3-Phase 16A 5-Pin Adaptor

Using the 3-phase adaptor

Suitable for use with all PAT testers that have a standard 13A socket. 3-phase equipment can be tested for earth continuity and insulation resistance using this adaptor, but most test instruments are unable to carry out a 3-phase leakage, load or polarity test. If you’re unsure which adaptors are needed (and what tests can/can’t be done on 3-phase equipment), see our guide to PAT testing with adaptors.

3-phase power is most often used for industrial equipment and machinery. For more context on what PAT testing covers (and why it isn’t limited to “portable appliances”), see scope and exceptions.

Three-phase equipment may be wired in two different configurations: star or delta. A delta configuration does not require a neutral conductor, so it uses a 4-pin plug (3 phases + earth). A star configuration (also known as wye or Y) usually includes a neutral conductor, so it uses a 5-pin plug (3 phases + neutral + earth). We also supply a 4-Pin 3-phase 16A industrial adaptor.

These adaptors are constructed with BS EN 60309 industrial connectors made by PCE, a leading manufacturer of high quality connectors based in Austria.

Please note, these adaptors are intended for electrical testing use only. They can not be used to power 3-phase equipment from a single phase, 230V supply.