Clipsal by Schneider Electric | 56 Series 4 Pin 50A Cord Extension Socket 500V | IP66 Orange
The Clipsal 56CSC450-EO is a 56 Series cord extension socket rated 50A at 500V AC, wired 3P + E across four round pins. The 56CSC450-EO carries three actives and an earth with no neutral, so it suits three-phase loads that do not require a neutral connection. It is IP66 rated to AS 60529, conforms to AS/NZS 3120, and is classified socket-outlet type P.
Four-pin and five-pin 50A connectors appear nearly identical in a parts bin and will not mate with one another. The 3P + E configuration is the deciding characteristic: three actives and an earth, no neutral, which suits direct-connected three-phase motors, welders, and plant drawing no single-phase load through the same connector.
A lead-end socket lives a harder life than a fixed outlet, dragged across slab and left coiled in the weather between shifts. The IP66 rating keeps dust and hosed water out of the contact chamber. Screw terminals taking 2.5 to 25mm² and an M40 gland accepting 9 to 29mm cable cover the flexible sizes a 50A three-phase lead actually uses.
Features
- 50A rated current at 500V — rated operational voltage 500V AC 50Hz conforming to EN 60309-2, for three-phase industrial and commercial supply.
- 3P + E across four pins — three actives and an earth, with no neutral pin in the configuration.
- Socket-outlet type P — the pin pattern classification, which determines which plugs will mate with this socket.
- IP66 protection — dust tight and protected against powerful water jets, tested to AS 60529.
- Conforms to AS/NZS 3120 — the Australian and New Zealand approval and test specification covering cord extension sockets.
- Screw terminals 2.5 to 25mm2 — accepts the conductor range used on 50A three-phase flexible leads.
- M40 cable gland, 9 to 29mm — the gland seals cable outer diameters across that range at the entry.
- Polycarbonate housing with brass contact sleeves — polycarbonate body over brass sleeves at the contact interface.
- Straight body, external mounting — the connector runs in line with the cable and fits to a lead end, not a wall.
- Operating range -25 to 75 degrees C — covers Australian ambient conditions in exposed and unshaded positions.
- No neutral pin — loads requiring a neutral connection need a five-pin 3P + N + E configuration instead.
Where to use
- Three-phase leads without a neutral — the 56CSC450-EO terminates the socket end where the load draws three-phase only.
- Direct-connected motors and pumps — three-phase plant relocated around a site as work progresses.
- Welding and fabrication equipment — three-phase welders fed through a lead rather than a fixed outlet.
- Construction site distribution — 50A lead sets running from a distribution board out to work areas.
- Rural sheds and workshops — three-phase machinery in unsealed structures exposed to dust and driving rain.
- Temporary and event supply — three-phase installations set up, used, and struck down again.
The 56CSC450-EO carries no neutral pin, so any load requiring a neutral needs a five-pin connector instead. It is an external mounting connector for a lead end and is not a fixed wall socket outlet. Connector pairing, termination, and testing are the licensed electrician's determination, and lead assemblies must be tested and tagged where the workplace regime requires it.
