SION Vakuum Circuit-Breakers 3AE5 and 3AE1 from
7.2 kV to 24 kV – The Modulars
SION vacuum circuit-breakers control all switching duties in
medium-voltage distribution systems and are suitable for installation in all customary, new, air-insulated medium-voltage
switchgear types as well as for retrofitting existing switchgear.
They are applicable for operation of e.g. overhead lines, cables,
transformers, capacitors and motors. The comprehensive installation accessories enable easy integration in the switchgear
panel, and form – maximally equipped as a withdrawable
module with earthing switch – almost the complete circuitbreaker compartment inside the switchgear.
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Description
General
The circuit-breaker mounted on a withdrawable part can be
supplied both with and without contact arms and contacts.
SION vacuum circuit-breaker for fixed mounting SION vacuum circuit-breaker on withdrawable part
Our comprehensive circuit-breaker product range offers a wide
selection for pole-center distances and widths across flats as
well as various equipment options for voltage levels from 7.2 kV
to 24 kV. The withdrawable part, contact arms, contacts and
bushings enable easy integration in all customary mediumvoltage switchgear types. Identical dimensions and connection
dimensions across several voltage levels reduce planning costs
and the diversity of panel versions. High reliability and availability are just as much a matter of course as 10,000 maintenance-free operating cycle
Standards
The circuit-breakers conform to the following standards:
• IEC 62271-1
• IEC 62271-100
All circuit-breakers fulfil the endurance classes C2, E2, M2
and S1 according to IEC 62271-100.
The withdrawable modules have been tested according to
• IEC 62271-200, 62271-1 and 62271-102 regarding
– Dielectric strength
– Temperature rise
– Switching capacity.
Maintenance-free design
The circuit-breakers are maintenance-free:
• Under normal ambient conditions according to IEC 62271-1
• Up to 10,000 operating cycles,
– no regreasing
– no readjusting
The ratings are independent – within their tolerances –
of the switching rate or standing times without switching
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