Littelfuse HCB-2/40/L - 120/240V 40A 2P CIRCUIT BREAKER, LUGS
Littelfuse

HCB-2/40/L

Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 25

Multiplier: 25

*Contact for lower quantities*

Overview

The Littelfuse HCB-2/40/L is a robust and reliable 2-pole circuit breaker engineered for critical electrical protection in demanding industrial and commercial environments. Designed to operate at 120/240V and rated for 40 Amperes, this breaker provides essential overcurrent protection, safeguarding sensitive electrical equipment and personnel from potential damage caused by short circuits and overloads. Its integrated lug terminals ensure a secure and dependable connection, facilitating straightforward installation and maintenance within electrical panels, distribution boards, and control systems. Littelfuse is a globally recognized leader in circuit protection, and the HCB-2/40/L exemplifies their commitment to quality and performance. This circuit breaker is constructed with durable materials to withstand the rigors of industrial settings, offering consistent and reliable operation over its service life. The two-pole design makes it suitable for applications requiring simultaneous switching of both lines in a single-phase system, common in many industrial power distribution configurations. Key features and benefits of the Littelfuse HCB-2/40/L include: * **High Performance:** Rated for 120/240V and 40A, providing ample capacity for many industrial loads. * **Secure Lug Connections:** Facilitates robust and reliable electrical connections, minimizing the risk of loose wiring and ensuring efficient current transfer. * **Two-Pole Design:** Ideal for single-phase circuits requiring simultaneous switching of both conductors, enhancing safety and control. * **Durable Construction:** Built to endure harsh industrial conditions, ensuring long-term operational integrity. * **Trusted Manufacturer:** From Littelfuse, a brand synonymous with quality and innovation in circuit protection solutions. This circuit breaker is an indispensable component for maintaining the integrity and safety of electrical systems in a wide array of applications. It is commonly found in manufacturing plants, processing facilities, data centers, and commercial buildings where reliable power distribution and protection are paramount. Professionals rely on Littelfuse breakers for their consistent tripping characteristics and their ability to protect valuable assets. The HCB-2/40/L's straightforward installation process, aided by its lug terminals, contributes to reduced downtime and efficient project completion. When selecting circuit protection, choosing a product from a reputable manufacturer like Littelfuse, with a proven track record in electrical safety, is crucial for ensuring the longevity and reliability of your electrical infrastructure. The HCB-2/40/L is a testament to this dedication, offering peace of mind through dependable overcurrent protection.
  • 120/240V AC voltage rating for versatile application
  • 40 Ampere current rating suitable for moderate to heavy loads
  • 2-pole configuration for single-phase circuit protection
  • Integrated lug terminals for secure and reliable electrical connections
  • From Littelfuse, a trusted leader in circuit protection solutions

Specifications

Connection Type
Lugs
Current Rating
40A
Poles
2P
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.