nVent MB042502PCCT - MultiBox Transparent Screw Cover Type 4X, 3.70x2.55x2.25, Lt Gray, Polycarbonate, PCCT
nVent

MB042502PCCT

UPC: 635394599399


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Installation Instructions

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Overview

The nVent MultiBox Transparent Screw Cover Type 4X (SKU: MB042502PCCT) is a high-performance electrical junction box designed to protect critical components in harsh industrial environments while enabling visual inspection of internal wiring and devices. Engineered from durable polycarbonate, this enclosure combines corrosion resistance, impact strength, and optical clarity to meet the demands of highly corrosive and hazardous locations. Part of nVent’s trusted MultiBox series, this enclosure is ideal for applications requiring Type 4X protection—resisting water, dust, and corrosion—while providing unobstructed visibility into the enclosure’s contents for maintenance and troubleshooting. This MultiBox enclosure features a transparent screw cover that allows technicians to quickly verify wiring integrity, component status, or potential issues without opening the enclosure, reducing downtime and improving operational efficiency. The light gray polycarbonate material offers exceptional chemical resistance, UV stability, and mechanical strength, making it suitable for use in chemical processing plants, water treatment facilities, offshore platforms, food and beverage production, and other demanding industrial settings. The compact 3.70 x 2.55 x 2.25 inch dimensions make it ideal for space-constrained installations, while the Type 4X rating ensures compliance with stringent NEMA and IP standards for outdoor and indoor use in wet or corrosive conditions. Professionals across industries rely on nVent MultiBox enclosures for their reliability and ease of installation. The transparent cover is secured with corrosion-resistant screws, ensuring long-term integrity even in aggressive environments. Installation is straightforward, with multiple knockouts for conduit entry and secure mounting options, allowing for flexible integration into existing systems. nVent, a global leader in electrical and thermal management solutions, is recognized for engineering products that meet the highest standards of safety, durability, and performance. The MultiBox series, in particular, is widely trusted by engineers and maintenance teams for its robust construction and compliance with international safety certifications. Key applications include serving as junction boxes for sensors, switches, and control panels in corrosive atmospheres; housing instrumentation for process monitoring; protecting electrical connections in food processing areas where washdowns are frequent; and safeguarding control components in marine or coastal environments. The Type 4X rating ensures the enclosure can withstand prolonged exposure to moisture, salt spray, and chemical vapors, making it a preferred choice for facilities operating in extreme conditions. With a Canadian origin, this product also aligns with North American manufacturing and safety standards, providing an added layer of assurance for project specifications and regulatory compliance. Choose the nVent MultiBox Transparent Screw Cover Type 4X for a solution that delivers visibility, protection, and peace of mind in the most challenging industrial environments. Backed by nVent’s reputation for innovation and quality, this enclosure is not just a component—it’s a critical part of your operational reliability strategy.
  • Type 4X rated for water, dust, and corrosion resistance
  • Transparent polycarbonate screw cover enables visual inspection
  • Compact 3.70 x 2.55 x 2.25 inch dimensions for space-constrained installations
  • Light gray color for UV stability and chemical resistance
  • Multiple knockouts and secure mounting options for flexible installation
  • All enclosures can be easily modified to customer specifications

Specifications

Application
Corrosive Environments; Controls and Drives
Color
Light Gray
Color
Lt Gray
Color Code
RAL 7035
Depth
2.25 in
Finish
Smooth Matte
Height
3.7 in
Ip Rating
IP66/IP67
Material
Polycarbonate
Nema Rating
Type 4X
Product Family
MultiBox
Protection Rating
NEMA Type 4X
Series
MultiBox
Size
3.70x2.55x2.25
Size
3.70x2.55x2.25 in
Style
Polycarbonate transparent cover enclosures with four non-metallic corner screws
Type
Fiberglass and Thermoplastic Wall Mounted Industrial Enclosures
Weight
0.16 lb
Width
2.55 IN
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.