Low Voltage Metal-Enclosed Switchgear


Siemens Type WL low voltage metal-enclosed switchgear is designed, constructed and tested to provide superior power distribution, power monitoring and control.  At the heart of the product is the World Class WL breaker.  The WL breaker has a proven performance track record of proven technology and quality. 


Siemens Type WL low voltage switchgear assembly consists of one or more metal-enclosed vertical sections. The end sections are designed to allow installation of future sections.

Each vertical section consists of up to four individually enclosed breakers or auxiliary compartments which are sized to provide uniform height.

Included in each assembly are various components such as circuit breakers, instrumentation and control equipment, transformers, relays, three-phase bus work, and all internal wiring, connectors, and other supporting equipment.

In accordance with ANSI C37.20.1, the maximum temperature for parts that are handled is 50 degrees Celsius.  The main bus maximum temperature rise is 65 degrees Celsius above 40 degrees Celsius ambient. The temperature rise of the air surrounding the cable connection points is limited to 45 degrees Celsius above 40 degrees Celsius ambient.

Equipment ratings/options are:

  • 635VAC Maximum  

  • 3 Phase 3 Wire  

  • 3 Phase 4 Wire  

  • 50/60 Hz  

  • 6000 amp maximum horizontal bus  

  • 6000 amp maximum vertical bus

  • NEMA 1 indoor  

  • NEMA 3R outdoor walk-in  

  • NEMA 3R outdoor non walk-in

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