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Siemens JXD63B350 3-Pole 350A 600V Molded Case Circuit Breaker

Siemens JXD63B350 3-pole, 350A, 600V molded case circuit breaker.

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ManufacturerSiemens

Part numberJXD63B350

Type JXD

Poles 3

Ampere 350A

Volt 600V AC

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Veteran-owned

CAGE: 9NK75

3-Pole configuration 350 Amp rating 600 Volt AC 35kA interrupting capacity Thermal Magnetic trip LI trip function

Product description

The Siemens JXD63B350 is a 3-pole, 3-phase molded case circuit breaker from the Sentron Series, built for demanding industrial applications. It features a 350 Amp rating, a 600 Volt AC voltage rating, and a 35kA interrupting capacity at 480V. This breaker is equipped with a thermal magnetic trip unit for reliable overcurrent protection.

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

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens JXD63B350. We provide quality industrial automation components and dependable service to ensure your operations run smoothly.

Technical specifications

Type	JXD
Poles	3
Ampere	350A
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

Electrical safety

Manufacturing equipment

Compatible systems

Siemens Sentron Panelboards Switchboards Motor Control Centers

Also known as

Siemens JXD63B350 Sentron JXD63B350 350 Amp 3 Pole Breaker

Replaces / compatible with

As part of the Siemens Sentron series, the JXD63B350 is a proven component for existing electrical infrastructure. It can serve as a direct replacement for other JXD frame breakers with similar ratings.

Technical note

Expert tip

This JD frame breaker is suitable for unit mounting and features a non-interchangeable trip unit for consistent protection levels.

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Frequently asked questions

What is the temperature rating and operating range for the Siemens JXD63B350 circuit breaker?

The Siemens JXD63B350 circuit breaker has a standard temperature rating of 40 degrees C and an operating temperature range of -25°C to 70°C (-13°F to 158°F).