Series AC
AC Series Explosion-proof Plug and Socket
An interlocked plug and socket for temporary power and portable equipment in classified areas. The socket carries ON/OFF indication and the interlock holds the plug until the supply is off, so a live plug cannot be pulled. The housing is die-cast aluminium with an electrostatic spray finish; the entries are G3/4" or G1¼", rated 16 A to 63 A at 220–250 V or 380–415 V, 50 Hz, in an IP65 housing.
- Ex db eb IIB / IIC T4 Gb
- Ex tb IIIC T130°C Db
- 16 / 32 / 63 A
- 220–250 V / 380–415 V, 50 Hz
- G3/4" / G1¼" entry
- IP65 · interlocked
Technical data
| Parameter | Value |
|---|---|
| Series | AC |
| Product type | Plug and socket, interlocked |
| Ingress protection | IP65 |
| Rated voltage | AC 220–250 V / 380–415 V, 50 Hz |
| Rated current | 16 A / 32 A / 63 A |
| Poles | 1P+N+PE, 3P+PE, 3P+N+PE — all three available at 16 A, 32 A and 63 A |
| Ex marking | Ex db eb IIB T4 Gb; Ex db eb IIC T4 Gb; Ex tb IIIC T130°C Db |
| Temperature class | T4 — as marked on the sheet (T4, not T6) |
| Cable entry thread | G3/4" / G1¼" |
| Housing | Aluminium alloy, die-cast formed, high-pressure electrostatic plastic spray; stainless steel exposed fasteners |
| Wiring | Steel conduit or cable |
| Indication | Socket with ON/OFF indication |
| Interlock | Interlocking device between socket and plug — the plug can only be inserted or withdrawn with the supply off |
Features
- Interlocked — the socket and plug are interlocked so the plug can only be inserted or withdrawn with the supply off. For portable equipment in a classified area that is the point of the assembly.
- ON/OFF indication on the socket — the state of the assembly is visible at the point of use.
- T4, not T6 — the sheet marks this series at temperature class T4. If your area classification needs T6, this series is not the right one; tell us and we will check the range.
- Both gas groups on the sheet — IIB and IIC flameproof versions are both marked, so the group is matched to the area classification rather than assumed.
- 16 A / 32 A / 63 A — matching the usual sizes for hand tools, welding sets and temporary distribution.
- Pole options — 1P+N+PE, 3P+PE and 3P+N+PE, each available at 16 A, 32 A and 63 A, so single-phase tools and three-phase sets can be fed from the same series.
- Die-cast aluminium housing — high-pressure electrostatic plastic spray finish with stainless steel exposed fasteners, for outdoor and wash-down locations.
- Steel conduit or cable wiring — the installation method is not fixed by the assembly.
- IP65 — sealed against dust and water jets, so the assembly can be used outdoors and in wash-down areas.
- Dust marking on the same unit — Ex tb IIIC T130°C Db alongside the gas marking.
Where the AC series is used
- Maintenance power points on refineries, chemical plants and offshore facilities
- Portable tools and test equipment that has to be plugged in inside a classified area
- Welding sets, where the supply is connected and disconnected at the point of work
- Temporary distribution during shutdowns and turnarounds
- Anywhere the plug has to be removed regularly — the interlock is what makes that safe
Which current rating and how many poles?Tell us the equipment being fed, the current rating, the pole configuration and the entry thread you need, plus the zone and gas group. We will confirm the version and the exact marking against your area classification.
Part of the explosion-proof electrical apparatus range and detailed on the plugs and sockets page. Related equipment in the same range includes the BX series distribution box.
