Square Box industrial enclosure manufacturing

Energy Storage BOS Enclosures & Auxiliary Control Boxes

Energy storage auxiliary control box near battery storage cabinets

Component-ready enclosure assemblies for BESS, microgrid, PCS, battery cabinet and energy storage equipment builders.

Component-ready support for energy storage balance-of-system builds

Energy storage projects need auxiliary boxes and control enclosures that are ready for wiring, labeling and installation. Square Box builds sheet metal enclosure assemblies to customer drawings, with mounting, hardware, grounding and low-voltage pre-wiring support when confirmed in the BOM.

What we build

  • Auxiliary control boxes
  • Junction and communications enclosures
  • Battery cabinet support panels
  • Sensor and monitoring boxes
  • PCS and inverter auxiliary cabinets
  • Small-batch repeat enclosure assemblies

Applications

  • BMS low-voltage boxes
  • Battery cabinet junction boxes
  • Fire suppression control boxes
  • HVAC / thermal management control boxes
  • DC field wiring junction enclosures
  • PCS / inverter auxiliary cabinets
  • Sensor / communications boxes

Pre-installed options

  • Mounting plates
  • DIN rails
  • Terminal blocks
  • Wire ducts
  • Grounding studs
  • Cable gland plates
  • Labels
  • Customer-approved hardware

Low-voltage pre-wiring support

Low-voltage pre-wiring support is available to customer drawings, terminal schedules and customer-approved BOMs. Square Box can support labels, wire duct routing, grounding points and component mounting when specifications are confirmed before production.

Component sourcing or installation support is based on customer-specified or customer-approved BOM items. Final listing, field acceptance and compliance depend on the complete project design and required testing.

Inspection photos before shipment

Inspection photos are provided for prototype orders before shipment and are available for batch production upon request.

  • Overall enclosure
  • Door and hinge details
  • Hole and cutout locations
  • Mounting plate
  • DIN rail and terminal block layout
  • Wire duct and labels
  • Grounding studs
  • Gasket and sealing structure
  • Surface finish
  • Key dimensions
  • Export packaging

RFQ checklist

  • 3D CAD and 2D PDF drawings
  • Customer-approved BOM or preferred component list
  • Terminal schedule or low-voltage wiring notes
  • Quantity, prototype or batch intent
  • Material, thickness and finish
  • Indoor or outdoor environment
  • Inspection photo requirements
  • Shipping destination and delivery target

Compliance notes

Square Box provides custom enclosure fabrication, component mounting and customer-BOM assembly support. Final electrical listing, field acceptance and project compliance depend on the complete design, selected components, testing and certification requirements.

Built to customer drawings. Customer-approved BOM assembly, component-ready enclosure assemblies and U.S. warehouse support for approved repeat parts are available by project.

Upload drawings and BOM for a 24-hour quote response.

Include CAD files, terminal schedules, component list, quantity, finish and shipping destination for the fastest review.

Upload Drawing for 24h Quote