nVent MB070404PSK - MultiBox Opaque Screw Cover with Knockouts Type 4X, 7.08x4.33x4.37, Lt Gray, Polystyrene, PSK
nVent

MB070404PSK

UPC: 635394600590


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Installation Instructions

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Overview

The nVent Multibox Opaque Screw Cover Enclosure (SKU: MB070404PSK) is engineered for demanding industrial applications where robust protection of electrical and instrumentation components is paramount. Designed as a high-performance junction box or instrumentation enclosure, this unit excels in environments characterized by corrosive elements, moisture, and dust. Its robust construction ensures the integrity and longevity of sensitive equipment, making it an ideal choice for a wide array of industrial sectors. Constructed from durable, light gray polystyrene, this enclosure offers exceptional resistance to chemicals and environmental degradation. The opaque screw cover design provides security and protection against UV exposure, further enhancing its suitability for outdoor or harsh indoor installations. The integrated knockouts offer flexible conduit entry points, simplifying installation and wiring processes for electricians and system integrators. This feature allows for efficient cable management and adaptation to various site-specific requirements. Key features and benefits of the nVent Multibox Opaque Screw Cover Enclosure include: * **Superior Environmental Protection:** Rated Type 4X, this enclosure provides excellent protection against water ingress and dust, ensuring the safety of internal components in washdown or dusty environments. * **Corrosion Resistance:** The polystyrene material is inherently resistant to a broad spectrum of corrosive chemicals, making it suitable for chemical plants, wastewater treatment facilities, and marine applications. * **Secure Screw Cover:** The opaque screw cover design offers a secure closure, protecting contents from tampering and environmental factors like UV radiation. * **Versatile Knockouts:** Pre-drilled knockouts facilitate easy and adaptable conduit connections, streamlining installation and reducing labor costs. * **Durable Construction:** Manufactured by nVent, a trusted leader in electrical enclosure solutions, this Multibox unit is built for reliability and long-term performance. This enclosure is particularly well-suited for applications in the oil and gas industry, chemical processing, food and beverage manufacturing, and general industrial automation. Its compact dimensions (7.08" x 4.33" x 4.37") make it versatile for mounting in tight spaces while still providing ample room for wiring and small devices. Professionals rely on nVent enclosures for their consistent quality, adherence to industry standards, and the peace of mind that comes with deploying dependable equipment. The UNSPSC code 39121324 further categorizes this product within the electrical enclosure systems market, highlighting its specific industrial utility. When selecting an enclosure for critical electrical components in challenging conditions, the nVent Multibox Opaque Screw Cover Enclosure stands out as a reliable and cost-effective solution, manufactured in Canada for global distribution.
  • Durable light gray polystyrene construction for chemical and UV resistance.
  • Type 4X rating ensures protection against water and dust ingress.
  • Opaque screw cover provides secure closure and UV protection for contents.
  • Integrated knockouts offer flexible conduit entry for easy installation.
  • Ideal for junction box or instrumentation enclosure in corrosive industrial environments.
  • Continuous gaskets made of polyurethane foam guarantee optimal integrity
  • All enclosures can be easily modified to customer specifications

Specifications

Application
Corrosive Environments; Controls and Drives
Color
Light Gray
Finish
Smooth Matte
Material
Polystyrene
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.
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.