Authorized nVent Distributor
nVent APWK133NF - Window Kit Type 4 and 12 , 15.50x5.50, Gray ANSI 61, Mild Steel

nVent APWK133NF Window Kit Type 4 and 12 , 15.50x5.50, Gray ANSI 61, Mild Steel

UPC: 783510218805

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 Window Kit (SKU: APWK133NF) is a high-performance, corrosion-resistant solution designed for Type 4 and 12 enclosures, ensuring reliable visibility and protection in demanding industrial environments. Engineered from durable mild steel with a Gray ANSI 61 finish, this window kit delivers exceptional durability while maintaining compliance with NEMA standards for indoor and outdoor applications. The 15.50 x 5.50-inch dimensions provide ample viewing area for monitoring gauges, displays, or internal components without compromising enclosure integrity, making it an ideal choice for control panels, electrical enclosures, and machinery housings where operational visibility is critical. Designed for seamless integration, the nVent Window Kit features a simple rectangular enclosure cut-out, simplifying installation for professionals across industries such as manufacturing, utilities, oil & gas, and renewable energy. Its robust construction resists environmental stressors like dust, water, and corrosion, ensuring long-term performance in harsh conditions. The Gray ANSI 61 coating enhances visibility while providing an aesthetically consistent finish that aligns with industrial safety and compliance standards. Key applications include monitoring control panels in water treatment facilities, inspecting electrical components in outdoor substations, and observing process indicators in chemical processing plants. The window kit’s compatibility with Type 4 (watertight) and Type 12 (dust-tight) enclosures makes it a versatile solution for facilities requiring both protection and visibility. Professionals selecting this kit benefit from nVent’s reputation for engineering durable, high-quality electrical solutions backed by decades of industry expertise. Installation is straightforward, requiring only a precise cut-out in the enclosure door or cover, with allowance for gaskets, handles, and other components. The mild steel construction ensures structural integrity while the ANSI 61 finish provides a professional, corrosion-resistant surface. For applications where metallic materials are restricted, nVent offers non-metallic alternatives, but the APWK133NF remains the preferred choice for environments where strength and durability are paramount. Backed by nVent’s commitment to innovation and reliability, the APWK133NF Window Kit is a trusted component in critical infrastructure, ensuring operational efficiency and safety across diverse industrial settings. Whether deployed in a factory floor control panel or an outdoor electrical enclosure, this window kit delivers uncompromising performance where visibility and protection are non-negotiable.
  • Window kits of the same size use the same interchangeable cut-out
  • The gasket material on all windows is resistant to oils, cutting fluids and many other liquids
  • All required hardware is furnished, along with assembly and cut- out instructions
  • The clear window of the Steel and Stainless Steel Window Kit is made of .25-in. (6mm) impact-resistant polycarbonate material
  • Non-Metallic Window kit are made of a single piece polycarbonate material

Specifications

Accessory Type
Window Kits
Application
Controls and Drives;Power Distribution
Application
Power Distribution; Controls and Drives
Color
Gray
Color
Gray ANSI 61
Color Code
ANSI 61
Cutout Size
18.69 x 7.19 in
Cutout Size
14.69 x 4.69 in
Finish
Powder Coated
IP Rating
IP66
Material
Mild Steel
Material
Mild Steel;Steel
Modification Services
Yes
Mounting Type
Rectangular Cut-Out
Nema Rating
Type 4 and 12
Size
15.50 x 5.50
Size
15.50x5.50 in
Thickness
1.9 mm
Thickness
14 ga
Thickness
51.40mm (2.024")
Type
Industrial Door Mounting and Locks
Type Number
Type 4
Weight
2.8 lb
Window Size
13.00 x 3.00 in
Window Size
343 x 366 mm
Works With
NEMA / IEC
Package Dimensions (L x W x H)
17.7 IN x 7.7 IN x 3.3 IN
Package Dimensions (L x W x H)
44.958 cm x 19.558 cm x 8.382 cm
Package Weight (Imperial)
2.800 L
Package Weight (Metric)
1.270 kg
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How to Install the APWK133NF Window Kit

This guide provides step-by-step instructions for installing the APWK133NF window kit into an enclosure, ensuring proper alignment and secure mounting.

Estimated time: 30m

Tools needed:

Screwdriver, Torque wrench

Supplies needed:

Mounting clamps, Nuts, Window

  1. Prepare the cutout

    Make a rectangular cutout of 14.69 x 4.69 inches (373 x 119 mm) in the enclosure where the window will be mounted.

  2. Remove protective paper

    Carefully remove the protective paper from both sides of the window to ensure a clean installation.

  3. Install the window

    Place the window into the frame within the stud perimeter, ensuring it is properly aligned.

  4. Secure the frame

    Position the frame and window against the enclosure, with the studs protruding through the cutout.

  5. Tighten the nuts

    Assemble the clamps and nuts to the studs, align the window, and tighten all nuts to a torque of 15−20 in-lbs (1.7−2.3 Nm).

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.