Siemens B390H Molded Case Circuit Breaker – 90A – 3-Pole / 3-Phase – 240V – 22kA @ 240V – Bolt-On – B Series

The Siemens B390H is a 90A, 3-pole, 3-phase molded case circuit breaker from the Siemens / ITE B Series. It features thermal-magnetic protection with Long-Time and Instantaneous (LI) trip functions.

The breaker has a maximum voltage rating of 240V at 60Hz and provides a high interrupting rating of 22kA at 240V. It uses a bolt-on mounting configuration for compatible electrical distribution equipment.

Specifications:

• Manufacturer: Siemens / ITE
• Product Type: Molded Case Circuit Breaker
• Product Family: B Series
• Series: B
• Catalog No.: B390H
• Current Rating: 90A
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Maximum Voltage Rating: 240V
• Frequency: 60Hz
• Interrupting Rating: 22kA @ 240V
• Interrupting Capacity: High
• Protection Type: Thermal-Magnetic
• Trip Functions: Long-Time and Instantaneous (LI)
• Mounting Type: Bolt-On
• Application: Electrical Distribution and Overcurrent Protection
• Brand: Siemens

Part Numbers & Identification:

• Manufacturer Part Number (MPN): B390H
• Catalog Number: B390H
• Model: B390H
• Product Family: Siemens / ITE B Circuit Breakers
• Series: B
• Brand: Siemens
• Manufacturer: Siemens / ITE
• Product Type: Molded Case Circuit Breaker
• Breaker Configuration: 3-Pole, 90A
• UPC:783643264069

Compatibility:

Designed for use with compatible Siemens / ITE B Series electrical distribution equipment that accepts bolt-on molded case circuit breakers. The B390H provides 90A, 3-pole thermal-magnetic protection for compatible 240V, 60Hz electrical distribution applications.

The breaker features Long-Time and Instantaneous (LI) trip functions and a high 22kA interrupting rating at 240V. Always verify the specific panelboard or electrical equipment model, approved breaker type, system voltage, available fault current, pole configuration, mounting arrangement, and installation requirements before installation.

Certifications:

• Siemens / ITE B Series
• 90A Rated
• 3-Pole / 3-Phase
• 240V Rated
• 22kA @ 240V Interrupting Rating
• High Interrupting Capacity
• Thermal-Magnetic Protection
• Long-Time and Instantaneous (LI) Trip Functions
• Bolt-On Mounting

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