nVent A72XD3EW18SSFTCLP - Sequestr External Disconnect Package 3-Door Type 4X, 72x118x18, Brushed, SS304
nVent

A72XD3EW18SSFTCLP

UPC: 783510279530

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Overview

The nVent Sequestr External Disconnect Package (SKU: A72XD3EW18SSFTCLP) is a premium 3-door Type 4X stainless steel enclosure designed to enhance electrical safety and operational efficiency in industrial environments. Engineered for seamless integration with existing power distribution systems, this external disconnect solution isolates incoming power from main enclosures, significantly reducing the risk of arc flash incidents when servicing internal components. Constructed from high-grade 304 stainless steel with a brushed finish, the enclosure delivers exceptional corrosion resistance against non-corrosive and mildly corrosive elements, making it ideal for both indoor and outdoor applications across diverse industries. This robust disconnect package includes a main enclosure paired with a Sequestr box, providing a complete solution for new installations or retrofitting existing systems. The Sequestr box can be purchased separately for applications requiring additional isolation points or upgrades to legacy enclosures. Inside the external enclosure, the disconnect switch and fuse block/circuit breaker are pre-mounted, with clearly labeled terminal connections to facilitate safe and efficient power routing to the main enclosure. The Type 4X rating ensures protection against windblown dust, rain, splashing water, and hose-directed liquids, ensuring reliable performance even in harsh operating conditions. Industries such as manufacturing plants, oil and gas facilities, water treatment centers, and renewable energy installations rely on nVent Sequestr enclosures to maintain compliance with stringent safety standards while optimizing maintenance workflows. The external disconnect design allows technicians to safely de-energize equipment before accessing internal components, minimizing downtime and reducing the risk of electrical hazards. Whether deployed in food processing plants, chemical refineries, or marine environments, the Sequestr External Disconnect Package delivers unmatched durability and operational reliability. Installation is streamlined thanks to the enclosure’s standardized dimensions (72x118x18 inches) and pre-drilled mounting points, compatible with most industrial panel configurations. The brushed stainless steel finish not only enhances corrosion resistance but also provides a professional appearance suitable for visible installations in cleanroom or controlled-environment settings. nVent’s reputation for engineering high-performance electrical solutions is underscored by the Sequestr line, which integrates seamlessly with other nVent products for comprehensive system solutions. For facilities prioritizing safety, longevity, and ease of maintenance, the nVent Sequestr External Disconnect Package (A72XD3EW18SSFTCLP) is the trusted choice. Its Type 4X certification, 304 stainless steel construction, and modular design make it a versatile solution for arc flash mitigation, power isolation, and system retrofits in demanding industrial applications.
  • Package includes a main enclosure and a Sequestr box.
  • Main enclosure 12 gauge Type 304 stainless steel
  • Sequestr enclosure is 14 gauge Type 304 stainless steel
  • Seams continuously welded and ground smooth
  • Interlocks doors of main control cabinet when disconnect switch is powered ON
  • Mechanical interlock on main control enclosure activated by master door, preventing slave door from being opened first
  • Provision for pass-through power into the main enclosure
  • Preferred Disconnect cutout
  • Quarter-turn, screwdriver slot latch on Sequestr Enclosure
  • Heavy-duty 3-point latching mechanism operated by Type 316L stainless steel PowerGlide padlocking handle on all doors

Specifications

Application
Arc Flash Safety; Corrosive Environments; Controls and Drives
Color
Unpainted
Depth
18.12 in
Depth
460 mm
Finish
Brushed #4
Height
72.12 in
Height
1,832 mm
Large Conductive Panel
A72PM78G
Large Panel
A72PM78
Large Panel Size
1524 x 1829 mm
Large Panel Size
60.00 x 72.00 in
Material
Stainless Steel
Material
Stainless Steel 304
Modification Services
Yes
NEMA Rating
4X Watertight, corrosion-resistant
Product Family
Sequestr
Protection Rating
NEMA Type 12
Size
72.12 x 118.75 x 18.12 in
Small Conductive Panel
A72PM40G
Small Panel
A72PM40
Small Panel Size
60.00 x 33.75 in
Small Panel Size
1524 x 857 mm
Thickness
1.98 mm
Thickness
14 ga
Type
Stainless Steel Freestanding Industrial Disconnect Enclosures
Weight
1,494 lb
Width
3,016 mm
Width
118.75 in
Package Dimensions (L x W x H)
125 IN x 36 IN x 82 IN
Package Dimensions (L x W x H)
317.5 cm x 91.44 cm x 208.28 cm
Package Weight (Imperial)
1494.000 L
Package Weight (Metric)
677.678 kg
Sequestr External Disconnect Package 2-Door Type 4X, 72x54x18, Brushed, SS304

A72XD5418SSFTCLP

Sequestr External Disconnect Package 2-Door Type 4X, 72x54x18, Brushed, SS304
Single Gang Universal Box Extension Adapter, Depth 1 Inch, 0 Outlets, with Gasket and Screws

IHEV

Single Gang Universal Box Extension Adapter, Depth 1 Inch, 0 Outlets, with Gasket and Screws

How to Install the Sequestr External Disconnect Enclosure

This guide provides step-by-step instructions for installing the Sequestr external disconnect enclosure to a control enclosure, ensuring proper mounting, wiring, and initial setup.

Estimated time: 1h

Tools needed:

Screwdriver, Drill, Volt meter, Wire strippers

Supplies needed:

Mounting screws, Terminal connectors, Hoffman hole seal, Hoffman blank adapter plate

  1. Power Down the System

    Turn off the local disconnect in the control enclosure and the feeder disconnect. Wear appropriate Personal Protective Equipment (PPE) and open the control enclosure.

  2. Prepare the Control Enclosure

    Remove the existing disconnect from the control enclosure and seal the existing hole with a Hoffman hole seal. Cover all components in the control enclosure to protect them.

  3. Mount the Sequestr Enclosure

    Remove the subpanel from the Sequestr enclosure. Hang the Sequestr enclosure on the control enclosure using M6x16mm bolts and secure it with washer head cap screws from inside the control enclosure.

  4. Install Circuit Breaker/Disconnect Switch

    Drill mounting holes for the circuit breaker in the panel and install the device according to the manufacturer's instructions. Secure the panel into the Sequestr enclosure with hex nuts.

  5. Wire the Circuit Breaker

    Install conduit and wires to the incoming side of the circuit breaker/disconnect switch in the Sequestr enclosure, ensuring all connections are secure.

  6. Power Up the System

    Remove any protective coverings, ensure the operator handle is in the 'OFF' position, close and latch the Sequestr and control enclosure doors, then turn on the feeder disconnect switch and verify system 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.