Siemens HED43B125L Molded Case Circuit Breaker – 125A – 3-Pole / 3-Phase – 480V – 42kA @ 480V – Feed-Thru – Sentron HED Series

The Siemens HED43B125L is a 125A, 3-pole, 3-phase molded case circuit breaker from the Siemens Sentron HED Series. It features thermal-magnetic protection and is designed for compatible electrical distribution applications.

The HED43B125L has a maximum voltage rating of 480V and provides a 42kA interrupting rating at 480V with standard interrupting capacity. It uses a feed-thru configuration and is complete with Long-Time and Instantaneous (LI) trip functions and line- and load-side lug terminals.

Specifications:

• Manufacturer: Siemens
• Product Type: Molded Case Circuit Breaker
• Product Family: Sentron
• Series: HED
• Type: HED
• Catalog No.: HED43B125L
• Current Rating: 125A
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Maximum Voltage Rating: 480V
• Interrupting Rating: 42kA @ 480V
• Interrupting Capacity: Standard
• Protection Type: Thermal-Magnetic
• Trip Functions: Long-Time and Instantaneous (LI)
• Connection / Configuration: Feed-Thru
• Terminal Type: Line-Side and Load-Side Lug Terminals
• Application: Electrical Distribution and Overcurrent Protection
• Brand: Siemens

Part Numbers & Identification:

• Manufacturer Part Number (MPN): HED43B125L
• Catalog Number: HED43B125L
• Model: HED43B125L
• Product Family: Siemens Sentron Circuit Breakers
• Series: HED
• Type: HED
• Brand: Siemens
• Manufacturer: Siemens
• Product Type: Molded Case Circuit Breaker
• Breaker Configuration: 3-Pole, 125A
• Trip Configuration: Long-Time and Instantaneous (LI)
• UPC:783643236530 

Compatibility:

Designed for use with compatible Siemens Sentron HED Series electrical distribution equipment that accepts HED Series molded case circuit breakers. The HED43B125L provides 125A, 3-pole thermal-magnetic overcurrent protection for compatible 480V electrical distribution applications.

The breaker features a feed-thru configuration, LI trip functions, and line- and load-side lug terminals. Always verify the specific panelboard or electrical equipment model, approved breaker type, system voltage, available fault current, pole configuration, trip requirements, terminal arrangement, and installation requirements before installation.

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