Specifications

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WL Low Voltage Metal- WL low voltage metal-enclosed switchgear is manufactured
Enclosed Switchgear by SII and incorporates WL low voltage power circuit breakers.
WL low voltage switchgear is similar to Siemens switchboard
products, which can also employ WL circuit breakers. However,
WL low voltage switchgear conforms to IEEE and UL standards
that differ from NEMA and UL switchboard standards.
A WL switchgear assembly consists of one or more metal
enclosed vertical sections. The end sections are designed to
allow installation of additional sections. Each vertical section
consists of up to four individually enclosed breaker or auxiliary
compartments. WL switchgear has horizontal bus rated for 6000
amps maximum and vertical bus rated for 5000 amps maximum.
Siemens WL Arc Resistant In recent years, many customers have become more aware of
Low Voltage Switchgear the potential hazards to personnel posed by arc flashes. An
arc flash is a condition that occurs as a result of a high energy
arc fault where heat energy is suddenly and often explosively
produced. WL arc resistant low voltage switchgear is
designed, constructed, and performance tested to IEEE
C37.20.7-2007. This means that It provides an additional degree
of protection from the hazards associated with internal arc
faults.
WL arc resistant low voltage switchgear uses WL low voltage
power circuit breakers and has a maximum internal arcing short-
circuit current rating of 100 kA at 580V and 85 kA at 635V and a
maximum arcing duration of 500 msec.