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Siemens JXD63B400 3-Pole 400A 600V Molded Case Circuit Breaker

Siemens JXD63B400 3-pole, 400A, 600V molded case circuit breaker.

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ManufacturerSiemens

Part numberJXD63B400

Type JXD

Poles 3

Ampere 400A

Volt 600V AC

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Veteran-owned

CAGE: 9NK75

3-Pole configuration 400 Amp rating 600 Volt AC 35kA interrupting capacity Thermal Magnetic trip LI trip function

Product description

The Siemens JXD63B400 is a 3-pole, 3-phase molded case circuit breaker from the Sentron Series, designed for robust industrial power distribution. It features a 400 Amp rating, a 600 Volt AC voltage rating, and a 35kA interrupting capacity at 480V. This breaker utilizes a non-interchangeable thermal magnetic trip unit for reliable overcurrent protection.

This circuit breaker is intended for use in panelboards, switchboards, and motor control centers. Its LI (Long-Time and Instantaneous) trip function ensures protection against both sustained overloads and sudden short circuits, safeguarding critical electrical equipment.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens JXD63B400. We are committed to providing high-quality industrial automation components and responsive service to support your operational requirements.

Technical specifications

Type	JXD
Poles	3
Ampere	400A
Volt	600V AC
Phase	3
AIC Rating	35kA@480V
Protection	Thermal Magnetic
Functions	LI (Long-Time and Instantaneous)

Common applications

Industrial power distribution

Panelboards

Switchboards

Motor control centers

Commercial electrical systems

Heavy machinery

Compatible systems

Siemens Sentron Panelboards (P4, P5, S4, S5) Switchboards Motor Control Centers

Also known as

Siemens JXD63B400 Sentron JXD63B400 400 Amp 3 Pole Breaker

Replaces / compatible with

The JXD63B400 is a Siemens Sentron series breaker that can serve as a direct replacement for other JXD frame models or older JD frame breakers within compatible Siemens panelboards and switchgear.

Technical note

Expert tip

This JD frame circuit breaker is designed for unit mounting and is HACR rated, making it suitable for applications with HVAC equipment.

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Frequently asked questions

What is the interrupt rating of the Siemens JXD63B400 at 600V?

The Siemens JXD63B400 has an interrupt rating of 25 kA at 600V AC. It also has a higher rating of 35 kA at 480V AC, providing versatility for different voltage systems.