Enclosure & Safety Calculators
Tools for specifying and decoding enclosure protection - ingress ratings, clearances and material safety - each grounded in the IEC, UL or NEMA standard it comes from. Enter your parameters and see the result with the governing clause.
Separate ingress, insulation and material risks
Ingress ratings, insulation spacing and flammability classifications address different hazards. Choose an IP or NEMA rating for enclosure exposure, creepage and clearance for electrical insulation coordination, and UL 94 for polymer flammability screening.
Start here
Decode an IP or NEMA rating
Read what each code covers and why any cross-system comparison must be source- and edition-specific.
Insulation environmentChoose the pollution degree
Classify contamination and condensation at the insulation microenvironment before sizing creepage.
Insulation coordinationCalculate creepage and clearance
Estimate spacing from working voltage, pollution degree, material group and overvoltage conditions.
Polymer selectionCompare UL 94 classifications
Screen material flammability classes by orientation, thickness and application needs.
Which safety tool answers your question?
The tools are complementary, not interchangeable.
| Question | Use this tool | What it does not prove |
|---|---|---|
| What does an IP or NEMA code mean? | IP and NEMA rating decoder | Product suitability in every installation |
| Which NEMA enclosure type fits an environment? | NEMA enclosure type selector | Certification of a specific enclosure |
| Which pollution degree describes the insulation microenvironment? | Pollution Degree 1-4 selector | The final classification required by a product standard |
| What insulation spacing is required? | Creepage and clearance calculator | Compliance with every product-standard exception |
| Which UL 94 class should be considered? | UL 94 rating selector | Fire performance of a complete product |
Enclosure and safety tools
IP & NEMA Rating Decoder
IEC 60529 / NEMA 250Decode a supported IP designation or NEMA enclosure type in plain language, with the standard context kept explicit.
NEMA Enclosure Type Selector
ANSI/NEMA EN 10250-2024Describe the environment and screen for a NEMA enclosure type that covers the selected conditions, or compare two…
Pollution Degree 1-4 Selector
IEC 60664-1Choose the conditions that can reach the insulating surface. The result updates as you go and gives a…
Creepage & Clearance Calculator
IEC 60664-1Estimate creepage and clearance from the stored reference data, with explicit input limits and the calculation shown.
UL 94 Flammability Rating Selector
UL 94 / IEC 60695-11Compare UL 94 material classifications and review what evidence is still needed before applying a class to a…
Standards and practical guides
Governing standards
- IEC 60529 explainedThe IP code for protection against access, solids, dust and water.
- NEMA 250 explainedNorth American enclosure types, including environmental conditions beyond ingress alone.
- IEC 60664-1 explainedThe foundation for low-voltage insulation coordination, creepage and clearance.
- UL 94 explainedLaboratory flammability classifications for plastic materials.