Appleton ATX PRE316RB Explosion-Proof Wall-Mounted Receptacle (16A, 3-Pin)
The Appleton ATX PRE316RB (by Emerson) is an industrial-grade, explosion-proof wall-mounted socket receptacle designed to safely deliver electrical power to stationary and mobile machinery in hazardous environments. Featuring an integrated, heavy-duty mounting box with a pre-installed cable gland, this pin-and-sleeve socket is fully ATEX and IECEx certified for use in Zone 1 and 2 (Gas) as well as Zone 21 and 22 (Dust) atmospheres.
Key Features
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Non-Interlocked Safety Disconnect: Engineered with a specialized patent-pending flameproof contact chamber. Electrical connection and mechanical separation take place safely within an enclosed internal cylinder, eliminating arcing risks when plugging or unplugging under active load.
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Dual-Gland Feed-Through Housing: Constructed with a spacious wall-mounting base that allows for easy wiring. It features a bottom-entry PG16 cable gland for tight strain relief and moisture anchoring, along with a secondary knocked-out port position for flexible system routing.
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Standardized Voltage Color-Coding & Keying: Displays high-visibility blue trim rings and voltage markers matching standard 200V AC to 250V AC operation profiles. Receptacles are physically keyed to accept matching ATX plugs (such as the PRE316PB), completely ruling out human cross-voltage error.
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Rugged Weatherproof Construction: Molded from a high-impact, UV-stabilized fiberglass-reinforced polyamide compound carrying an impressive mechanical shock score of IK10. The integrated spring-loaded flip lid maintains an IP66 ingress rating when fully sealed, keeping out aggressive water jets, industrial dust, and chemical vapors.
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High Short-Circuit Interruption Capacity: Rated with an impressive electrical short-circuit breaking capacity of 20 kA, protecting factory infrastructure from high-current system surges.
Technical Specifications
| Feature | Specification |
| Model Type / Part Designation | PRE316RB (Type: PCX Wall Mount) |
| Brand / Manufacturer | Appleton / ATX (Emerson Automation Solutions) |
| Product Series Group | ATX PRE Series Increased Safety |
| Current Load Capacity ($I_N$) | 16 A |
| Nominal Supply Voltage ($U_N$) | 200V AC to 250V AC (50/60Hz line networks) |
| Pin / Pole Matrix | 3-Pin Arrangement (2P + PE / 2 Poles + Earth Ground) |
| Explosion Protection Concepts | Ex de IIC T6 (Gas) | Ex tD A21 T80°C (Dust) |
| Hazardous Zone Approvals | Zones 1, 2, 21, and 22 (Ex II 2 GD) |
| Ingress & Mechanical Impact | IP66 / IK10 |
| Short-Circuit Protection ($I_{CC}$) | 20 kA |
| Terminal Wire Size Capacity | Accepts single/twin solid conductor loops up to 2*4mm2 |
| Global Certificates | ATEX Directive 2014/34/EU, IECEx, INMETRO, CE |
Applications
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Chemical Plants and Process Skids: Mounted along processing columns, mixing tanks, and material supply bays to power heavy-duty blending equipment and monitoring apparatuses safely.
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Onshore and Offshore Drilling Modules: Installed on terminal walls, repair shops, and tool rooms of oil rigs and gas extraction platforms to supply power to localized machinery networks.
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Grain Elevators and Milling Operations: Provides reliable wall-mounted electrical connection nodes inside processing mills and grain storage silos where highly explosive organic dust clouds are present.
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Wastewater Treatment Systems: Mounted in open pumping stations and chemical handling shelters where continuous dampness, salt air, and corrosive gases are present.
