Built for what can’t fail.

We build, source, and support the power systems that data centres, utilities, energy, mining, and heavy industry depend on. One accountable supplier from single-line to energisation.

Medium-voltage switchgear lineup on the shop floor

34.5 kV outdoor switchgear for a Louisiana data centre

Case study · 32 weeks award to first shipment

See the project

We build it, or we assure it

Electrical manufacturing · Assured global sourcing · One accountable supplier

We manufacture equipment where our own shops provide the strongest result. Where global factories offer more capacity or speed, we specify, inspect, test, and manage that equipment instead.

Low-voltage switchgear lineup with MCC sections on the shop floor
Low-voltage switchgear with MCC, assembled and wired in our shop.

Electrical manufacturing

Switchgear, substations, e-houses, panels, and instrumentation designed around your project rather than a catalogue. Vendor-neutral, built to CSA and UL, and tested before it ships.

What we build
Sourced power transformer with radiators and bushings fitted
Sourced power transformer.

Assured global sourcing

Transformers and high-voltage breakers from qualified factories overseas, with our engineering review, factory inspection, logistics, and warranty under one North American contract.

How Assured Source works
Medium-voltage switchgear lineup on the shop floor

Tested before it ships

Lineups are assembled, wired, and put through factory acceptance testing in our shop, so what arrives on site is ready to set and energise.

Medium-voltage switchgear lineup on the Calgary shop floor, before factory acceptance testing.

Unit substation with transformer and low-voltage distribution sections
Unit substation, assembled and tested in the shop before shipment.

What we build

Switchgear · Substations · E-houses and Skids · Panels · Instrumentation

Six product lines, built to your single-line and built in Calgary and Houston.

Send us your single-line
01

Medium-voltage switchgear

5 to 38 kV lineups, metal-clad and metal-enclosed, for utility service, redundant sources, metering, transition, and expansion. Indoor, outdoor, or skid-mounted.

02

Low-voltage switchgear and switchboards

208 to 600 V, to 6,000 A. Mains, breakers, metering, distribution, transition sections, MCC, and bus duct interfaces.

03

Unit substations and power distribution

Integrated power distribution, power distribution centres, and trailer-mounted mobile substations.

04

E-houses, skids, and control buildings

Modular electrical buildings and power skids with switchgear, transformers, MCCs, UPS, HVAC, and fire protection, programmed and tested before shipment.

05

Control, power, and protection panels

PLC, DCS, RTU, SCADA, and network panels. VFD and soft-start motor control. Protection and control with SEL relay integration.

06

Instrumentation and analyser systems

Analyser and sample-conditioning systems, CEMS, custody-transfer metering, LACT, leak and gas detection, and climate-controlled analyser buildings.

Switchgear ratings

Medium-voltage 5 to 36 kV · Low-voltage 480 to 600 V · Metal-clad and metal-enclosed

Typical maximums with commercially available breakers. Higher ratings are possible at a much higher price. Final values are based on approved drawings.

Low-voltage switchgear lineup with breaker doors closed
Low-voltage switchgear lineup in the shop before FAT.

Medium-voltage switchgear

VoltageContinuous currentInterrupting rating
5 to 15 kV4,000 A63 kA
25 to 36 kV3,000 A40 kA

Low-voltage switchgear

VoltageContinuous currentInterrupting rating
480 V6,000 A200 kA
600 V6,000 A100 kA

Typical breaker configuration maximums for switchgear lineups.

Certification

CSA, Intertek ETL to UL 1558 and UL 891, UL 508A

Standards

CSA / UL / ANSI / IEEE / IEC

Enclosures

NEMA 1, 3, 3R, 4, 4X, and 12

Quality

ISO 9001:2015

Lead times

Built in Calgary and Houston · Weeks after receipt of approved drawings

Current lead times for commonly provided items, including 4 to 6 weeks for drawing packages. Rush and expediting available upon request.

ItemQuoteLead time
Junction boxes1 week20 weeks
Transition cells1 week20 weeks
LV switchgear / switchboard1 to 2 weeks26 weeks
MV switchgear1 to 2 weeks42 weeks
MV switchgear with MV MCC2 to 4 weeks42 weeks
Electrical / instrumentation integrated building2 to 4 weeksOn request

Quote time from receipt of a complete enquiry. Lead time after receipt of approved drawings. Transformer and HV breaker lead times are under Assured Source.

Capacity in Canada and the United States

Calgary, Alberta · Houston, Texas · Two shifts

Four plants in Alberta and Texas, building medium- and low-voltage switchgear and e-houses. U.S. plants for U.S. projects. Annual capacity at two shifts.

200kSq ft of manufacturing space200,000 sq ft, plus 131,120 sq ft of e-house mod yard
2,995Switchgear vertical sections a yearMedium-voltage, at two shifts
58E-houses a yearBuilt in Alberta and Texas

Calgary, Alberta

Three plants · Switchgear assembly and full AC and DC switchgear manufacturing

Manufacturing space140,000 sq ft
E-house mod yard87,120 sq ft
Vertical sections2,010 a year
E-houses34 a year

Houston, Texas

One plant · Full AC and DC switchgear, e-house manufacturing and construction · Online 2027

Manufacturing space60,000 sq ft
E-house mod yard44,000 sq ft
Vertical sections985 a year
E-houses24 a year
Calgary, plant 3
1,230 sections
Houston, plant 4
985 sections
Calgary, plant 2
730 sections
Calgary, plant 1
50 sections

Medium-voltage switchgear vertical sections a year by plant, at two shifts.

Field services

Installation · Commissioning · Maintenance · Retrofits · Power system studies

Our experienced in-house teams test the equipment and support it on site, through the start-up to post-energisation. High-voltage work is carried out by Axium Power Services, another Ampere company.

SABRE field service truck parked at an outdoor substation
SABRE field service truck at an outdoor substation.

Electrical and instrumentation

SABRE / Boundary

InstallationIndustrial installation, MCC and PLC retrofits
Start-upStart-up, commissioning, and project management
ShutdownsShutdowns, turnarounds, and retrofits
StudiesPower system studies: arc flash, load, and coordination

High voltage

Axium Power Services, an Ampere company

CableTermination and testing to IEEE 400.3 / 400.4
SubstationsSubstation maintenance and SF6 breaker service
TransformersTransformer installation and maintenance
RetrofitsBreaker and switchgear retrofits

Recent projects

Data centres · Battery energy storage · Oil and gas

Eight projects across data centres, battery storage, and oil and gas. Customers are named only with permission.

Outdoor metal-clad switchgear assembly

34.5 kV outdoor switchgear for a Louisiana data centre

Data centres · Louisiana · August to November 2026

Medium-voltage distribution for a data centre development in Louisiana, with phased deliveries from August through November 2026.

12Outdoor NEMA 3R metal-clad switchgear assemblies
34.5 kV2,000 A / 40 kA RMS
32 weeksAward to first shipment
  • First assembly shipped 32 weeks after award, with all twelve sequenced through a four-month delivery window
  • Hyundai breakers selected for their lead time, with UL certification and QPS inspection on every assembly
Medium-voltage transfer switch assembly

Transformers and 34.5 kV switching for a hyperscale AI campus

AI data centres · Texas · June 2025 to March 2026

GSU transformers for onsite generation, 34.5 kV padmount transformers and splitters, and indoor and outdoor transfer and tie assemblies, delivered building by building.

550+Padmount transformers, 2 to 3 MVA, 34.5 kV primary, loop-feed, FR3-filled, UL-listed
6GSU transformers, 120 MVA
46Transfer and tie assemblies (22 ATS, 24 main-tie-tie-main), 34.5 kV / 1,200 A / 31.5 kA
  • One supplier for GSU transformers, padmount transformers, 35 kV splitters, and 34.5 kV transfer and tie assemblies
  • First building's tie assemblies ready to ship 27 weeks after purchase order, tested and released building by building
80MVA GSU Transformer

Generator step-up transformers for a hyperscale AI campus

AI data centres · Texas · 115 kV

High-voltage transformers connecting large-scale onsite generation to the campus distribution system, delivered on an accelerated construction schedule.

23GSU transformers, 80 to 190 MVA, 115 kV, to ANSI / IEEE
< 32 weeksDelivery of all 23 GSU transformers
< 18 weeksDelivery of two 10 MVA station-class transformers
  • 2,300 MVA of step-up capacity delivered in under 32 weeks, with relays, dissolved gas analysers, bushings, radiators, and monitoring
  • Field services on site for transformer receiving, dress-out, and commissioning
Medium-voltage cable compartments with insulators and terminations

34.5 kV switchgear and RMUs for an AI campus

AI data centres · Texas · December 2026 to March 2027

Medium-voltage distribution for an AI and high-performance computing campus. Switchgear and air-insulated ring main units are built and tested in Calgary, Alberta.

12Switchgear lineups, 9 MV cells each
108MV cells, 34.5 kV / 2,000 A / 40 kA
180Air-insulated RMUs (78 IT load, 102 HVAC and mechanical), 34.5 kV / 1,200 A / 40 kA
  • Medium-voltage engineering at the 34.5 kV class, engineered and certified in-house
  • Production scaled through added capacity and a Hyundai breaker partnership
Battery storage auxiliary power skid

Auxiliary power skids and 6 MVA transformer for battery storage

Battery energy storage · Oregon · Completed June 2025

Integrated auxiliary power for a utility-scale battery storage project in Oregon, supporting peak demand and grid reliability.

6Auxiliary power skids
2.25 MVATransformer and LV distribution on each skid
6 MVASeparate transformer, 35 kV class
  • Switchboards, transformer packages, and LV distribution integrated into one skid, wired and tested as a unit
  • Transformer supplier coordination and shipment planning aligned to site requirements
Unit substation with transformer and LV distribution

Auxiliary power skids for ERCOT battery storage

Battery energy storage · Texas · Completed June 2025

Integrated auxiliary power for a utility-scale battery storage project in Texas, supporting ERCOT grid reliability.

3Auxiliary power skids
2.25 MVATransformer and LV distribution on each skid
34.5 kVVoltage rating
  • Transformers, switchboards, and LV distribution delivered as a single skid-mounted package
  • All three skids factory acceptance tested in May 2025 and released to ship in the first week of June
Electrical service building on temporary piers

Electrical service building for Westover Terminal

Oil and gas · Ontario · 2022 to 2023

A complete electrical service building for Enbridge's Westover Terminal, engineered, integrated, tested, and commissioned as one assembly.

1Electrical service building
6Integrated systems: UPS, PLC control, MV switchgear, LV MCC, utility power, communications
4,160 VMV service, with 480 V, 120/208 V, 125 Vdc, and 24 Vdc
  • One team designed and procured the building and fabricated the PLC, protection and control, and communication panels
  • All equipment integrated, tested, and commissioned as a full building assembly
Control building with external conduit and junction boxes

Substation control building for Glenboro Station

Oil and gas · Manitoba · 2024

A substation control building for Enbridge's Glenboro Station, supplied direct to the customer.

1Substation control building
5Integrated systems: UPS, PLC control, protection and control, utility power, communications
480 VThree-phase service, with 120/208 V, 125 Vdc, and 24 Vdc
  • Repeat customer: two further Glenboro buildings and new Westover Terminal work awarded in November 2025
  • Building engineered and procured, panels fabricated, and the assembly tested and commissioned by one team

Assured Source for transformers and HV breakers

Power, GSU, station-class, and padmount transformers · High-voltage circuit breakers

We don't manufacture transformers or high voltage breakers. SABRE/Boundary sources them from qualified factories overseas, then  inspects, tests, and delivers them under one North American contract: one project manager in your time zone and one warranty holder. You approve drawings and take delivery.

Request a quote

One contract, one warranty holder

A North American project manager is your single point of contact from order through delivery, coordinating the factory, schedule, documentation, and logistics.

Sourced power transformer with radiators, bushings, and conservator fitted
Sourced power transformer, inspected at the factory before ship release.

Power transformers

Lead time from order

52 weeksAssured Source
128 weeksDomestic, typical U.S.

Domestic figure is the typical U.S. market. Assured Source figure is the upper bound from our program.

Data centre padmounts

Lead time from order

18 weeksAssured Source

Upper bound from our program.

Factory network

Turkey · India · China · Indonesia · Taiwan · Vietnam · South Korea

Standards

Engineering review against your specification and CSA, UL, and IEEE before build

Transformer QA/QC at the factory

Our on-staff quality team. We never outsource quality personnel.

01Drawing reviewChecked against your specification and CSA, UL, and IEEE requirements before build.
02Build oversightWelds, bracing, clearances, gaskets, and internal cleanliness verified.
03Factory testingSFRA, turns ratio, resistance, dielectric, and oil results recorded.
04Ship releaseLeak and pressure tests completed. Nitrogen blanket and impact recorders fitted.

Transformer QA/QC in North America

Our shop in Calgary or Houston, then site. SFRA is compared against the factory baseline to catch transit damage.

05Arrival checkImpact recorders and nitrogen pressure checked before unloading.
06Internal inspectionControlled opening, borescope sweep, cleanliness review, and torque checks.
07Repair and reconditionGaskets, seals, and bushings replaced as needed. Oil processed and retested.
08Final testsSFRA against the factory baseline, plus TTR, insulation, and dielectric testing.

Send us your single-line

Tell us the ratings, the scope, and the date you need equipment on site. An application specialist will come back with questions, options, and a budget.

Talk to a specialistRequest a quote

Email

quotes@sabre.ca
sales@boundaryelectric.com

Locations

Calgary, Alberta · Houston, Texas · Grand Forks, British Columbia