nVent MB070765PC - MultiBox Opaque Screw Cover Type 4X, 7.08x7.17x6.46, Lt Gray, Polycarbonate, PC
nVent

MB070765PC

UPC: 635394599702


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Installation Instructions

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Overview

The nVent MultiBox Opaque Screw Cover (Type 4X, SKU: MB070765PC) is a high-performance, corrosion-resistant enclosure designed for demanding industrial environments where protection and durability are critical. Manufactured by nVent, a global leader in electrical and thermal management solutions, this MultiBox enclosure combines robust construction with versatile functionality to safeguard electrical junctions, instrumentation, and control components from harsh conditions. Engineered for use in highly corrosive environments, the MultiBox series is trusted by professionals across oil & gas, chemical processing, water treatment, and manufacturing industries for its reliability and long-term performance. Constructed from durable polycarbonate (PC) in a light gray finish, the MB070765PC features a Type 4X rating, ensuring superior protection against dust, water ingress, and corrosion. The opaque screw cover design provides an added layer of defense against UV exposure and chemical contaminants, making it ideal for outdoor installations or areas with elevated exposure risks. With external dimensions of 7.08 x 7.17 x 6.46 inches, this enclosure offers ample internal space for housing junction blocks, terminal strips, sensors, or small control modules while maintaining a compact footprint suitable for tight mounting locations. Designed for versatility, the nVent MultiBox Opaque Screw Cover is compatible with a wide range of MultiBox base enclosures, allowing for modular expansion as system requirements evolve. Its corrosion-resistant polycarbonate construction ensures compatibility with a broad spectrum of chemicals, including acids, alkalis, and solvents commonly found in industrial settings. The Type 4X rating also guarantees protection against hose-directed water and prolonged exposure to outdoor elements, making it a preferred choice for facilities operating in coastal regions or high-humidity environments. Installation is straightforward, with pre-drilled mounting holes and a secure screw cover mechanism that resists tampering and vibration. Professionals appreciate the ease of access for maintenance or reconfiguration, as the cover can be removed without tools in many configurations, streamlining inspections and upgrades. The light gray color not only enhances visibility in dimly lit areas but also reduces heat absorption, contributing to the longevity of internal components. nVent’s reputation for engineering excellence is reflected in the MultiBox series, which has been adopted by industry leaders for over two decades. The MB070765PC is backed by nVent’s commitment to quality, with rigorous testing to ensure compliance with international standards for electrical enclosures. Whether deployed in a petrochemical plant, a wastewater treatment facility, or a manufacturing floor, this enclosure delivers uncompromising protection and operational reliability. For engineers and technicians seeking a dependable solution for junction and instrumentation protection in corrosive environments, the nVent MultiBox Opaque Screw Cover Type 4X is an industry-proven choice.
  • Type 4X rated for superior protection against dust, water, and corrosion
  • Opaque polycarbonate construction in light gray for UV and chemical resistance
  • External dimensions: 7.08 x 7.17 x 6.46 inches for compact yet spacious housing
  • Compatible with MultiBox base enclosures for modular system expansion
  • Easy installation with pre-drilled mounting holes and secure screw cover
  • 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
6.46
Depth
164
Finish
Smooth Matte
Height
7.08
Material
Polycarbonate
Nema Rating
Type 4X
Product Family
MultiBox
Protection Rating
NEMA Type 4X
Series
MultiBox
Size
7.08x7.17x6.46
Style
Polycarbonate opaque cover enclosures with four non-metallic corner screws
Type
Fiberglass and Thermoplastic Wall Mounted Industrial Enclosures
Weight
1.01 lb
Width
7.17
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.
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
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
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
External operation handle 0-1 type S01 Red Nema 4,4x

140E2911

External operation handle 0-1 type S01 Red Nema 4,4x
Escutcheon black type B for Sircover 125-630A

44095015

Escutcheon black type B for Sircover 125-630A
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
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

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.