Speedfax 2017

Medium-voltage Equipment
5 – 15 kV SIEBREAK Metal-Enclosed Load Interrupter Switchgear General/Specifications
SIEBREAK Metal-Enclosed Load Interrupter Switchgear
Standard
n Single, duplex, and selector switch
types
n Non-fused or fused
n Indoor type 1 enclosure
n Large 8” x 18” (203 mm x 457 mm)
viewing window
n Hinged, grounded metal barrier in
front of switch blades
n 11-gauge doors, covers, and barriers
n Silver-plated copper bus
n Provisions for key interlocking
n Mechanical door and switch interlock
n Upper and lower ventilation louvers
n Glass-polyester bus supports
n Non-corrosive nameplate
n Space heater with thermostat
n NEMA CC1 hole patterns for cable
termination.
n Meets or exceeds applicable
standards from ANSI, IEEE, CSA,
EEMAC, and NEMA.
Optional
n UL or C-UL Listing
n Current-limiting or explusion fuses
n Indoor type 2 drip-proof enclosure
n Indoor type 12 dust-resistant
enclosure
n Outdoor non-walk-in type 3R
enclosure
n Motor-operated mechanism
n Tin-plated copper bus.
n Auxiliary switches (2 NO-2 NC)
n Mimic bus
n Ground studs
n Screens and filters (indoor)
Modular configurations to mount:
n Surge arresters
n Instrument transformers
n Control power transformers
n Power meters
n Other auxiliary equipment.
Applications:
n Standalone bay
n Transformer primary
n Lineups.
14 SWITCHGEAR
SIEBREAK Specifications
Rated voltage Type 5 kV 15 kV
Rated frequency
50/60 Hz
Rated duration power frequency withstand voltage 19 kV 36 kV
Rated lightning impulse withstand voltage (BIL) 60 kV 95 kV
Fuse short circuit current rating Current Limiting 50 kA 50 kA
Expulsion 37.5 29.4
Switch rating Continuous Current 600 A and 1200 A
Interrupting rms
25 kA and 38 kA
Momentary rms
40 kA, 61 kA, 80 kA
Assembly rating Main bus continuous current 1200 A and 2000 A
Short-time 2 second
25kA and 38 kA
Siemens Industry, Inc. SPEEDFAX Product Catalog 14-21