nVent HB33421 - FH CLASS J 30A, Bulletin HB2 (Busbar Components - Busbar Accessories), Size/Dims: 7.87x4.17x5.20, Material: Plastic
nVent

HB33421

UPC: 783510266028

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Overview

The nVent HB33421 FH CLASS J 30A Busbar Accessory is a precision-engineered plastic component designed for Class J fuse systems in industrial and commercial electrical busbar applications. Part of the nVent HB2 series, this accessory delivers reliable mounting and protection for busbar components with a 30A current rating, ensuring safe and efficient power distribution in demanding environments. Manufactured from high-durability plastic, the HB33421 maintains dimensional stability and long-term resistance to environmental stresses, including temperature fluctuations and mechanical wear. Its compact dimensions of 7.87 x 4.17 x 5.20 inches (200 x 106 x 132 mm) allow seamless integration into tight panel spaces, making it ideal for space-constrained installations such as electrical panels, switchgear, motor control centers, and renewable energy systems. This accessory supports rigid and stranded copper conductors with cross-sections ranging from 16 AWG to 10 AWG for rigid conductors and 16 AWG to 3 AWG for stranded conductors, accommodating both fine-stranded and solid-core cables. The HB33421 is rated for IP20 protection, safeguarding against accidental contact with live parts while enabling adequate ventilation for heat dissipation. It features padlockable and sealable capabilities when open or closed, ensuring compliance with lockout/tagout (LOTO) procedures for enhanced safety in critical applications. Designed for compatibility with the HB2 series busbar components, the HB33421 simplifies system upgrades and reduces downtime. Installation is straightforward with a recommended tightening torque of 2-2.5 Nm (18-22 lb-in) using a PZ2 screwdriver, ensuring consistent and reliable connections. The accessory meets stringent industry standards, including UL 4248-1, UL 4248-4, and UL 4248-8, guaranteeing compliance with safety and performance requirements.
  • 30A current rating for Class J fuse systems
  • IP20 protection against accidental contact with live parts
  • Supports rigid (16-10 AWG) and stranded (16-3 AWG) copper conductors
  • Compact dimensions: 7.87 x 4.17 x 5.20 inches (200 x 106 x 132 mm)
  • Padlockable and sealable for LOTO compliance
  • Compatible with HB2 series busbar components
  • UL 4248-1, UL 4248-4, UL 4248-8 compliant
  • Recommended tightening torque: 2-2.5 Nm (18-22 lb-in) with PZ2 screwdriver

Specifications

Package Dimensions (L x W x H)
8.07 IN x 4.37 IN x 5.35 IN
Package Dimensions (L x W x H)
20.4978 cm x 11.0998 cm x 13.589 cm
Package Weight (Imperial)
3.040 L
Package Weight (Metric)
1.379 kg
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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.