Siemens ED43B125 Molded Case Circuit Breaker – 125A – 3-Pole / 3-Phase – 480V – 18kA @ 480V – Bolt-On – Sentron ED Series

The Siemens ED43B125 is a 125A, 3-pole, 3-phase molded case circuit breaker from the Siemens Sentron ED Series. It features thermal-magnetic protection with Long-Time and Instantaneous (LI) trip functions and a standard interrupting capacity.

The ED43B125 is rated for 480V and provides an 18kA interrupting rating at 480V. It uses a bolt-on mounting configuration, includes load-side lug terminals, and is designed for compatible Siemens electrical distribution applications.

Specifications:

• Manufacturer: Siemens
• Product Type: Molded Case Circuit Breaker
• Product Family: Sentron
• Series: ED
• Type: ED
• Catalog No.: ED43B125
• Current Rating: 125A
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Voltage Rating: 480V
• Interrupting Rating: 18kA @ 480V
• Interrupting Capacity: Standard
• Protection Type: Thermal-Magnetic
• Trip Functions: Long-Time and Instantaneous (LI)
• Trip Type: Not specified
• Mounting Type: Bolt-On
• Terminal Type: Load-Side Lug Terminals
• Temperature Rating: 40°C
• Application: Electrical Distribution and Overcurrent Protection
• Brand: Siemens

Part Numbers & Identification:

• Manufacturer Part Number (MPN): ED43B125
• Catalog Number: ED43B125
• Model: ED43B125
• Product Family: Siemens Sentron Molded Case Circuit Breakers
• Series: ED
• Type: ED
• Brand: Siemens
• Manufacturer: Siemens
• Product Type: Molded Case Circuit Breaker
• Breaker Configuration: 3-Pole, 125A 
• UPC:783643209503

Compatibility:

Designed for use with compatible Siemens Sentron ED Series electrical distribution equipment that accepts bolt-on molded case circuit breakers. The ED43B125 provides 125A, 3-pole thermal-magnetic overcurrent protection for compatible 480V applications.

The breaker includes load-side lug terminals and features Long-Time and Instantaneous (LI) trip functions. Always verify the specific panelboard or load center model, approved breaker type, system voltage, available fault current, pole configuration, terminal arrangement, and installation requirements before installation.

Certifications:

• Specific Certifications: Not specified

Returns are easy

You may return items within 10 days of delivery for a refund.

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