Appleton ATX PRE316MB Explosion Proof Industrial Mobile Socket (16A, 3 Pin)
The Appleton ATX PRE316MB (by Emerson) is an explosion proof inline/mobile female socket receptacle. It provides safe, dependable temporary power to portable machinery and electrical equipment in hazardous industrial setups. This heavy duty plug connector features a protective hinged spring cover and a pin and sleeve configuration fully ATEX and IECEx certified for explosive atmospheres categorized as Zones 1 and 2 (Gas) as well as Zones 21 and 22 (Dust).
Key Features
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Dual Chamber Safety Disconnect Mechanism: Built with an advanced load breaking internal configuration. Contact separation takes place in a localized flameproof chamber, and the automatic electrical isolation of each individual phase is housed inside a secondary flameproof cell. This configuration confines electrical arcing to protect volatile surrounding gases during disconnects under load.
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High Interruption / Short Circuit Rating: Designed with a high short circuit rating of 20 kA, providing heavy duty surge and fault protection in high demand power systems.
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IEC Color Coded Coding & Keying: Outfitted with high visibility blue trim rings and identification labels denoting standard compliance with the 200V AC to 250V AC low voltage operational range. The internal terminal matrix is physically keyed to accept matching ATX plugs (such as the PRE316PB), completely ruling out cross voltage or phase mismatch risks.
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Ruggedized Construction & Spring Cap Shield: Molded from a lightweight, high impact polyamide compound carrying a rugged mechanical shock rating of IK10 (and IK09 at extreme freezing temperatures down to 25 degree C. The integrated blue flip lid cover seals the interior contacts to IP66 standards when completely closed, fully blocking dust, high pressure water streams, and chemical corrosion.
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Integrated Cable Management: Features a built in cable gland accommodating clean strain relief and moisture anchoring for incoming trailing cords.
Technical Specifications
| Feature | Specification |
| Model Type / Part Code | PRE316MB (Type: PCX) |
| Brand / Manufacturer | Appleton / ATX (Emerson Automation Solutions) |
| Product Series Classification | ATX PRE Series Increased Safety |
| Amperage Capacity (I_N) | 16 A |
| Nominal Operating Voltage (U_N) | 200V AC to 250V AC (50/60Hz frequency) |
| Pole & Pin Layout Matrix | 3 Pin Array (2P + PE / 2 Poles + Earth Ground) |
| Explosion Protection Concepts | Ex de IIC T6 (Gas) | Ex tD A21 T80°C (Dust) |
| Hazardous Environment Classification | Zones 1, 2, 21, and 22 (Ex II 2 GD) |
| Ingress & Mechanical Impact Ratings | IP66 / IK10 |
| Short-Circuit Protection (I_CC) | 20 kA |
| Operating Temperature Range | Max T amb} =+40degree C for T6/ +55degree C for T5 |
| Global Certificates & Compliance | LCIE 02 ATEX 6068 / IECEx, CE Compliant |
Applications
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Upstream and Midstream Oil & Gas Facilities: Supplies high reliability electrical coupling for mobile exploration rigs, temporary drilling mud agitators, and instrumentation carts on oil platforms.
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Refineries and Petrochemical Processing: Safely routes power loops for auxiliary machinery, industrial maintenance blowers, portable welding units, and testing equipment inside hazardous units.
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Marine Shipyards and Port Infrastructure: Utilized across wet docks, shipping vessel decks, and cargo hubs where moisture, salt fog, and flammable storage fumes are present.
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Chemical Dosing and Mixing Skids: Installed near bulk transfer stations, volatile pharmaceutical processing vessels, and storage tanks to power temporary transfer pumps safely.
