nVent MB100765PSCT - MultiBox Transparent Screw Cover Type 4X, 10.00x7.09x6.50, Lt Gray, Polystyrene, PSCT
nVent

MB100765PSCT

UPC: 635394600927


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Installation Instructions

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Overview

The nVent MultiBox Transparent Screw Cover Type 4X (SKU: MB100765PSCT) is a high-performance, corrosion-resistant enclosure designed for critical electrical and instrumentation applications where visibility and protection are equally essential. Engineered with a lightweight yet durable polystyrene (PSCT) construction in a light gray finish, this enclosure provides a clear, unobstructed view of internal components while safeguarding against harsh environmental conditions. The transparent cover allows for quick visual inspection of wiring, terminals, or instrumentation without compromising the integrity of the enclosure, making it an ideal choice for facilities where operational efficiency and safety are paramount. Designed to meet Type 4X standards, the MultiBox Transparent Screw Cover is specifically built to withstand exposure to corrosive atmospheres, moisture, dust, and even temporary submersion, ensuring long-term reliability in demanding industrial environments. Its robust construction resists the damaging effects of chemicals, UV radiation, and extreme temperatures, making it suitable for use in chemical processing plants, water treatment facilities, offshore platforms, and food and beverage production areas. The 10.00 x 7.09 x 6.50 inch dimensions provide ample internal space for junction boxes, control panels, or sensor housings, while the screw cover design ensures secure, tamper-resistant access. Professionals across industries such as oil and gas, pharmaceuticals, manufacturing, and utilities rely on nVent’s MultiBox series for its proven durability and ease of maintenance. The transparent cover eliminates the need to open the enclosure repeatedly for inspections, reducing downtime and enhancing operational safety. Installation is straightforward, with pre-drilled mounting holes and compatible accessories available from nVent’s extensive catalog. As part of the nVent portfolio, this product benefits from the company’s global reputation for engineering excellence, backed by rigorous testing and compliance with international standards. Key applications include: - Electrical junction and termination boxes in corrosive or wet environments - Instrumentation enclosures for sensors, transmitters, and control devices - Control panels for automation systems in manufacturing plants - Outdoor electrical installations requiring NEMA Type 4X protection - Temporary or permanent housing for sensitive electronic components Choosing the right enclosure is critical to protecting personnel, equipment, and processes. The nVent MultiBox Transparent Screw Cover Type 4X delivers unmatched visibility and protection, ensuring that critical systems remain accessible, compliant, and secure. Trusted by engineers and facility managers worldwide, nVent’s solutions are designed to meet the challenges of modern industrial environments with reliability and innovation.
  • Type 4X rated for corrosion, moisture, and dust resistance
  • Transparent polystyrene cover for easy internal inspection
  • Light gray finish with durable, lightweight construction
  • Dimensions: 10.00 x 7.09 x 6.50 inches for versatile applications
  • Screw cover design ensures secure, tamper-resistant access
  • Manufactured by nVent – a global leader in electrical and thermal management solutions
  • Ideal for oil & gas, chemical processing, water treatment, and manufacturing industries

Specifications

Application
Corrosive Environments; Controls and Drives
Color
Light Gray
Color
Lt Gray
Finish
Smooth Matte
Material
Polystyrene
Nema Rating
Type 4X
Series
MultiBox
Size
10.00x7.09x6.50 in
Type
Fiberglass and Thermoplastic Wall Mounted Industrial Enclosures
Panel 6.9 x 4.9 - Fits Encl. 8 x 6 - Alum

14A0705

Panel 6.9 x 4.9 - Fits Encl. 8 x 6 - Alum
Sealable and transparent protective covers BX4 and non-removable BX4-CA to protect the devices against accidental contact.

BX4

Sealable and transparent protective covers BX4 and non-removable BX4-CA to protect the devices against accidental contact.
Escutcheon black type B for Sircover 125-630A

44095015

Escutcheon black type B for Sircover 125-630A
Escutcheon black type B for Sircover 125-630A IP65

44095016

Escutcheon black type B for Sircover 125-630A IP65
1/2 Inch, 90 Degree, Two-Piece Liquidtight Non-Metallic Fitting, UL E32447, Temperatures up to 107 Degrees C, Nitril Rubber O-Ring, PVC, Grey

LT20D-NEW

1/2 Inch, 90 Degree, Two-Piece Liquidtight Non-Metallic Fitting, UL E32447, Temperatures up to 107 Degrees C, Nitril Rubber O-Ring, PVC, Grey
1/2 Inch, Straight, One-Piece Liquidtight Non-Metallic Fitting, CSA, UL E32447, Temperatures up to 60 Degrees C, PVC, Grey

LN43DA

1/2 Inch, Straight, One-Piece Liquidtight Non-Metallic Fitting, CSA, UL E32447, Temperatures up to 60 Degrees C, PVC, Grey
Cord Grip with NPT Threads, Locknut Included, NPT Thread Size 3/8 Inch, Cable Range 0.181 Inch/4.6mm to 0.312 Inch/7.9mm, Hole Clearance 0.670 Inch/17.0mm, Thread Length 0.53 Inch/13.5mm, IP68 Rating, Nylon, Black

LH38

Cord Grip with NPT Threads, Locknut Included, NPT Thread Size 3/8 Inch, Cable Range 0.181 Inch/4.6mm to 0.312 Inch/7.9mm, Hole Clearance 0.670 Inch/17.0mm, Thread Length 0.53 Inch/13.5mm, IP68 Rating, Nylon, Black
EP-RJG-M20-BL-A

1SNG618003R0000

EP-RJG-M20-BL-A
5,90" x 5,90" filter fan - 24Vdc - 20.6 cfm - RAL 9005 - Type 3R - IP55

FF12D24NN53

5,90" x 5,90" filter fan - 24Vdc - 20.6 cfm - RAL 9005 - Type 3R - IP55
12,80" x 12,80" filter fan - 115Vac - 285.3 cfm - RAL 7035 - Type 12

FF20A115UE1

12,80" x 12,80" filter fan - 115Vac - 285.3 cfm - RAL 7035 - Type 12

How to Install the MB040425PSCTK Enclosure

This guide provides step-by-step instructions for installing and configuring the MB040425PSCTK enclosure for electrical junctions in corrosive environments.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors

  1. Mount the enclosure

    Secure the MB040425PSCTK enclosure to a suitable surface using the provided mounting screws. Ensure it is level and firmly attached.

  2. Connect the wiring

    Strip the ends of the wires and connect them to the terminal connectors inside the enclosure. Ensure all connections are tight and secure.

  3. Verify electrical connections

    Use a multimeter to check the continuity of the connections. Ensure there are no shorts and that all connections are functioning correctly.

  4. Seal the enclosure

    Close the enclosure cover and ensure that all screws are tightened to maintain the integrity of the enclosure against corrosive environments.

  5. Calibrate the system

    If applicable, follow the manufacturer's instructions to calibrate any devices housed within the enclosure to ensure accurate operation.

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.