Square Box industrial enclosure manufacturing

NEMA 4 vs NEMA 4X vs IP65 Enclosure RFQ Guide

Brushed stainless steel outdoor enclosure with gasketed door and cable glands

Rating language affects material choice, gasket geometry, door hardware, cutouts, coating, cable entry and testing expectations. This guide helps buyers prepare RFQs without overstating certification.

Engineering procurement notes

Rating targets influence material, gasket compression, cutouts, cable entry, finish and testing expectations. The RFQ should describe the application environment and acceptance requirements without assuming unsupported certification claims.

Who this is for

  • Engineers specifying outdoor or washdown enclosures
  • Purchasing teams comparing NEMA-style and IP-rated requirements
  • Panel shops preparing sealed control boxes

Typical use cases

  • Outdoor rain-exposed cabinets
  • Washdown or process-area enclosures
  • Dust and water ingress-aware control boxes
  • Stainless steel or powder-coated sealed assemblies

Files needed for RFQ

  • STEP / STP
  • DXF / DWG
  • PDF drawing
  • quantity
  • material
  • thickness
  • finish
  • NEMA/IP target
  • shipping ZIP
  • BOM / terminal schedule if required

What Square Box can fabricate / assemble

  • Gasketed doors and hardware provisions
  • Rain hood, gland plate and cable entry details
  • Powder coated or stainless enclosure bodies
  • Mounting plates, grounding studs and sealed cutouts

Inspection points

  • cutouts
  • mounting plate
  • gasket path
  • grounding studs
  • terminal layout
  • surface finish
  • packaging photos

Compliance note

Built for NEMA-style and IP-rated applications. Final rating depends on design, materials and testing requirements.

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.

Related resources

Prepare a stronger RFQ package

FAQ

NEMA 4 vs NEMA 4X vs IP65 Enclosure RFQ Guide FAQ

Can Square Box claim a verified rating?

Do not assume a verified rating unless project-specific testing and documentation exist. Use cautious wording until final requirements are confirmed.

What RFQ details affect sealed enclosure performance?

Door design, gasket path, hinge and lock compression, cutouts, cable entry, material, coating, welding and testing requirements all affect the final application.

Is NEMA 4X the same as IP65?

They are different rating systems. RFQ documents should state the project target and testing requirement rather than treating them as interchangeable.

Upload drawings, BOM or a terminal schedule for review.

Send STEP/STP, DXF/DWG, PDF, quantity, material, thickness, finish, NEMA/IP target, shipping ZIP and any BOM or terminal schedule required for assembly.

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