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Overview
- Required for installing disconnects in nVent HOFFMAN Type 4 and 12 enclosures with universal flange cutouts.
- Compatible with Bulletin A21, A28, A34, and A4L3D HOFFMAN enclosures.
- Facilitates interlocking between the master door and the disconnect operating mechanism.
- Durable gray steel construction for robust performance.
- Ensures proper fitment for various disconnect switch and circuit breaker sizes (small/large handle configurations).
- A 400A (or greater) disconnect switch and 600A (or greater) circuit breaker require the large handle
- A 200A (or less) disconnect switch and 400A (or less) circuit breaker require a small handle
Specifications
Package Dimensions (L x W x H) | 19.25 IN x 4.5 IN x 3 IN |
Package Dimensions (L x W x H) | 48.895 cm x 11.43 cm x 7.62 cm |
Package Weight (Imperial) | 2.600 L |
Package Weight (Metric) | 1.179 kg |
SC100RR
One-Gang Low-Voltage Old Work Bracket, Length 4.32 Inches, Width 2.52 Inches, Depth 1.66 Inches, Color Orange, Material Non-Metallic
THP100
The THP100 is a padlocking, snap-on handle lock, designed for THQL breakers. The padlock is not included.
SBS
Adjustable far-side box stabilizer for electrical boxes. It clips on electrical boxes for additional support and is made of spring steel. The trade size is for 2-1/2" thru 4" metal studs, and the color is black.
DDL-PG21M
Introducing the DDL-PG21M, a high-performance industrial product designed to meet the rigorous demands of various applications. Engineered with precision, this product offers exceptional durability and reliability, making it an ideal choice for professionals in the industrial sector. The DDL-PG21M is versatile enough to be used in multiple settings, ensuring that it can adapt to your specific needs. Its robust construction guarantees longevity, reducing the need for frequent replacements and maintenance, which ultimately saves you time and money. With a focus on efficiency, this product enhances productivity in your operations, allowing you to achieve your goals with ease. Whether you are in manufacturing, construction, or any other industrial field, the DDL-PG21M is the perfect solution to elevate your performance and streamline your processes. Trust in the quality and innovation of the DDL-PG21M to deliver results that exceed your expectations.
H8084HLL
8x8x4 Polycarbonate Enclosure NEMA 4X | Hinged Cover | Gray | Stainless Steel Locking Latch | Mounting Feet
STBRK
Enclosure mounting bracket kits are specifically designed for flat surface and pole mounting. One kit includes two brackets as well as the hardware to securely fasten the brackets to a wide variety of enclosures allowing for a wide range of mounting options. Kit Details: Material: 1/8? Aluminum Bracket: (2) brackets each featuring a 6? flat bar section with (2) 3/8? holes to mount to a variety of H-bars to any pole or flat surface Fasteners: (4) 1/4? x 20 washers and (4) 1/4? x 20 carriage bolts (4) 1/4? x 20 nutsHow to Install the Hoffman A21SDA Operator Adapter
This guide provides step-by-step instructions for installing the Hoffman A21SDA Operator Adapter with Square D Bulletin 9422 flexible cable operating mechanisms in various Hoffman disconnect enclosures. Always verify proper function and clearances after installation to ensure safety and compliance with all codes.
Estimated time: 1h
Tools needed:
Screwdriver, Cutting tool (e.g., hacksaw), Drill and Tap set
Supplies needed:
Hoffman A21SDA Operator Adapter Kit, Square D Bulletin 9422 operating handle, Square D cable handle mechanism, Square D locking lever extension, Square D disconnect switch or circuit breaker, Square D operating rod (if required), Fasteners for switch/breaker mounting (per Square D instructions)
- Install Mounting Plate and Gasket
Install the mounting plate (item 15) and plate gasket (item 2) on the inside of the enclosure, behind the rectangular opening. Secure them in place with four screws (item 3).
- Remove Square D Stiffener Bracket
Discard the Square D stiffener bracket which is normally installed inside the enclosure flange behind the operating handle.
- Assemble Square D Operating Handle
Assemble the Square D operating handle and cable handle mechanism to the mounting plate. Omit the cap screw and lockwasher that fit into the bottom hole of the Square D operating handle.
- Modify Slide Arm (if applicable)
If installing in an enclosure with a disconnect on the centerpost, cut 2.5 inches off the bottom end of the slide arm (item 4). The bottom end has rectangular holes only.
- Install Slide Arm and Shoulder Collar
Install the slide arm (item 4) over the projecting part of the handle assembly (on the Square D operating handle) with the notch facing the door opening. Place the smaller diameter end of the shoulder collar (item 5) through the oval slot in the slide arm.
- Secure Slide Arm Assembly
Install the long cap screw (item 6) with lockwasher (item 7) through the shoulder collar into the bottom mounting hole of the Square D operating handle and tighten. Ensure the slide arm and interlock arm move up and down smoothly.
- Install Locking Lever Extension
Install the Square D locking lever extension according to Square D instructions.
- Attach Slide Arm to Lock Release Mechanism
Attach the bottom of the slide arm (item 4) to the offset arm of the lock release mechanism using two flat washers (item 8), two lockwashers (item 9), and two hex nuts (item 10). Do not tighten these nuts until adjustments are made in a later step.
- Check Roller Bracket Adjustment
For enclosures with a disconnect on the right flange, check the adjustment of the factory-installed roller bracket. The door latch should hit against the latch stop portion of the roller bracket when the door is closed and latched. Adjust the roller bracket up or down if necessary to ensure proper operation of the release mechanism.
- Adjust Slide Arm Length
Adjust the length of the slide arm assembly. The safety lock on the Square D handle operator should release just before the master door is fully latched. Lengthen the slide arm if the safety lock releases too soon, or shorten it if it releases too late. Once adjusted, tighten the nuts from Step 8.
- Attach Door Catch
Attach the Hoffman door catch (item 11) to the tapped spacer on the door using the bottom set of mounting holes, two screws (item 12), and lockwashers (item 13). The door catch prevents the door from opening when the switch is in the “ON” position. Bend the door catch up or down as needed to properly hook onto the locking lever extension of the Square D handle operator.
- Drill and Tap Panel Holes
Drill and tap holes in the panel as shown in the diagrams and tables provided in the Square D instructions. Refer to Square D instructions for locating fuse clip holes.
- Mount Switch or Circuit Breaker
Mount the switch or circuit breaker using Square D instructions and parts.
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.