nVent MB050503PCK - MultiBox Opaque Screw Cover with Knockouts Type 4X, 5.11x5.11x2.95, Lt Gray, Polycarbonate, PCK
nVent

MB050503PCK

UPC: 635394600378

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Installation Instructions

Contact for Pricing

Overview

The nVent MultiBox Opaque Screw Cover Enclosure, SKU MB050503PCK, is engineered for demanding industrial applications where robust protection and environmental resistance are paramount. Designed as a high-performance electrical junction box or instrumentation enclosure, this unit excels in highly corrosive environments, safeguarding sensitive components from ingress of dust, water, and chemicals. Its durable polycarbonate construction offers exceptional impact resistance and UV stability, ensuring longevity even under harsh operating conditions. This enclosure features a Type 4X rating, signifying its suitability for both indoor and outdoor use, providing superior protection against water, dust, and corrosion. The opaque screw cover design ensures complete light blocking, which is critical for certain electronic components sensitive to UV exposure or light interference. Pre-knocked out openings facilitate straightforward conduit and cable entry, streamlining the installation process for electrical contractors and maintenance professionals. The compact dimensions of 5.11 x 5.11 x 2.95 inches make it an ideal solution for space-constrained installations without compromising on internal volume for wiring and components. Key features and benefits include: * **Superior Environmental Protection:** Type 4X rating ensures robust defense against water, dust, and corrosive agents, ideal for chemical plants, wastewater treatment facilities, and marine environments. * **Durable Polycarbonate Construction:** Offers excellent impact resistance, chemical inertness, and UV stability for extended service life in challenging conditions. * **Opaque Screw Cover:** Provides essential light blocking for sensitive electronic equipment. * **Pre-Knocked Out Openings:** Simplifies conduit and cable management, reducing installation time and complexity. * **Compact and Versatile:** The 5.11x5.11x2.95 inch footprint is suitable for a wide range of junction box and instrumentation enclosure needs. * **Trusted nVent Quality:** Manufactured by nVent, a global leader in electrical enclosure solutions, ensuring reliability and performance. The nVent MultiBox series is a preferred choice for professionals seeking dependable enclosure solutions. Its design prioritizes ease of installation, maintenance, and long-term operational integrity. Whether used for housing control systems, power distribution, or sensitive monitoring equipment, this enclosure provides the necessary security and protection. The light gray color offers a neutral aesthetic suitable for most industrial settings. With its combination of material strength, environmental sealing, and practical design features, the MB050503PCK is an indispensable component for any robust electrical installation project.
  • nVent MultiBox Opaque Screw Cover Enclosure, SKU MB050503PCK
  • Durable light gray polycarbonate construction for superior impact and UV resistance
  • Type 4X environmental rating for protection against water, dust, and corrosion
  • Opaque screw cover design ideal for light-sensitive electronic components
  • Pre-knocked out openings for simplified conduit and cable installation
  • Continuous gaskets made of polyurethane foam guarantee optimal integrity
  • All enclosures can be easily modified to customer specifications

Specifications

Application
Controls and Drives; Corrosive Environments
Color
Light Gray
Color
Lt Gray
Finish
Smooth Matte
Material
Polycarbonate
Nema Rating
Type 4X
Series
MultiBox
Size
5.11x5.11x2.95
Size
5.11x5.11x2.95 inches
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
External operation handle 0-1 type S01 Red Nema 4,4x

140E2911

External operation handle 0-1 type S01 Red Nema 4,4x
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.