Contact for Pricing
Overview
- Used on all nVent HOFFMAN Type 4 and 12 disconnect enclosures with a universal flange cutout
- An operator adapter is required to install a disconnect in Bulletin A21, A28, A34, A35 and A4L3D HOFFMAN enclosures that have a universal cutout
- Operator adapters include an adapter plate and additional components needed to interlock the master door with the disconnect operating mechanism
- Installation instructions are included with each operator adapter
- Each brand and type of disconnect requires a different operator adapter
- 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
Accessory Type | Mounting Accessories |
Application | Arc Flash Safety;Controls and Drives;Power Distribution |
Application | Controls and Drives; Power Distribution; Arc Flash Safety |
Color | Gray |
Color Code | ANSI 61 |
Consist Of | Operator Adapter |
Depth | 13 mm |
Depth | 0.5 in |
Finish | Powder Coated |
Height | 44 IN |
Height | 10.56 in |
Material | Mild Steel |
Material | Steel |
Modification Services | Yes |
Nema Rating | Type 4 and 12 |
Thickness | 12 ga |
Thickness | 2.66 mm |
Thickness | 51.40mm (2.024") |
Type | Other Accessories |
Weight | 1.4 lb |
Width | 62 mm |
Width | 2.44 IN |
Works With | NEMA |
Package Dimensions (L x W x H) | 19.4 IN x 4.5 IN x 3 IN |
Package Dimensions (L x W x H) | 49.276 cm x 11.43 cm x 7.62 cm |
Package Weight (Imperial) | 1.400 L |
Package Weight (Metric) | 0.635 kg |
AB253
The NEMA 3R enclosures feature a standard padlock-able handle feature. They are galvanised steel coated with Pulvalar 115 powder
RC50
This RC50 connector is a non-metallic electrical box accessory for NM cable securement. It is gray in color and finish, with a 1/2" size and a 2-5/8" length. The connector has a tapered point, 3 flutes, a 1-3/8" thread length, and National Coarse 1/4"-20 threading.
OWC
Old Work Box Support Clip. Clips Lock Old-Work Steel Switch Boxes Tightly To Wall Plaster, Dry Wall, Concrete Block, Brick Or Concrete. Adapts To Any Wall Thickness Up To 3/4 Inch
H8084HLL
8x8x4 Polycarbonate Enclosure NEMA 4X | Hinged Cover | Gray | Stainless Steel Locking Latch | Mounting Feet
How to Install the WAMTF Operator Adapter
This guide provides step-by-step instructions for installing the WAMTF Operator Adapter for Westinghouse Type AMT Flex Shaft Handle Mechanisms for circuit breakers.
Estimated time: 1h
Tools needed:
Screwdriver, Drill, Wrench
Supplies needed:
Adapter plate, Plate gasket, Mounting screws, Flat washers, Lockwashers, Hex nuts, Interlock blade
- Install the adapter plate
Secure the adapter plate and plate gasket inside the enclosure behind the rectangular opening. Use four screws and four nylon washers to secure it in place.
- Assemble the operating handle
Attach the Westinghouse 'AMTOP' operating handle to the mounting plate installed in step 1. Omit the cap screw and lockwasher that fits into the bottom hole of the handle.
- Install the slide arm
Place the slide arm over the projecting part of the 'AMTOP' operating handle. Insert the shoulder collar through the oval slot in the slide arm and secure it with a long cap screw and lockwasher.
- Connect the slide arm to the lock release mechanism
Attach the bottom of the slide arm to the offset arm of the lock release mechanism using two flat washers, two lockwashers, and two hex nuts. Do not tighten yet.
- Adjust the safety lock release mechanism
Check the adjustment of the roller bracket to ensure the door latch hits the latch stop when closed. Adjust as necessary. Then, adjust the length of the slide arm so the safety lock releases just before the master door is fully latched.
- Install the interlock blade
Attach the cover interlock blade to the tapped spacer on the door using the provided screws and lockwashers. Ensure the blade clears the interlock lever extension by 1/4 inch when the handle is in the 'OFF' position.
- Drill and tap holes for disconnect
Drill and tap holes in the panel for the disconnect as per Westinghouse instructions. Refer to the instructions for the correct location and size.
- Install the panel
Place the panel in the enclosure.
- Mount the disconnect switch
Secure the disconnect switch or circuit breaker on the panel following the Westinghouse instructions.
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.