nVent HB918004 - SIZE 4, DC SWITCH, 1250a, 1KV, Bulletin HB3 (Open style DC switches - Open style DC switch), Size/Dims: 17.36x17.36x6.38, Material: Plastic, Finish: Lt Gray
nVent

HB918004

UPC: 783510218461

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Overview

The nVent HB918004 Size 4 DC Switch is a high-performance, open-style DC switch engineered for demanding industrial applications where reliable power distribution and precise current control are critical. Part of the trusted HB3 series from nVent, a global leader in electrical solutions, this switch delivers exceptional performance with a 1250A current rating and 1KV voltage capacity, making it ideal for high-power DC systems in renewable energy, battery storage, and industrial automation environments. Designed for harsh operating conditions, the HB918004 features a durable plastic housing with a light gray finish, ensuring resistance to corrosion, UV exposure, and mechanical stress. The switch is constructed with silver-plated copper terminals, providing superior conductivity and long-term reliability, even in high-temperature or high-vibration settings. With a compact footprint measuring 17.36x17.36x6.38 inches, this Size 4 switch is optimized for space-efficient installations without compromising on power handling capabilities. Key features of the nVent HB918004 include a 400-500 kcmil wire range for heavy-duty connections, a 159 lbf-in (18 N•m) tightening torque for secure terminations, and a mechanical operation rating of 8,000 cycles, ensuring durability in high-frequency switching applications. The switch is supplied without accessories, allowing for flexible customization based on specific system requirements. For grounded networks, it supports single polarity switching, enhancing safety in critical power distribution systems. Typical applications for the HB918004 include solar power plants, wind energy systems, battery energy storage systems (BESS), electric vehicle (EV) charging infrastructure, and industrial motor control centers. Its high DC rating (up to 1500 VDC) makes it particularly suitable for medium-voltage DC systems, where reliable isolation and switching are essential for operational safety and efficiency. nVent’s reputation for innovation and reliability in electrical protection and control solutions makes the HB918004 a trusted choice for engineers and system integrators. The switch’s compliance with industry standards and its compatibility with nVent’s extensive portfolio of electrical components ensure seamless integration into existing and new installations. Whether deployed in renewable energy projects, data centers, or heavy industrial facilities, the HB918004 provides the performance, safety, and longevity required for mission-critical applications. For professionals seeking a robust, high-current DC switch that combines durability, precision, and ease of installation, the nVent HB918004 stands out as a top-tier solution in the HB3 series. Its engineering excellence and adherence to stringent quality standards make it a preferred component for modern electrical systems where reliability cannot be compromised.
  • 1250A current rating with 1KV voltage capacity for high-power DC systems
  • Durable plastic housing with light gray finish for corrosion and UV resistance
  • Silver-plated copper terminals for superior conductivity and long-term reliability
  • 400-500 kcmil wire range with 159 lbf-in tightening torque for secure connections
  • 8,000 mechanical operation cycles for high-frequency switching durability
  • Compact 17.36x17.36x6.38 inch design for space-efficient installations
  • Supports single polarity switching for grounded networks
  • Ideal for renewable energy, battery storage, and industrial automation applications
  • Part of nVent’s trusted HB3 series with a reputation for engineering excellence

Specifications

Package Weight (Imperial)
51.400 L
Package Weight (Metric)
23.315 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.