IP37
Last updated: Aug 9, 2026Specified under IEC 60529, IP37 denotes protection against solid objects larger than 2.5 mm and protection against the effects of temporary immersion in water. Ingress of water in quantities causing harmful effects shall not be possible.. It is an IEC 60529 ingress protection code combining first-digit (solid) level 3 with second-digit (liquid) level 7.
Solid 3
> 2.5 mm — Tool / Wire
Liquid 7
Temporary Immersion (up to 1 m)
What IP37 means
The IP code IP37 is part of the IEC 60529 standard for ingress protection. The first characteristic numeral, 3, indicates the level of protection against solid objects and access to hazardous parts. The second numeral, 7, indicates the level of protection against the ingress of water. Together, these digits describe exactly what an enclosure rated IP37 can withstand.
For solid protection, the digit 3 means the enclosure is > 2.5 mm — tool / wire. Protected against access to hazardous parts with a tool. Protected against solid foreign objects of 2.5 mm diameter and greater. The test method is access probe (2.5 mm rigid test wire) shall not penetrate with adequate clearance.
For liquid protection, the digit 7 means the enclosure resists temporary immersion (up to 1 m). Protection against the effects of temporary immersion in water under standardized conditions. Ingress of water in quantities causing harmful effects shall not be possible. The test procedure is immersion in water with the lowest point of the enclosure up to 1 m below the surface for 30 minutes.
IP37 vs IP38: the higher rating adds continuous immersion. When specifying IP37 for a project, confirm the rating certificate from the manufacturer and consider that seals degrade over time with temperature cycling, UV exposure, and chemical contact.
Full specification table
| Parameter | Solid digit (3) | Liquid digit (7) |
|---|---|---|
| Protection level | > 2.5 mm — Tool / Wire | Temporary Immersion (up to 1 m) |
| Description | Protected against access to hazardous parts with a tool. Protected against solid foreign objects of 2.5 mm diameter and greater. | Protection against the effects of temporary immersion in water under standardized conditions. Ingress of water in quantities causing harmful effects shall not be possible. |
| Test method | Access probe (2.5 mm rigid test wire) shall not penetrate with adequate clearance. | Immersion in water with the lowest point of the enclosure up to 1 m below the surface for 30 minutes. |
| Object size / water pressure | 2.5 mm rod | Hydrostatic ~10 kPa at 1 m |
| Test distance | Per standard | 1 meter depth |
| Test duration | Per standard | 30 minutes |
Typical applications
Submersible equipment
Rugged portable devices
Outdoor field instruments
NEMA equivalent
Recommended products for IP37
IP37 submersible enclosure
All IP37 comparisons
69 pairsIP37 offers higher overall protection than IP00. Choose IP37 for harsher environments; IP0
IP37 offers higher overall protection than IP01. Choose IP37 for harsher environments; IP0
IP37 offers higher overall protection than IP02. Choose IP37 for harsher environments; IP0
IP37 offers higher overall protection than IP03. Choose IP37 for harsher environments; IP0
IP37 offers higher overall protection than IP04. Choose IP37 for harsher environments; IP0
IP37 offers higher overall protection than IP05. Choose IP37 for harsher environments; IP0
IP37 offers higher overall protection than IP06. Choose IP37 for harsher environments; IP0
IP37 offers higher overall protection than IP07. Choose IP37 for harsher environments; IP0
IP37 offers higher overall protection than IP08. Choose IP37 for harsher environments; IP0
IP37 offers higher overall protection than IP09K. Choose IP37 for harsher environments; IP
IP37 offers higher overall protection than IP10. Choose IP37 for harsher environments; IP1
IP37 offers higher overall protection than IP11. Choose IP37 for harsher environments; IP1
IP37 offers higher overall protection than IP12. Choose IP37 for harsher environments; IP1
IP37 offers higher overall protection than IP13. Choose IP37 for harsher environments; IP1
IP37 offers higher overall protection than IP14. Choose IP37 for harsher environments; IP1
IP37 offers higher overall protection than IP15. Choose IP37 for harsher environments; IP1
IP37 offers higher overall protection than IP16. Choose IP37 for harsher environments; IP1
IP37 offers higher overall protection than IP17. Choose IP37 for harsher environments; IP1
IP37 offers higher overall protection than IP18. Choose IP37 for harsher environments; IP1
IP19K and IP37 offer comparable overall protection; choose based on the specific protectio
IP37 offers higher overall protection than IP20. Choose IP37 for harsher environments; IP2
IP37 offers higher overall protection than IP21. Choose IP37 for harsher environments; IP2
IP37 offers higher overall protection than IP22. Choose IP37 for harsher environments; IP2
IP37 offers higher overall protection than IP23. Choose IP37 for harsher environments; IP2
IP37 offers higher overall protection than IP24. Choose IP37 for harsher environments; IP2
IP37 offers higher overall protection than IP25. Choose IP37 for harsher environments; IP2
IP37 offers higher overall protection than IP26. Choose IP37 for harsher environments; IP2
IP37 offers higher overall protection than IP27. Choose IP37 for harsher environments; IP2
IP28 and IP37 offer comparable overall protection; choose based on the specific protection
IP29K offers higher overall protection than IP37. Choose IP29K for harsher environments; I
IP37 offers higher overall protection than IP30. Choose IP37 for harsher environments; IP3
IP37 offers higher overall protection than IP31. Choose IP37 for harsher environments; IP3
IP37 offers higher overall protection than IP32. Choose IP37 for harsher environments; IP3
IP37 offers higher overall protection than IP33. Choose IP37 for harsher environments; IP3
IP37 offers higher overall protection than IP34. Choose IP37 for harsher environments; IP3
IP37 offers higher overall protection than IP35. Choose IP37 for harsher environments; IP3
IP37 offers higher overall protection than IP36. Choose IP37 for harsher environments; IP3
IP38 offers higher overall protection than IP37. Choose IP38 for harsher environments; IP3
IP39K offers higher overall protection than IP37. Choose IP39K for harsher environments; I
IP37 offers higher overall protection than IP40. Choose IP37 for harsher environments; IP4
IP37 offers higher overall protection than IP41. Choose IP37 for harsher environments; IP4
IP37 offers higher overall protection than IP42. Choose IP37 for harsher environments; IP4
IP37 offers higher overall protection than IP43. Choose IP37 for harsher environments; IP4
IP37 offers higher overall protection than IP44. Choose IP37 for harsher environments; IP4
IP37 offers higher overall protection than IP45. Choose IP37 for harsher environments; IP4
IP37 and IP46 offer comparable overall protection; choose based on the specific protection
IP47 offers higher overall protection than IP37. Choose IP47 for harsher environments; IP3
IP48 offers higher overall protection than IP37. Choose IP48 for harsher environments; IP3
IP49K offers higher overall protection than IP37. Choose IP49K for harsher environments; I
IP37 offers higher overall protection than IP50. Choose IP37 for harsher environments; IP5
IP37 offers higher overall protection than IP51. Choose IP37 for harsher environments; IP5
IP37 offers higher overall protection than IP52. Choose IP37 for harsher environments; IP5
IP37 offers higher overall protection than IP53. Choose IP37 for harsher environments; IP5
IP37 offers higher overall protection than IP54. Choose IP37 for harsher environments; IP5
IP37 and IP55 offer comparable overall protection; choose based on the specific protection
IP56 offers higher overall protection than IP37. Choose IP56 for harsher environments; IP3
IP57 offers higher overall protection than IP37. Choose IP57 for harsher environments; IP3
IP58 offers higher overall protection than IP37. Choose IP58 for harsher environments; IP3
IP59K offers higher overall protection than IP37. Choose IP59K for harsher environments; I
IP37 offers higher overall protection than IP60. Choose IP37 for harsher environments; IP6
IP37 offers higher overall protection than IP61. Choose IP37 for harsher environments; IP6
IP37 offers higher overall protection than IP62. Choose IP37 for harsher environments; IP6
IP37 offers higher overall protection than IP63. Choose IP37 for harsher environments; IP6
IP37 and IP64 offer comparable overall protection; choose based on the specific protection
IP65 offers higher overall protection than IP37. Choose IP65 for harsher environments; IP3
IP66 offers higher overall protection than IP37. Choose IP66 for harsher environments; IP3
IP67 offers higher overall protection than IP37. Choose IP67 for harsher environments; IP3
IP68 offers higher overall protection than IP37. Choose IP68 for harsher environments; IP3
IP69K offers higher overall protection than IP37. Choose IP69K for harsher environments; I