Littelfuse HCB-1/30/L - 120/240V 30A 1P CIRCUIT BREAKER, LUGS
Littelfuse

HCB-1/30/L

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Specification Sheet

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Minimum Qty: 50

Multiplier: 50

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Overview

The Littelfuse HCB-1/30/L is a robust and reliable single-pole circuit breaker engineered to provide essential overcurrent protection for a wide array of industrial and commercial electrical systems. Designed for demanding environments, this 120/240V, 30A breaker ensures the safety and integrity of electrical circuits by automatically interrupting power flow in the event of an overload or short circuit, thereby preventing potential damage to equipment and mitigating fire hazards. Its construction adheres to stringent industry standards, reflecting Littelfuse's commitment to quality and safety in electrical components. Featuring convenient lug terminations, the HCB-1/30/L facilitates secure and efficient connections within panelboards, switchgear, and distribution systems. This design choice simplifies installation and maintenance, ensuring a stable electrical interface critical for uninterrupted operation. The breaker's single-pole configuration makes it suitable for single-phase applications where protection of a single conductor is required. Professionals rely on Littelfuse for dependable circuit protection solutions, and the HCB-1/30/L exemplifies this trust with its durable build and consistent performance. Key applications for the Littelfuse HCB-1/30/L include: * **Industrial Control Panels:** Safeguarding motors, control circuits, and auxiliary power in manufacturing facilities. * **Commercial Building Distribution:** Protecting lighting circuits, HVAC systems, and general power distribution in offices and retail spaces. * **Machinery and Equipment Protection:** Integrating into OEM equipment to provide localized overcurrent protection. * **Utility and Infrastructure:** Used in substations and distribution networks for reliable circuit management. When selecting a circuit breaker, factors such as voltage rating, current capacity, interrupting rating, and termination type are paramount. The HCB-1/30/L meets the critical 120/240V and 30A requirements, offering a dependable solution for many standard electrical configurations. Its lug connections are designed for compatibility with common conductor sizes, ensuring a secure fit and minimizing the risk of loose connections, a common cause of electrical faults. The compact form factor of the HCB-1/30/L also allows for efficient use of space within electrical enclosures, a significant consideration in densely populated control panels. Littelfuse's extensive experience in circuit protection means that products like the HCB-1/30/L are not only built to perform but also to last, providing long-term value and peace of mind for electrical engineers, maintenance technicians, and facility managers. The reliability of this breaker contributes directly to operational uptime and the overall safety of electrical installations, making it a cornerstone component for critical power management.
  • 120/240V AC voltage rating for versatile power applications
  • 30 Ampere current rating suitable for moderate load circuits
  • Single-pole (1P) configuration for single-phase protection
  • Lug terminations for secure and efficient electrical connections
  • Reliable overcurrent protection from Littelfuse, a trusted manufacturer

Specifications

Connection Type
Lugs
Current Rating
30 A
Poles
1P
Series
HCB
Voltage Rating
120/240V
One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

LCMA6-8-C

One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.
JB5-2 2 POLE JUMPER 5.2MM SPACING

1SNK905302R0000

JB5-2 2 POLE JUMPER 5.2MM SPACING
JB5-5 5 POLE JUMPER 5.2MM SPACING

1SNK905305R0000

JB5-5 5 POLE JUMPER 5.2MM SPACING
Ground Lug

DNGL

Ground Lug
ZCT,LZR-030(V),EMPR,EXP

76512124011

ZCT,LZR-030(V),EMPR,EXP
INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M

83411621001

INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M

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.