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Overview
- Compression-molded, high-impact strength, polyester body and cover
- Cover includes recessed, retained, combination head (Straight blade, Phillips and Torx drive) M4 or M6 stainless steel Type 316 screws
- Retained, continuous, high-temperature silicon gasket within a labyrinth seal between cover and body
- Durable and reusable, internal M4 or M6 stainless steel inserts for DIN- and Panel-mounting
- Covered mounting screw provisions outside of gasketed area, sized M4 (#8) or M6 (¼-in.)
- Mounting location dimensions are molded into the back side of the enclosure
- Panel mounting screws included, M4 or M6
- Compression-molded fiberglass with added agents to address static charge build-up
- High-impact strength as well as high temperature-rated
- Increased Safety: Ex e applications
Specifications
Application | Hazardous Environments |
Color | Black |
Depth | 120 mm |
Depth | 4.72 in |
Finish | Smooth Gloss |
Finish | Smooth Low Gloss |
Height | 44 IN |
Height | 10.04 |
Height | 255 |
IP Rating | IP66 |
Material | Glass-fibre reinforced polyester |
Material | Fiberglass;Polyester |
Material | Fiberglass |
Modification Services | No |
Mounting Screw Size | 1/4";M6 |
Mounting Screw Size | 1/4 |
Mounting Type | Panel or DIN-rail |
Nema Rating | Type 4, 4X, 12 |
NEMA Rating | 12 |
Panel | A255250P |
Panel Material | Plated Steel |
Panel Size | 9.45 x 9.17 x .06 in |
Panel Size | 72.00 x 72.00 in |
Product Family | Zonex |
Protection Rating | NEMA Type 12 |
Series | ZonEx |
Size | 250x255x120mm |
Thickness | 0.16 in |
Thickness | 51.40mm (2.024") |
Type | Fiberglass and Thermoplastic Industrial Terminal and Junction Boxes |
Type | Fiberglass and Thermoplastic Terminal and Junction Boxes |
Weight | 6.1 lb |
Width | 9.84 in |
Width | 23 IN |
Package Dimensions (L x W x H) | 10.4 IN x 10.1 IN x 5 IN |
Package Dimensions (L x W x H) | 26.416 cm x 25.654 cm x 12.7 cm |
Package Weight (Imperial) | 6.100 L |
Package Weight (Metric) | 2.767 kg |
4MB-P
Four Gang Masonry Box, 93.5 Cubic Inches, 3-3/4 Inches Long x 7-3/8 Inches Wide x 3-1/2 Inches Deep, 1/2 Inch and 3/4 Inch Concentric Knockouts, Galvanized Steel, Welded Construction, with #12 AWG Solid Ground Wire Pigtail, For use with Conduit
How to Install the EXE255250120 Enclosure
This guide provides step-by-step instructions for installing and configuring the EXE255250120 enclosure for electrical systems in potentially explosive atmospheres.
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Terminal connectors
- Mount the enclosure
Secure the EXE255250120 enclosure to a suitable surface using the provided mounting screws. Ensure it is level and firmly attached.
- Connect the electrical wiring
Strip the ends of the electrical wires and connect them to the appropriate terminals inside the enclosure. Use terminal connectors to ensure secure connections.
- Verify electrical connections
Use a multimeter to check the continuity and correctness of the electrical connections. Ensure that all connections are secure and meet safety standards.
- Seal the enclosure
Check the sealing of the enclosure for any damage. Replace the seal if necessary with a genuine seal from the manufacturer to maintain explosion protection.
- Perform initial testing
Power on the system and conduct initial tests to ensure that the enclosure and connected systems are functioning correctly. Monitor for any irregularities.
Frequently Asked Questions about nVent
What industries and applications are nVent products used for?
nVent products are engineered for critical infrastructure and industrial applications across multiple demanding sectors. Key markets include Construction, Data Centers, Defense, Healthcare, Mining, Oil & Gas Refineries, Power Plants, Rail/Transit, Renewable Energy, Security, Ship Building, Steel Mills, Telecom, and Utilities. Their solutions are designed to withstand extreme environmental conditions, with temperature ranges from -55°C to 105°C and specialized features like UV resistance, oil resistance, and flame resistance.
What environmental ratings do nVent products have?
nVent enclosures feature comprehensive environmental ratings, including UL 508A, CSA, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13 certifications. They are rated IEC 60529 IP66, providing robust protection against dust, water, and corrosion in both indoor and outdoor environments. These products operate effectively in temperatures ranging from -40°F to 266°F, with enhanced UV inhibitors for outdoor weathering and oil-resistant gaskets for superior sealing.
What accessories are available for nVent products?
nVent offers a comprehensive range of accessories across multiple product lines, including EMC accessories like bonding cable clamps and strain reliefs, inline accessories such as lock inserts and mounting brackets, CONCEPT accessories including panel conversion kits and rack-mount angles, and seismic accessories for specialized mounting requirements. Key accessory categories include grounding kits, DIN rail mounting solutions, panel supports, handles, and various mounting hardware compatible with different enclosure types.
What certifications and standards do nVent products comply with?
nVent products meet critical international certifications including UL (United States), CSA (Canada), CE (European Community), and EAC (Russia). Our products are designed to comply with rigorous industrial standards such as NEMA enclosure ratings, IEC 60529 IP ratings, and international safety standards across multiple industrial markets including oil & gas, power, manufacturing, and infrastructure.
What is nVent's warranty policy?
nVent offers a standard 18-month warranty from invoicing date for most automation products, covering defects in workmanship and materials. The warranty requires proper transportation, handling, storage, and installation within specified environmental conditions. Warranty coverage includes repair or replacement at nVent's discretion, with certain conditions such as authorized service repairs and operation within designed capacity limits.
What technical support does nVent offer?
nVent offers comprehensive technical support through multiple global contact centers across North America, South America, Europe, Middle East, India, and Asia. Customers can reach technical experts by phone at regional numbers, with the North American headquarters in Minneapolis, MN providing primary support at +1.763.421.2240. Additionally, nVent provides online support resources through their website, including CAD drawing downloads and an 'Ask The Expert' feature to assist with product technical inquiries.