Authorized nVent Distributor
nVent MB252503PS - MultiBox Opaque Screw Cover Type 4X, 2.55x2.55x3.18, Lt Gray, Polystyrene, PS

nVent MB252503PS MultiBox Opaque Screw Cover Type 4X, 2.55x2.55x3.18, Lt Gray, Polystyrene, PS

UPC: 635394601184


Documents & Media
Installation Instructions

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The nVent MultiBox Opaque Screw Cover Enclosure, SKU MB252503PS, is engineered for superior protection of electrical and instrumentation components in demanding industrial environments. Constructed from durable, light gray polystyrene, this enclosure offers robust resistance to corrosive elements, making it an ideal choice for applications where environmental integrity is paramount. Its compact dimensions of 2.55 x 2.55 x 3.18 inches provide a versatile solution for housing smaller junction boxes, control modules, or sensor assemblies. Designed to meet stringent industry standards, the MultiBox series is specifically built for use as electrical junction boxes or instrumentation enclosures. The opaque screw cover design ensures the security and protection of internal components from UV radiation and physical tampering, while the Type 4X rating signifies exceptional protection against water and dust ingress, as well as corrosion resistance. This makes it suitable for a wide array of challenging settings, including chemical processing plants, wastewater treatment facilities, marine environments, and outdoor installations where exposure to harsh chemicals, moisture, and debris is a constant concern. Professionals rely on nVent for their commitment to quality and innovation in enclosure solutions. The MB252503PS benefits from nVent's extensive experience in designing enclosures that not only safeguard sensitive equipment but also facilitate efficient installation and maintenance. The polystyrene material offers a balance of durability and ease of modification, allowing for custom cutouts if required for cable glands or conduit entries. The screw cover mechanism provides a secure, yet accessible, means to open the enclosure for servicing or inspection, ensuring minimal downtime. Key features and benefits of the nVent MultiBox Opaque Screw Cover Enclosure include: * **Robust Construction:** Made from high-quality, light gray polystyrene for long-term durability and chemical resistance. * **Type 4X Rating:** Provides superior protection against water, dust, and corrosion, ensuring component longevity in harsh conditions. * **Opaque Screw Cover:** Offers enhanced security and protection from UV exposure and physical damage. * **Compact Size:** Ideal for housing smaller electrical junctions, instrumentation, or control devices. * **Versatile Applications:** Suitable for chemical plants, marine environments, outdoor installations, and other corrosive settings. * **Ease of Installation:** Designed for straightforward mounting and accessible component servicing. When selecting an enclosure for critical equipment, the nVent MultiBox series, exemplified by the MB252503PS, offers a reliable and cost-effective solution. Its design prioritizes the protection of valuable assets, contributing to operational continuity and safety in the most demanding industrial landscapes. The UNSPSC code 39121324 further categorizes this product within the electrical enclosure market, highlighting its specific utility for electrical junction and outlet boxes. Manufactured in Canada (CA), this enclosure upholds high standards of quality and performance.
  • Durable light gray polystyrene construction for chemical resistance
  • Type 4X rating ensures protection against water, dust, and corrosion
  • Opaque screw cover design for enhanced security and UV protection
  • Compact 2.55x2.55x3.18 inch dimensions for versatile component housing
  • Ideal for electrical junction and instrumentation enclosures in harsh environments
  • All enclosures can be easily modified to customer specifications

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
2.55x2.55x3.18 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
Eclipse Inner Panel - Fits Encl. 30 x 30 - Steel/Wht

EP3030

Eclipse Inner Panel - Fits Encl. 30 x 30 - Steel/Wht
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
External operation handle 0-1 type S3 Black IP65

14333111

External operation handle 0-1 type S3 Black IP65
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 MB252503PS Multibox Enclosure

Installation guide for mounting and wiring the MB252503PS Multibox series enclosure.

Estimated time: 30m

Tools needed:

Screwdriver, Drill (if mounting holes are needed), Wire strippers, Pliers

Supplies needed:

Mounting screws, Wire connectors, Gasket (if not pre-installed), Cable glands (if needed)

  1. Select Mounting Location

    Choose a suitable location for the MB252503PS enclosure. Ensure the environment is appropriate for the enclosure's NEMA/IP rating and temperature range. Refer to the datasheet for specific environmental considerations.

  2. Prepare the Enclosure

    If using an enclosure with knockouts (e.g., PCK, PSK, PCCTK, PSCTK series), select the appropriate knockout locations for cable entry. Remove knockouts using pliers or a suitable tool. If no knockouts are present, plan for drilling mounting holes. For enclosures without knockouts, drill mounting holes as needed, ensuring they do not compromise the enclosure's integrity or gasket seal.

  3. Mount the Enclosure

    Securely mount the MB252503PS enclosure to the desired surface using appropriate mounting screws. Ensure the enclosure is level and firmly attached. If using a back plate, mount it first according to its specific instructions.

  4. Install Cable Glands (if applicable)

    If using cable glands, install them into the prepared knockout holes or drilled openings. Ensure a tight seal to maintain the enclosure's environmental rating.

  5. Route Wiring

    Feed the necessary electrical wires through the installed cable glands or openings into the enclosure. Ensure proper strain relief is applied to the cables.

  6. Make Electrical Connections

    Connect the internal wiring according to your system's requirements. Use appropriate wire connectors and ensure all connections are secure and insulated. Refer to any internal diagrams or external datasheets for specific wiring configurations.

  7. Close and Secure the Enclosure

    Carefully close the enclosure cover, ensuring the gasket is properly seated to maintain a watertight and dust-tight seal. Secure the cover using the provided non-metallic corner screws. Tighten screws evenly.

  8. Final Inspection

    Visually inspect the installed enclosure to ensure all seals are intact and all connections are secure. Verify that the enclosure is properly mounted and all openings are sealed.

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.