Siemens Q390H 90 Amp Molded Case Circuit Breaker – 3 Pole – 240 V – 22 kA@240 V – Plug-On – Q Series

The Siemens Q390H is a 90 Amp, 3-pole molded case circuit breaker from the Siemens Q Series. It is rated for a maximum of 240 V with a 22 kA interrupting capacity at 240 V and features thermal-magnetic protection with Long-Time and Instantaneous (LI) trip functions. The breaker includes line and load-side lug terminals and plug-on mounting.

Specifications

• Manufacturer: Siemens
• Brand: Siemens
• Product Type: Molded Case Circuit Breaker
• Series: Q
• Catalog Number / MPN: Q390H
• Primary Rating: 90 Amp
• Poles / Configuration: 3 Pole
• Phase: 3 Phase
• Voltage: 240 V
• Interrupting Rating: 22 kA @ 240 V
• Interrupting Capacity: Standard
• Trip Type: Thermal-Magnetic
• Trip Functions: LI – Long-Time and Instantaneous
• Connection / Mounting: Plug-On
• Terminals: Line & Load-Side Lug Terminals

Part Numbers & Identification

• Manufacturer: Siemens
• Brand: Siemens
• Catalog Number: Q390H
• Series: Q
• Current Rating: 90 A
• Pole Count: 3 Pole
• Product Type: Thermal-Magnetic Molded Case Circuit Breaker
• Trip Functions: LI – Long-Time and Instantaneous
• Terminals: Line & Load-Side Lug Terminals
• UPC:783643156487 

Compatibility

The Siemens Q390H is designed for compatible Siemens Q Series panelboard and loadcenter applications using plug-on mounting. Verify the specific panelboard, system voltage, mounting configuration, terminal requirements, and breaker compatibility before installation.

Returns are easy

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

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