Littelfuse HCB-3/30/L - 120/240V 30A 3P CIRCUIT BREAKER, LUGS
Littelfuse

HCB-3/30/L

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Specification Sheet

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Minimum Qty: 20

Multiplier: 20

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Overview

The Littelfuse HCB-3/30/L is a robust and reliable 3-pole circuit breaker engineered for demanding industrial and commercial electrical distribution systems. Operating at 120/240V with a substantial 30A current rating, this breaker is designed to provide essential overcurrent protection, safeguarding sensitive equipment and personnel from the hazards of electrical faults. Its three-pole configuration makes it ideal for applications requiring simultaneous switching of all three phases, commonly found in three-phase motor control and power distribution panels. The HCB series from Littelfuse is recognized for its durable construction and consistent performance, making the HCB-3/30/L a trusted component for critical infrastructure. The integrated lug connections offer a secure and straightforward method for electrical termination, ensuring a stable and low-resistance connection that is vital for efficient power flow and long-term reliability. This feature simplifies installation and maintenance, reducing downtime and operational costs. Key applications for the Littelfuse HCB-3/30/L include: * **Panelboards and Switchgear:** As a fundamental protective device within main distribution panels and sub-panels. * **Motor Control Centers (MCCs):** Providing crucial overload and short-circuit protection for industrial motors. * **Industrial Machinery:** Protecting the electrical circuits of various types of manufacturing and processing equipment. * **Commercial Buildings:** Ensuring the safety and integrity of electrical systems in offices, retail spaces, and other commercial facilities. Littelfuse is a globally recognized leader in circuit protection, and the HCB-3/30/L exemplifies their commitment to quality and safety. This circuit breaker is built to meet stringent industry standards, offering peace of mind to engineers, electricians, and facility managers. Its design prioritizes ease of integration into existing electrical infrastructure while delivering the high level of protection expected from a premium manufacturer. The compact footprint of the HCB-3/30/L also allows for efficient use of space within electrical enclosures, a critical consideration in modern installations. When selecting circuit protection, the Littelfuse HCB-3/30/L stands out as a dependable choice for applications demanding robust performance and unwavering safety.
  • 120/240V voltage rating for versatile power distribution.
  • 30A current rating suitable for moderate to heavy loads.
  • 3-pole configuration for three-phase applications.
  • Secure lug connections for reliable electrical termination.
  • Robust Littelfuse HCB series construction for industrial durability.

Specifications

Connection Type
Lugs
Current Rating
30 A
Poles
3P
Series
HCB
Voltage Rating
120/240 V
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Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.