Littelfuse HCB-1/50/L - 120/240V 50A 1P CIRCUIT BREAKER, LUGS
Littelfuse

HCB-1/50/L


Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 50

Multiplier: 50

*Contact for lower quantities*

Overview

The Littelfuse HCB-1/50/L is a robust and reliable single-pole circuit breaker engineered for critical overcurrent protection in demanding industrial and commercial electrical systems. Designed to operate at 120/240V and rated for 50 Amperes, this breaker ensures the safety and integrity of electrical circuits by interrupting power flow during fault conditions such as short circuits and overloads. Its integrated lug terminals provide a secure and efficient connection point, simplifying installation and ensuring dependable electrical contact within panelboards, switchboards, motor control centers, and other critical power distribution equipment. Littelfuse, a globally recognized leader in circuit protection, delivers the HCB-1/50/L with a commitment to quality and performance. This circuit breaker is constructed with durable materials to withstand the rigors of industrial environments, offering long-lasting operational life and consistent protection. Professionals rely on Littelfuse breakers for their adherence to stringent safety standards and their proven track record in preventing equipment damage and safeguarding personnel from electrical hazards. The compact, single-pole design makes it an efficient choice for space-constrained applications while still providing substantial protection. Key features and benefits of the Littelfuse HCB-1/50/L include: * **Reliable Overcurrent Protection:** Effectively safeguards electrical circuits and connected equipment from damaging fault currents. * **Versatile Voltage and Amperage Rating:** Suitable for 120/240V systems with a 50A capacity, accommodating a wide range of industrial loads. * **Secure Lug Terminals:** Facilitates straightforward and dependable electrical connections, crucial for stable system performance. * **Durable Construction:** Built to endure harsh industrial conditions, ensuring longevity and consistent operation. * **Compact Single-Pole Design:** Optimizes space utilization in electrical enclosures and panelboards. This circuit breaker is an essential component for maintaining operational continuity and safety in sectors such as manufacturing, data centers, utilities, and building management. Its straightforward installation and robust design minimize downtime and maintenance requirements. When specifying circuit protection, the Littelfuse HCB-1/50/L offers a trusted solution for professionals seeking dependable performance and peace of mind. Its UNSPSC code is 39121603, categorizing it within the electrical circuit breakers and fuses product group.
  • 120/240V AC voltage rating
  • 50 Ampere current rating
  • Single-pole (1P) configuration
  • Integrated lug terminals for secure connections
  • Reliable overcurrent protection for industrial applications

Specifications

Connection Type
Lugs
Current Rating
50 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.