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nVent A90XD7818FTCLPG - Sequestr External Disconnect Pkg Gry In Type 12, 90.12x78.50x18.12, Gray, Steel
nVent

A90XD7818FTCLPG

UPC: 783510257873


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Overview

The nVent Sequestr External Disconnect Enclosure Package (SKU: A90XD7818FTCLPG) is a Type 12-rated solution designed to enhance electrical safety by isolating incoming power from the main enclosure during maintenance or servicing. This external disconnect system mitigates the risk of arc flash incidents, protecting personnel and equipment in industrial and commercial environments. Shipped as a pre-assembled unit, the package includes a disconnect switch and fuse block or circuit breaker mounted in a rugged steel enclosure, with integrated terminal connections that route power safely to the primary enclosure. The gray powder-coated finish provides corrosion resistance and durability, ensuring reliable performance in demanding conditions. Engineered for new installations, the Sequestr External Disconnect Enclosure Package simplifies compliance with NFPA 70E and OSHA safety standards by enabling lockout/tagout (LOTO) procedures without exposing workers to live electrical components. The Type 12 rating ensures protection against dust, falling dirt, and dripping non-corrosive liquids, making it ideal for use in manufacturing plants, data centers, healthcare facilities, and other environments where electrical safety is critical. The compact 90.12 x 78.50 x 18.12 mm dimensions allow for flexible installation in tight spaces, while the steel construction delivers long-term durability under heavy-duty conditions. Key applications include: - **Industrial machinery maintenance**: Isolating power to CNC machines, conveyors, and robotic systems for safe servicing. - **Commercial electrical rooms**: Protecting sensitive equipment in server rooms, telecom closets, and control panels. - **Renewable energy systems**: Safely disconnecting solar inverters, wind turbine controllers, and battery storage units. - **HVAC and refrigeration systems**: Ensuring safe access to compressors, pumps, and control panels in commercial buildings. Professionals choose the nVent Sequestr External Disconnect Enclosure Package for its robust construction, compliance with industry standards, and ease of installation. The pre-wired design reduces labor costs and minimizes downtime during setup, while the external mounting configuration allows for quick access to the disconnect switch without entering the main enclosure. nVent, a global leader in electrical and thermal management solutions, is trusted for its commitment to innovation, safety, and reliability. With decades of experience in industrial electrical protection, nVent products are specified by engineers and contractors worldwide for their performance and durability. For facilities prioritizing electrical safety, operational efficiency, and regulatory compliance, the Sequestr External Disconnect Enclosure Package delivers a proven solution that balances functionality with peace of mind. Whether upgrading existing systems or designing new installations, this product ensures that power isolation is both effective and accessible.
  • Interlocks doors of main control cabinet when disconnect switch is powered ON
  • Mechanical interlock on main control enclosure activated by master door prevents 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
  • Rugged PowerGlide Handle with three-point latch on main control enclosure
  • Concealed, easy-to-remove hinges
  • Grounding studs on body
  • Bonding provision on door
  • Conductive back panel included in Sequestr External Disconnect Enclosure

Specifications

Application
Controls and Drives; Power Distribution; Arc Flash Safety
Color
Gray
Depth
18.12 in
Depth
460 mm
Exterior Color
Gray
Exterior Color Code
ANSI 61
Finish
Powder Coated
Height
2,289 mm
Height
90.12 in
Interior Color
Gray
IP Rating
IP55
Material
Steel
Material
Mild Steel
Modification Services
Yes
NEMA Rating
12 Indoor, dust-resistant
Nema Rating
Type 12
Panel
A90PM78
Panel Size
78.00 x 72.00 in
Panel Size
1981 x 1829 mm
Product Family
Sequestr
Protection Rating
NEMA Type 12
Size
90.12x78.50x18.12
Size
90.12x78.50x18.12 in
Stiffener Locations
24 in
Stiffener Locations
610 mm
Thickness
16 ga
Thickness
1.52 mm
Type
Mild Steel Freestanding Industrial Disconnect Enclosures
Type Number
Type 12
Weight
1,026.75 lb
Width
1,994 mm
Width
78.5 in
Package Dimensions (L x W x H)
84 IN x 34 IN x 100 IN
Package Dimensions (L x W x H)
213.36 cm x 86.36 cm x 254 cm
Package Weight (Imperial)
1026.750 L
Package Weight (Metric)
465.734 kg
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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.