Engineered for the Way Utilities Actually Build.

MacLean Power Systems engineers the hardware crews install, the switches operators trust, and the transmission assemblies that hold the grid together. ERGO inline disconnects, Inertia switching and protection, and a full engineered transmission portfolio — built to ANSI, IEEE, and CSA, and delivered through Rexel Utility for Canadian projects.

Installation Risk and Operational Complexity Are Slowing Utility Work.

Distribution and transmission crews are working with thinner headcount, tighter schedules, and aging infrastructure all at once. The hardware they install has to be safer to handle, faster to deploy, and ready to participate in a grid that’s getting smarter every year. The cost of getting it wrong shows up as truck rolls, extended outages, and missed modernization milestones.

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Complex inline installations

Multi-person lifts, specialized tooling, and extended exposure on energized assets stretch every job — and crew availability to absorb that pressure is shrinking.

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Operational risk during switching

Manual operations on aging gear expose operators to arc flash and expose feeders to open-air arcing — a growing wildfire ignition concern — alongside restoration delays and reliability metrics that don’t recover quickly when something goes wrong.

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Reactive fault management

Without modern reclosers, sensing, and SCADA-ready devices, faults turn into extended outages and CAIDI/SAIDI penalties instead of momentary events.

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Modernization stuck at the planning stage

Smart-grid roadmaps stall when field hardware can’t integrate with automation, communications, and operational visibility platforms.

One Engineering Partner Across Installation, Operation, and Modernization.

MacLean Power Systems designs and manufactures three connected portfolios that work together across the utility lifecycle: ERGO simplifies and de-risks how hardware gets installed, Inertia delivers the switching, protection, and SCADA-ready devices that keep the grid stable, and the MPS Transmission portfolio supplies the engineered hardware that scales the system. Each line is built to ANSI, IEEE, and CSA — and engineered for North American utility operating conditions.

Specifying MPS through Rexel Utility means one engineering relationship across distribution and transmission, a single technical resource for crews and planners, and a Canadian distribution partner that holds inventory and coordinates regional delivery. That’s the operational case for standardizing on MPS.

Why Utilities Standardize on MPS.

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1. Installation efficiency, by design

ERGO is engineered around the way crews actually work: it installs below the line with no fire-on tool, uses a built-in range-taking connector and glove-friendly hardware, and — where permitted by utility procedure — supports single-person installation of inline disconnects. The result is shorter job durations, fewer truck rolls, and less time on energized assets.

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2. Safer field operations

From below-the-line ERGO installs that keep linemen off energized conductors to the GOVB’s vacuum load-break switching that removes open-air arcing, MPS hardware is built to take steps out of the highest-risk parts of utility work — including the arcing that drives wildfire risk on distribution feeders. Safer crews, simpler procedures, fewer incidents to manage.

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3. Engineered reliability across the system

Inertia reclosers, switches, and protection devices are built with utility-grade materials, corrosion-resistant housings, and operating life expectations that match how Canadian utilities actually run gear: outdoors, year-round, for decades.

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4. Modern-grid ready from day one

SCADA compatibility, sensing integration, and communications-ready designs mean MPS hardware deploys into today’s analog grid and stays useful as automation rolls out. Modernization stops being a forklift upgrade.

Available Across Canada Through Rexel Utility

Rexel Utility is the Canadian distribution partner for MacLean Power Systems. As a division of Rexel Canada Electrical, Rexel Utility serves investor-owned utilities, public power municipalities, rural electrification associations, and utility contractors coast to coast.

A Connected System. One Engineered Partner.

MPS covers installation hardware, distribution switching and protection, and engineered transmission assemblies from a single manufacturer. Whether the project is a distribution rebuild, a substation cutover, or a transmission expansion, MPS’s portfolios are designed to work together — and to be specified through one Canadian relationship.

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ERGO Inline Disconnects

Installation-efficient inline disconnects engineered for simplified field deployment, reduced tooling, and — where permitted — single-person install. The MPS hero platform for distribution work.

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Inertia Switching & Protection

Distribution reclosers, switches — including the GOVB gang operated vacuum break switch for arc-free load-break switching — and protection devices with SCADA-ready interfaces, fault-management capability, and integration paths into utility automation programs.

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Engineered Transmission Hardware

Utility-grade transmission assemblies, structural hardware, and infrastructure components engineered to ANSI/IEEE for distribution-to-transmission scaling.

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Standards & Engineering

Every product line built and tested to ANSI, IEEE, and CSA, with utility-tested designs and full assembly documentation.

Where Do You Want to Go?

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PATH 1

Explore MPS Products & Technical Detail

Specifications, configurations, standards compliance, and engineering notes for ERGO, Inertia, and the Transmission portfolio. The technical depth that helps you spec with confidence and answer the engineering team’s questions on the first pass.

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PATH 2

See How Utilities Deploy MPS in the Field

Real-world applications across installation, operations, modernization, and transmission. How ERGO compresses install time, how Inertia changes fault response, and how MPS’s transmission portfolio supports infrastructure scaling on Canadian projects.

North American Engineering. Canadian Distribution.

Over 40 years in continuous utility manufacturing. Decades of engineered utility hardware production across distribution and transmission.

ERGO inline disconnects designed for single-person installation where utility procedure permits — engineered around how crews actually work.

Standards compliance: ANSI, IEEE, and CSA across the product portfolio.

Inertia switching and protection devices ship SCADA-ready, with sensing and communications integration paths for utility automation programs.

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Ready to Spec MPS on Your Next Project?

Whether you need ERGO installation guidance, Inertia switching specifications, or transmission hardware configurations for a project, MPS’s application engineering — coordinated through Rexel Utility’s regional account managers — can move fast. One conversation. One engineered partner. One supply chain across distribution and transmission.

Explore Product Solutions

Frequently Asked Questions

What does MacLean Power Systems (MPS) manufacture for Canadian utilities?

MPS engineers and manufactures three connected utility portfolios: ERGO inline disconnects for installation efficiency, Inertia switching and protection devices for distribution operations, and engineered transmission hardware for infrastructure scaling. All product lines are built to ANSI, IEEE, and CSA standards and distributed across Canada through Rexel Utility.

ERGO is MPS’s installation-efficient inline disconnect platform. It installs below the line with no fire-on tool, a built-in range-taking connector, and glove-friendly hardware — supporting single-person installation where utility procedure permits. The result is shorter job durations, less time on energized assets, and a safer install than traditional inline disconnects.

Inertia is MPS’s distribution switching and protection portfolio: reclosers, switches — including the GOVB gang operated vacuum break switch — and protection devices. The GOVB interrupts load in a sealed vacuum chamber to remove open-air arcing and reduce wildfire risk. All ship SCADA-ready with sensing and communications integration.

Yes. MPS’s engineered transmission portfolio supplies utility-grade hardware, structural components, and assemblies for transmission infrastructure. The portfolio is designed to scale from distribution into transmission applications, so utilities can specify across voltage classes from one engineering partner — supplied through Rexel Utility’s Canadian distribution network.

MPS engineers and tests to ANSI, IEEE, and CSA standards across the ERGO, Inertia, and Transmission product lines. Specific standards per family are documented in product specification sheets available through Rexel Utility application engineering — request the relevant spec set when scoping a project.

Rexel Utility is MPS’s Canadian distribution partner. Submit a request through Rexel’s specialist contact form with your application or project scope, and a regional account manager will coordinate the order plus any MPS application engineering support — typically within one business day of the request.