GEN3 SC550 5 Pin 50A 500V Three Phase Fixed Surface Socket Outlet IP66

Description

The highest-current three-phase-plus-neutral socket in the range.

The GEN3 SC550 is a 5-pin, 50A fixed surface socket outlet with round pins, rated 500V three-phase and IP66, built for outdoor, industrial and wash-down environments. The five round pins carry three phases, a neutral and earth, providing a keyed connection point for three-phase equipment that also requires a neutral, and a standard single-phase flat plug cannot be connected. At 50A, it is the highest-current outlet in this five-pin range, suiting the heaviest three-phase machinery and plant. As a fixed (non-switched) outlet, it is live whenever its circuit is energised. Moulded in the Series 56 style from durable PCA18 virgin-grade plastic, it stands up to dust, water and demanding sites.

Key Features

• 5-pin, 50A fixed surface socket outlet
• 500V three-phase
• Five pins – three phases plus neutral and earth
• Round pin configuration – keyed three-phase connection
• Fixed (non-switched) – live whenever the circuit is on
• IP66 weatherproof – dust-tight and protected against high-pressure water jets
• Series 56 style
• Surface mount
• Body approximately 109 × 101 × 101mm
• Durable PCA18 virgin-grade plastic (no regrind)
• 316 stainless steel springs and screws
• Brass internal components, greater than 85% copper
• Operating temperature −25°C to +70°C
• Australian/NZ approval or compliance certificates held

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Five Pins: Three Phases Plus Neutral

The SC550's five round pins carry three active phases, a neutral and earth. The neutral pin is what sets the 5-pin socket apart from the 4-pin (three phases plus earth only): it suits three-phase equipment that also needs a neutral connection, such as where single-phase loads are taken from the three-phase supply. The round-pin keying keeps these circuits separate so a standard flat-pin plug cannot be connected by mistake.

50A for the Heaviest Three-Phase Loads

At 50A, the SC550 is the highest-rated outlet in this five-pin range, suiting the heaviest three-phase machinery and plant that draw more than the 40A SC540 or the lower-rated siblings can supply. It shares the same five-pin configuration and weatherproof build at the higher current rating.

Built for the Outdoors

Rated IP66, the SC550 is dust-tight and withstands high-pressure water jets, and operates across a −25°C to +70°C range. Moulded from PCA18 virgin-grade plastic with 316 stainless steel springs and screws and high-copper brass internals, it is built for long service in exposed and demanding locations, and is covered by Australian/NZ approval or compliance certificates.

Q: What is the difference between a 5-pin and a 4-pin socket?
A: The fifth pin. A 5-pin socket carries three phases plus neutral and earth, while a 4-pin carries three phases plus earth only. The 5-pin suits three-phase equipment that also needs a neutral.

Q: What is the difference between the SC550 and the rest of the 5-pin range?
A: The current rating. The SC550 is 50A, the SC540 is 40A, the SC532 is 32A, the SC520 is 20A and the SC510 is 10A. All are 5-pin round-pin 500V three-phase fixed IP66 sockets.

Q: Is the SC550 switched?
A: No. It is a fixed socket outlet with no switch, so it is live whenever its circuit is energised.