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product brand name
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SENTRON
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product designation
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3KC transfer switching equipment
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design of the product
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manually operated
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display version for switch b indicator door-coupling rotary operating mechanism
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I ON- O OFF- II ON
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design of the actuating element
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Without handle
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design of handle
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without
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type of the driving mechanism
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Front operating mechanism
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type of the driving mechanism motor drive
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No
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General technical data
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number of poles
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3
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type of device
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fixed mounting
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size of switch disconnector
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5
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mechanical service life (operating cycles) for function sequence O-I-O typical
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6 000
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I2t value
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● with closed switch for combination switch + fuse at 500 V maximum
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25 960 000 A2·s
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● of the fuse at 415 V maximum permissible
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34 800 005 A2·s
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● of the fuse at 500 V maximum permissible
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34 800 005 A2·s
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● with closed switch for combination switch + fuse at 415 V maximum
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25 960 000 A2·s
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b of the switch operating mechanism
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at the left end
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overvoltage category
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IV
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degree of pollution
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3
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insulation voltage
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● rated value
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1 000 V
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Protection class
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protection class IP
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IP00
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protection class IP
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● with closed switch with cover or cable lug cover
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IP20
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● on the front
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IP00
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Dissipation
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power loss [W]
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● with conventional rated thermal current per device
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210 W
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Main circuit
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operating power
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● at AC-23 A at 400 V at 50/60 Hz rated value
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400 kW
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● at AC-23 A at 500 V rated value
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560 kW
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operational current rated value
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1 250 A
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Auxiliary circuit
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number of connected NC contacts for auxiliary contacts
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0
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number of connected NO contacts for auxiliary contacts
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0
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number of connected CO contacts for auxiliary contacts
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0
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number of CO contacts for auxiliary contacts
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0
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number of NC contacts for auxiliary contacts
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16
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number of NO contacts for auxiliary contacts
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16
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suitability for use main switch
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Yes
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suitability for use switch disconnector
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Yes
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suitability for use EMERGENCY OFF switch
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Yes
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suitability for use safety switch
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Yes
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suitability for use maintenance/repair switch
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Yes
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product feature interlock
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No
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product extension auxiliary switch
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Yes
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product extension optional motor drive
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No
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product extension optional voltage trigger
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No
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Short circuit
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short-circuit current making capacity (Icm) for switch disconnector
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● at 415 V AC without fuse b according to IEC 60947-6-1 rated value minimum
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105 kA
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● at 690 V AC without fuse b according to IEC 60947-3 rated value minimum
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105 kA
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conditional short-circuit current with line-side fuse protection
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● at 415 V by gG fuse according to IEC 60947-6-1 rated value
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80 kA
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● at 415 V by gG fuse rated value
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80 kA
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● at 500 V by gG fuse according to IEC 60947-3 rated value
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80 kA
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Connections
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type of connectable conductor cross-sections for aluminum conductor stranded with lug
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1x (120 ... 300 mm2), 2x (95 ... 300 mm2)
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type of connectable conductor cross-sections
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● with combination of Al conductor+switch
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680 A / 2x 300 mm2
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● for copper busbar
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2x (60 x10 mm2)
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type of connectable conductor cross-sections for copper conductor
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● stranded with lug according to DIN 46234
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1x (120 ... 240 mm2), 2x (95 ... 240 mm2)
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● stranded with lug according to DIN 46235
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1x (120 ... 240 mm2), 2x (95 ... 240 mm2)
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type of electrical connection
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● for main current circuit
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busbar connection
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