the same as for any addition: first understand what the current installation can handle, then propose in writing what your project needs, nothing more.
If more capacity is needed, it’s the master electrician who files the service request with Hydro-Québec, then the declaration of work. And if we discover something along the way, we call you before continuing. See also our guide to 320 or 400 amp service.
Planned plant shutdowns: cutting at the right time
Planned plant shutdowns are also among our industrial services. Their length depends on the job: we don’t publish a general figure.
One benchmark only: when the shutdown is to replace switchgear or a meter stack, the power cut usually lasts about 24 hours in a plant or a business.
If the building has transformer-rated metering, the date is set with Hydro-Québec, which alone can reconnect it. And if a surprise comes up during the work, we call you before continuing.
A generator for the plant
For a shop, an office, a warehouse or a plant, the approach is the same: we assess the circuits to back up, do the wiring, declare the work, handle the municipal permit when one is needed, then test the full switchover.
The starting point is the list of equipment to keep running. Next comes the panel that feeds it, then a backup sized for that equipment only. The gas connection is done by a licensed gas company; we coordinate and do all the electrical part. The details: commercial and industrial generator.
Laval and Montréal: the industrial areas
In Laval, the City counts 3 large industrial parks, more than 13,500 business establishments and nearly 165,400 people employed, for a GDP of $23.6 billion in 2024. Industry there goes back a long way: Chomedey developed as both a residential and an industrial area, and from 1962 to 1964, it welcomed on average one new industry a month.
In Montréal, the Pointe-de-l’Île industrial area spans Anjou, Rivière-des-Prairies–Pointe-aux-Trembles and Montréal-Est; it brings together more than 1,500 businesses and 35,000 jobs, and the City describes it as one of the last large industrial areas on the island.
The Saint-Laurent borough is the second-largest employment hub in the metropolitan region after downtown; 70% of its territory is devoted to industrial and commercial activities, and it is home to Technoparc Montréal’s Campus Saint-Laurent.
- Anjou became the largest commercial and industrial hub in the east of the island: electrician in Anjou (in French).
- In Montréal-Nord, a 65-hectare industrial park was laid out along the railway tracks starting in 1963: electrician in Montréal-Nord (in French).
- In Lachine, the canal, opened to shipping in 1825, then its water power, developed in 1847, drew the factories: electrician in Lachine.
On the South Shore too, the Boucherville industrial park brings together 664 businesses and more than 24,000 jobs: commercial electrician on the South Shore.
Industrial electrician: the trade in Québec
According to the National Occupational Classification, industrial electricians install, maintain, test, troubleshoot and repair industrial electrical equipment and the related electrical and electronic controls. They work for electrical contractors or in the maintenance departments of plants, mines, shipyards and other industrial establishments.
In Québec, the certificate of qualification in electricity is mandatory for anyone who installs, maintains, repairs, renovates or modifies an electrical installation outside construction sites, with exceptions named by Québec, including mines; on a construction site, a certificate of competency from the Commission de la construction du Québec is required. The Commission’s trade sheet covers work on electrical installations for lighting, heating and motive power, and an apprenticeship of four periods of 2,000 hours, or 8,000 hours.
At STM-Électrique, the work is led by master electricians, under RBQ licence 5815-0137-01. Looking for a job? Our Careers page (in French) lets you apply online.
How an industrial project goes
- A free written quote, usually within 7 days.
- Requests to Hydro-Québec, filed by the master electrician.
- A surprise along the way? A call before going any further.
- A one-year warranty on our work, parts and labour.
We work in Montréal, Laval, the North Shore and the South Shore; our warehouse is in Laval and our offices are in Mirabel. Your city isn’t on the list? Leave your contact details and the team will confirm whether a visit is possible.
For shops and offices: commercial and industrial electrician, commercial electrician in Laval and commercial electrician in Montréal.
Industrial electrician: your questions
What does an industrial electrician do?
According to the National Occupational Classification, they install, maintain, test, troubleshoot and repair industrial electrical equipment and the related electrical and electronic controls, for electrical contractors or in plant maintenance. At STM-Électrique, our master electricians do four industrial services confirmed by Adam Chirola: plants, 600 V power, machine hookups and planned plant shutdowns.
Do you work with 600 V?
Yes, 600 V power is part of our industrial work. Hydro-Québec offers low voltage at 120/240 V single-phase or 347/600 V three-phase; at 347/600 V, the meter moves to transformers above 200 A, and Hydro-Québec reconnects that metering, on a date planned with them. The details are in our switchgear guide.
Can you hook up a new machine?
Yes, machine hookups are part of our industrial work. We start by understanding what the current installation can handle, then propose in writing what needs to be done, nothing more. If more capacity is needed, the master electrician files the service request with Hydro-Québec, then the declaration of work.
Can you do the work during a plant shutdown?
Yes, planned plant shutdowns are part of our work. Their length depends on the job. The only published benchmark: replacing switchgear or a meter stack usually requires a power cut of about 24 hours in a plant. With transformer-rated metering, the date is set with Hydro-Québec.
Looking for an industrial electrician job?
Our Careers page lets you apply online to join the STM-Électrique team. In Québec, the certificate of qualification in electricity is mandatory to work on an electrical installation outside construction sites, with exceptions; on a construction site, it’s the certificate of competency from the Commission de la construction du Québec.
Get a quote: industrial project
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Industrial
An industrial project in Laval or Montréal?
A free written quote, usually within 7 days.