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Combination Switched Socket IP66 | 1-16 Gang | 16A-63A | Outdoor Waterproof
Outdoor Waterproof Switch-Combination Switched Socket
KRIPAL manufactures combination switched socket outlets in the UKW1 series for industrial and commercial power distribution in harsh and outdoor environments. These units combine an IP66 rated socket outlet with an integral rotary isolator switch in a single weatherproof enclosure, providing a safe and convenient power connection point for portable equipment, temporary supplies and outdoor installations. Available in rated currents from 16A to 63A at 230/400V AC with 2P+E, 3P+E and 3P+N+E configurations, the UKW1 accepts standard IEC 60309 industrial plugs (commonly called CEE-form plugs) and features a mechanical interlock that prevents the plug from being inserted or withdrawn while the switch is in the ON position. The enclosure is molded from UV-stabilized, impact-resistant engineering thermoplastic with a hinged transparent cover that allows visual confirmation of the switch position and plug insertion status without opening the enclosure. Certified to IEC 60309-1 and IEC 60309-2 for industrial plugs and socket-outlets, KRIPAL combination switched sockets are installed in factories, construction sites, marinas, caravan parks, agricultural buildings and outdoor event venues.
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Ask a QuoteCombination Switched Socket Selection for Outdoor Power Distribution
A combination switched socket outlet integrates a socket outlet with a local isolator switch in one enclosure, providing a convenient power connection point where the operator can safely connect and disconnect equipment without needing to access a remote distribution board to isolate the circuit. The mechanical interlock between the switch and the socket ensures that the plug can only be inserted or withdrawn when the switch is OFF (dead socket), eliminating the risk of connecting or disconnecting under load which would draw an arc and potentially injure the operator. The IP66 enclosure protects the socket and switch from water, dust and mechanical impact, making the unit suitable for outdoor installation without additional weather protection. This selection guide covers current rating, pole configuration, interlock safety features and installation environment.
UKW1 Combination Switched Socket Series Technical Specifications
Current Rating and IEC 60309 Compatibility
The UKW1 is fitted with a standard IEC 60309 socket outlet (blue for 230V, red for 400V) in the specified current rating and pole configuration. The current rating (16A, 32A, 63A) determines the socket’s physical size and pin diameter, with each rating having a different keyway position to prevent a lower-rated plug from being inserted into a higher-rated socket. The pole configuration is identified by the clock-face position of the earth pin relative to the keyway: 6h for 230V 2P+E, 6h for 400V 3P+E, and 6h for 400V 3P+N+E (IEC 60309 uses the earth pin position as the voltage and frequency identifier, with 6h = 50/60 Hz standard). The socket’s IP rating is IP66 when the plug is fully inserted and the enclosure cover is closed (if no plug is inserted, the cover must be closed to maintain the IP66 rating).
Mechanical Interlock Safety System
The UKW1 mechanical interlock operates as follows: the plug can only be inserted when the switch is in the OFF position (the interlock blocks the socket aperture). Once the plug is fully inserted, the switch can be turned ON (the interlock releases the switch mechanism). When the switch is ON, the interlock prevents the plug from being withdrawn (the plug is locked in the socket). The interlock operates purely mechanically, with no electrical sensing, making it inherently fail-safe regardless of the supply status. The interlock also prevents the enclosure cover from being closed over an inserted plug (the cover interferes with the plug body, forcing the operator to either remove the plug and close the cover, or leave the cover open with the plug inserted and the switch ON). This mechanical safety system satisfies the requirements of IEC 60309 for interlocked socket-outlets.
IP66 Enclosure and Environmental Resistance
The UKW1 enclosure is injection-molded from glass-fiber reinforced polyamide (PA6-GF30) with UV stabilizers and is tested to IP66 per IEC 60529. The enclosure sealing uses a closed-cell silicone foam gasket in a tongue-and-groove joint around the cover perimeter, and the cable entries are via IP68 cable glands on the enclosure bottom face. The enclosure material has an impact resistance of IK08 (5 Joules) per IEC 62262, meaning it withstands the impact of a 1.7 kg mass dropped from 300mm, equivalent to a dropped hand tool or a glancing kick from a work boot. The enclosure is rated for continuous outdoor service in ambient temperatures from minus 25 to plus 60 degrees Celsius, and the transparent cover is UV-stabilized to prevent yellowing and embrittlement over a 20-year service life.
Mounting Options and Cable Entry
The UKW1 enclosure has integral mounting lugs for surface mounting on walls, posts or equipment frames using M6 or M8 fixings. The enclosure is supplied with a blank gland plate on the bottom face with pre-marked knockout positions for M20, M25 and M32 cable glands. The supply cable enters through a gland on the bottom face and connects to the switch input terminals, while the socket outlet is mounted on the enclosure front face or on an angled face (depending on the model). For multiple socket installations (for example, a row of 4 switched sockets on a marina pontoon), the enclosures can be mounted side-by-side with interconnecting cable glands. The enclosure includes a separate earth terminal for the supply earth conductor, with continuity to the socket earth pin, the switch metal parts and the enclosure mounting bracket.
Specify Switched Sockets for Your Installation
- Socket Configuration: Provide your voltage, current and pole requirements, and we specify the correct UKW1 model with IEC 60309 socket.
- Site Layout Support: Request a recommended socket layout for your marina, caravan park or construction site power distribution.
- OEM/Project Supply: Source UKW1 switched sockets in bulk with custom labeling for your project requirements.
Outdoor Power Distribution for Events, Construction and Industrial Sites
KRIPAL UKW1 combination switched sockets provide safe, weatherproof power connection points wherever portable or temporary electrical equipment needs to be connected and disconnected in outdoor or harsh industrial environments. The integral switch and mechanical interlock ensure that connections and disconnections are always made on a dead socket, protecting the operator from arc flash and the equipment from contact erosion.
Construction Site Temporary Power Distribution
A construction site uses UKW1 32A 3P+N+E 400V red switched sockets on the site distribution board to supply power to equipment such as concrete mixers, welding machines and tower crane auxiliary supplies. The mechanical interlock ensures that construction workers connect and disconnect equipment only with the switch OFF, preventing the dangerous practice of “hot-plugging” under load. The IP66 enclosure protects the socket from rain, dust and concrete splatter, and the impact-resistant housing withstands the rough handling typical of a construction site.
Marina and Harbor Shore Power Connections
Marinas use UKW1 16A and 32A 230V blue switched sockets on pontoons to provide shore power to berthed vessels for battery charging, air conditioning and galley appliances. The IP66 enclosure withstands continuous exposure to salt spray, rain and wave splash. The socket cover is closed when not in use to prevent water ingress, and the switch is OFF until a vessel connects its shore power cable and the marina operator activates the supply.
Caravan Park and Campsite Hook-Up Points
Caravan parks use UKW1 16A 230V blue switched sockets at each pitch to provide the electrical hook-up for touring caravans and motorhomes. Each pitch has its own switched socket mounted on a bollard, with the switch allowing the park operator to activate the supply after the caravan’s connecting cable has been plugged in. The interlock ensures caravanners cannot accidentally disconnect under load when packing up to leave.
Industrial Plant Maintenance Power Points
Manufacturing plants install UKW1 32A and 63A switched sockets at strategic locations to provide power for portable equipment: welding machines, pressure washers, portable conveyors and maintenance tools. The switched socket provides a safe, standardized connection point that eliminates the practice of “temporary” wiring from distribution boards for each maintenance task. The switch is turned OFF and the socket cover closed when not in use.
Outdoor Event and Festival Power Distribution
Outdoor festivals and events use UKW1 63A 3P+N+E switched sockets on the temporary power distribution system to supply stage lighting, sound systems and catering equipment. The interlock safety system is valued by event safety officers because it prevents stage crew from hot-plugging high-power connectors. The IP66 enclosure protects the socket from rain (events continue regardless of weather), and the impact-resistant housing withstands being knocked by flight cases and equipment dollies.
Specify Outdoor Power Connection Points
- Site Survey Support: Our applications team reviews your site layout and recommends UKW1 socket locations and ratings.
- Project Documentation: Obtain IEC 60309 test certificates and IP66 compliance reports for project health and safety files.
- Bulk Supply: Source UKW1 switched sockets in bulk for marina, caravan park and construction site projects.
KRIPAL Combination Switched Socket Manufacturing: Built for Outdoor Endurance
KRIPAL combination switched sockets are manufactured in a dedicated assembly facility where IP66 enclosures are machined for socket and switch mounting, the IEC 60309 socket outlet is integrated with an interlocked rotary switch, and the complete assembly undergoes electrical safety testing including dielectric withstand and interlock function verification for global outdoor industrial power distribution.
IP66 Enclosure Fabrication and Machining
Enclosures are fabricated from UV-stabilized polycarbonate or powder-coated steel, CNC-machined for socket outlet cutouts, switch mounting, cable gland entries, and ventilation drains. Each machined enclosure undergoes an IP66 water-jet test before component installation to verify that all cutouts are within the gasket sealing envelope and no ingress paths exist.
Interlocked Switch-Socket Mechanism Assembly
The interlock mechanism ensures that the plug cannot be inserted or withdrawn when the switch is ON, providing arc-free connection and disconnection per IEC 60309-4. The mechanical interlock is functionally tested on every assembled unit: attempted plug insertion with switch ON must be blocked, and switch operation must not be possible unless a plug is fully inserted.
IEC 60309 Socket Outlet Integration
Socket outlets are assembled to IEC 60309-1 and IEC 60309-2 standards with the specified pin configuration (3P plus E, 3P plus N plus E), voltage color coding, and keyway position for the rated voltage and frequency. Contact tube retention force is verified on sample sockets from each production batch to ensure stable contact pressure over the service life.
RCBO and MCB Protection Module Assembly
Combination units fitted with integrated MCB or RCBO protection are assembled with factory-wired connections between the socket outlet, switch, and protective device. Every wired assembly undergoes a continuity and polarity test, and the protective device is trip-tested to verify correct operation within the completed assembly. Earth continuity from socket earth pin to enclosure earth terminal is verified below 0.1 ohms.
Distributor Stock Holding Programs for Combination Switched Sockets
KRIPAL supports distributor inventory programs with agreed stock levels for popular combinations: 16A and 32A sockets with 1 to 4 gang configurations, standard voltage/color codes, and common RCBO ratings. Custom configurations are available with defined lead times.
Private Label and OEM Branding for Combination Switched Sockets
Custom enclosure branding, OEM nameplates with your part numbers, and project-specific wiring diagrams are available. KRIPAL supports the supply of pre-configured combination units to match local market standards and distributor catalog systems.
Multi-Region Certification and Compliance Support
CE, UKCA, and IEC 60309-1/2/4 EN 60309-1/2/4 compliance documentation is provided according to target export markets. Technical documentation files are maintained and updated in line with evolving outdoor electrical installation regulatory requirements.
Direct Technical Access to KRIPAL Assembly Engineers
Your technical team communicates with the engineers who designed and assembled your combination switched sockets. Application questions including IP rating verification, cable gland selection, and protective device coordination receive answers within 24 hours during China business hours.
Frequently Asked Questions
Explore FAQ >It is a socket outlet with an integrated switch in a single IP66 enclosure. The switch provides local isolation and ON/OFF control for the connected equipment without needing a separate switch installation.
Count the number of simultaneous equipment connections required. Add 2 spare gangs for future expansion. A typical construction site power station uses 4 to 8 gang configurations.
Yes, IP66 rating provides complete protection against dust and powerful water jets. UV-stabilized enclosures prevent degradation from continuous sun exposure.
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