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Siemens HED43B070L Sentron Series 70A 3-Pole Circuit Breaker

Siemens HED43B070L 70A 3-Pole Molded Case Circuit Breaker

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ManufacturerSiemens

Part numberHED43B070L

Amperage 70A

Voltage 480V AC

Poles 3

Interrupt Rating 42kA@480V

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Includes Line and Load Lugs Thermal Magnetic Trip Long-Time and Instantaneous Protection 42kAIC Interrupt Rating Sentron Series Quality 480V AC Operation

Product description

The Siemens HED43B070L is a 3-pole molded case circuit breaker from the Sentron Series, designed for robust circuit protection. It features a thermal magnetic trip unit with LI (Long-Time and Instantaneous) trip functions, rated for 70A and 480V. This breaker offers a high interrupting capacity of 42kA at 480V, ensuring reliable performance in demanding electrical environments [1, 2, 10, 17, 24]. The 'L' designation indicates it comes equipped with line and load lugs.

This circuit breaker is essential for industrial and commercial power distribution systems, safeguarding equipment in panelboards, switchboards, and motor control centers. Its application spans industries such as manufacturing, utilities, and building management, where dependable fault current interruption is critical.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens HED43B070L. We focus on delivering quality surplus components and exceptional customer support to meet your industrial automation needs.

Technical specifications

Amperage	70A
Voltage	480V AC
Poles	3
Interrupt Rating	42kA@480V
Frame Type	ED
Trip Type	Thermal Magnetic (LI)
Connection	Line/Load Lugs
Series	Sentron

Common applications

Industrial Power Distribution

Commercial Electrical Systems

Panelboards

Switchboards

Motor Control Centers

Heavy Machinery

Compatible systems

Panelboards Switchboards Motor Control Centers Industrial Enclosures

Also known as

Siemens HED43B070L Circuit Breaker Siemens 70A 3P LUG Breaker Sentron HED43B070L

Replaces / compatible with

The Siemens HED43B070L is part of the Sentron ED frame series. While specific direct replacements may vary, it functions as a reliable component in systems designed for this frame size and rating.

Technical note

Expert tip

The 'L' suffix on the HED43B070L indicates the presence of factory-installed line and load lugs, simplifying wiring and ensuring secure connections.

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Frequently asked questions

What are the primary protection functions of the Siemens HED43B070L circuit breaker?

The Siemens HED43B070L circuit breaker offers Long-Time and Instantaneous (LI) protection. This means it protects against sustained overloads (long-time) and high-magnitude short circuits (instantaneous), providing comprehensive safety for electrical circuits.