IP Protection Rating

An IP Protection Rating (Ingress Protection Rating) is a standardised classification that describes how effectively an electrical enclosure prevents the entry of solid objects, dust and water.

For swimming pool equipment, including swim jets, underwater motors, pool lights and control units, the IP rating helps identify the environmental conditions an enclosure is designed to withstand.

The rating follows IEC 60529, the international standard for enclosure protection. In Australia, the corresponding standard is AS 60529.

How Does an IP Rating Work?

An IP rating normally consists of the letters "IP" followed by two digits. Each digit represents a different type of protection.

For example, IP68 can be broken down as follows:

• IP: Ingress Protection classification.

• 6: Dust-tight enclosure.

• 8: Protection against immersion under specified conditions.

The first digit ranges from 0 to 6 and indicates protection against solid objects, including dust. The second digit describes resistance to water exposure, from dripping water to immersion or high-pressure water jets.

An "X" means that a protection rating has not been specified for that particular category. For example, IPX8 indicates a specified immersion rating without a stated solid-particle protection rating.

Common IP Ratings Explained

The following ratings are particularly relevant to electrical equipment used outdoors or around swimming pools.

These classifications describe enclosure protection under defined testing conditions rather than confirming suitability for a particular swimming pool installation.

IP67 vs IP68: What Is the Difference?

The distinction between IP67 and IP68 is particularly important for equipment that may be submerged.

IP67 indicates protection against temporary immersion under standardised test conditions, commonly involving immersion at a depth of up to 1 metre for 30 minutes.

IP68 covers immersion under conditions more demanding than IP67. The permitted depth, duration and operating conditions must be established for the particular enclosure rather than assumed from the rating alone.

Neither rating automatically confirms resistance to powerful water jets. Immersion protection and jet resistance involve different tests, so equipment intended to withstand both may need separate verification.

Why IP Ratings Matter for Swim Jets

A swim jet produces a continuous swimming current by drawing water into a pumping system and directing it back into the pool. Depending on its design, electrical components may be submerged, exposed to splashing or positioned outside the pool.

These locations create different protection requirements.

The enclosure rating should be assessed for each component rather than assuming the entire swim jet system shares a single IP classification.

For example, an underwater motor may be designed for submerged operation while its associated power supply or control box must remain outside the water. The motor's immersion rating does not extend to those external components.

IP Ratings and Australian Pool Electrical Safety

In Australia, the IP classification system is addressed by AS 60529:2025, while electrical installations, including those associated with swimming pools, are governed by the applicable provisions of AS/NZS 3000 (Wiring Rules).

An IP rating describes enclosure protection, but it does not independently establish electrical safety or compliance with pool installation requirements. Other considerations include electrical supply arrangements, equipment location, protective devices and the installation instructions supplied by the manufacturer.

Pool electrical work requiring an electrician must be performed by an appropriately licensed person.

What an IP Rating Does Not Tell You

An IP rating is a measure of enclosure protection under defined testing conditions. It does not describe every environmental factor affecting equipment reliability.

Three limitations are particularly relevant to Australian swimming pools:

• Chemical and salt exposure: IP testing does not establish long-term resistance to chlorinated water, saltwater or pool chemicals. Material selection, seals and corrosion resistance must be assessed separately.

• UV and heat resistance: A high IP rating does not indicate how well plastic housings, cables or seals withstand prolonged exposure to Australia's strong sunlight and summer temperatures.

• Service life: Seals, cable entries and enclosure joints can deteriorate through ageing, physical damage or improper maintenance. An original IP rating does not guarantee that protection remains unchanged throughout the equipment's life.

How to Check the IP Rating of Pool Equipment

The manufacturer's technical specifications should identify which components carry an IP rating and the conditions under which that rating applies.

For equipment intended for underwater use, check the permitted immersion depth, whether the device is approved to operate while submerged, and any restrictions on installation orientation or operating conditions.

For outdoor control units, inspect the instructions for permitted mounting locations, weather exposure and cable-entry requirements. Battery-powered equipment should also have clearly defined charging and storage conditions.

These details provide a more reliable basis for assessing pool equipment than the IP number alone.

Technical References

1. Standards Australia – AS 60529:2025, Degrees of protection provided by enclosures (IP Code).
   https://store.standards.org.au/product/as-60529-2025

2. TÜV Rheinland – IP Testing.
   https://www.tuv.com/japan/en/about-us/laboratories/kansai-technology-assessment-center-%28ktac%29/ip-testing/

3. WorkSafe Queensland – Strengthening Electrical Safety in Queensland's Pools, Spas and Baths.
   https://www.worksafe.qld.gov.au/news-and-events/newsletters/esafe-newsletters/esafe-editions/esafe/april-2025/strengthening-electrical-safety-in-queenslands-pools-spas-and-baths