Racks & Containment
Enclosures and aisle containment that make cooling work as designed instead of fighting itself.
Containment is the cheapest thermal upgrade most rooms have left. Separating supply air from return stops the mixing that forces cooling units to over-cool the whole room to satisfy the hottest rack — and the enclosures are where that separation is either achieved or lost. Access supplies Great Lakes Data Racks & Cabinets, a Vertiv company, alongside Vertiv’s own enclosures and containment: welded and knock-down cabinets, open frame racks, seismic and custom sizes, built in North America with short lead times.
What we supply
- Server racks 42U-48U
- Small closet racks 24U
- Open frame and wall racks
- Hot and cold aisle containment
- Rack transfer switches
- Cabinet accessories and cable management

Who we represent for racks & containment
Specified correctly, supported for its lifecycle.
Contained aisles let you raise supply temperature without raising intake temperature, which is where the efficiency comes from — and they make density planning honest, because the cooling a rack receives stops depending on where it happens to sit. Because Great Lakes and the cooling around it come from the same line, the enclosure, the containment and the thermal design are quoted and supported as one system rather than three.
How we support it
HVAC & Thermal
Precision cooling and air management that holds tight tolerances where heat is the enemy of uptime.
- Precision & computer-room air conditioning (CRAC/CRAH)
- Air handling & heat rejection
- Data-center thermal management & containment
- Commercial & industrial HVAC
Power Systems
Resilient power from the service entrance to the load — sized, conditioned, and backed up so critical loads remain protected through power disturbances and outages.
- Generators & automatic transfer switches (ATS)
- UPS systems & power conditioning
- PDUs, modular busway & distribution
- Surge protection & DC power plants
Uninterruptible Power Supplies
UPS systems from single-rack to multi-megawatt — sized, installed and maintained so the load never sees the blip.
- Fixed capacity single phase
- Centralized, modular single phase
- Data center and facility 3-phase
- Battery and flywheel energy storage
Generators & Transfer Switches
Standby generation and the transfer equipment that decides whether the facility rides through an outage.
- Diesel standby generators
- Natural gas and bi-fuel generators
- Automatic transfer switches
- Static and static bus transfer switches
Busway & Powerbars
Overhead and modular busway that lets a data hall change shape without an electrician rebuilding the branch circuits.
- Busbar and BusPlug
- Modular busway
- Overhead powerbars
- High-power bar
