> SIEMENS>CONTROL AND CONTACTORS>Contactors for switching motors> 3RA1445-8XB20-1AB0 SIEMENS CONTACTOR COMBINATION, STAR-DELTA (FACTORY-ASSEMBLED) WITH FRONT SIDE TIMING REL..
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3RA1445-8XB20-1AB0 SIEMENS CONTACTOR COMBINATION, STAR-DELTA (FACTORY-ASSEMBLED) WITH FRONT SIDE TIMING REL.. View larger
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3RA1445-8XB20-1AB0 SIEMENS CONTACTOR COMBINATION, STAR-DELTA (FACTORY-ASSEMBLED) WITH FRONT SIDE TIMING REL..

3RA1445-8XB20-1AB0

SIEMENS

Contactor assembly Star-delta (wye-delta) (pre-assembled) with timing relay on the front AC-3, 75 kW/400 V, 3-pole Size S3, S3, S3 Electrically interlocked Screw terminal 1 NO, 24 V AC, 50 Hz !!! Phased-out product !!! Successor is SIRIUS 3RA2

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CONTROL AND CONTACTORS > Contactors for switching motors

* Brand new product in its original packaging covered by the warranties and certifications provided by SIEMENS

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General technical data:
product brand nameSIRIUS
Product designationcontactor assembly
Product functionwye-delta-contactor
Size of contactorS3, S3, S2
Protection class IP on the frontIP20
Degree of pollution3
Insulation voltage with degree of pollution 3 rated valueV690
Installation altitude at height above sea level maximumm2 000
Ambient temperature
● during operation°C-25 ... +60
● during storage°C-55 ... +80
● during transport°C-55 ... +80
Equipment marking acc. to DIN 40719 extended according to IEC 204-2 acc. to IEC 750K
Equipment marking acc. to DIN EN 61346-2Q
Mechanical service life (switching cycles)
● of the main contacts typical10 000 000
● of auxiliary contacts typical10 000 000
● of the contactor with added auxiliary switch block typical10 000 000
Main circuit:
Number of poles for main current circuit3
Number of NC contacts for main contacts0
Operating voltage at AC-3 rated value maximumV690
Operating current at AC-3 at 400 V rated valueA150
Operating power at AC-3
● at 400 V rated valuekW75
● at 500 V rated valuekW103
● at 690 V rated valuekW110
Control circuit/ Control:
Control version of the switch operating mechanismconventional
Design of the surge suppressorwithout
Type of voltage of the control supply voltageAC
Control supply voltage frequency
● 1 rated valueHz50
Control supply voltage 1
● at AC
— at 50 Hz rated valueV24
Operating range factor control supply voltage rated value of magnet coil
● at AC
— at 50 Hz0.8 ... 1.1
— at 60 Hz0.85 ... 1.1
● at DC0.8 ... 1.1
Auxiliary circuit:
Product extension Auxiliary switchYes
Number of NC contacts for auxiliary contacts
● lagging switching0
Number of NO contacts for auxiliary contacts
● leading contact0
Short-circuit:
Design of the fuse link
● for short-circuit protection of the auxiliary switch requiredfuse gL/gG: 10 A
● for short-circuit protection of the main circuit
— with type of coordination 1 requiredfuse gL/gG: 250 A
— with type of assignment 2 requiredfuse gL/gG: 160 A
Installation/ mounting/ dimensions:
Mounting positionwith vertical mounting surface +/-180° rotatable, with vertical mounting surface +/- 30° tiltable to the front and back
Mounting typescrew fixing
Widthmm218
Heightmm180
Depthmm194
Required spacing
● with side-by-side mounting at the sidemm0
● for grounded parts at the sidemm0
● for live parts
— at the sidemm0
Connections/ Terminals:
Type of electrical connection for main current circuitscrew-type terminals
Certificates/ approvals:
Certificate of suitabilityCE / UL / CCC / GL / LRS / BV / DNV / RMRS / RINA / PRS / ABS
General Product ApprovalDeclaration of ConformityShipping Approval
other
UmweltbestätigungBestätigungen
Safety related data:
Contact reliability of auxiliary contacts1 faulty switching per 100 million (17 V, 1 mA)

Datasheet - PDF

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Title: Size: Type:
PDF CATALOG SIEMENS SIRIUS INDUSTRIAL CONTROLS EN.pdf 279 Mbytes
3RA1445-8XB20-1AB0 SIEMENS CONTACTOR COMBINATION, STAR-DELTA (FACTORY-ASSEMBLED) WITH FRONT SIDE TIMING R 84 Kbytes 3RA1445-8XB20-1AB0 SIEMENS CONTACTOR COMBINATION, STAR-DELTA (FACTORY-ASSEMBLED) WITH FRONT SIDE TIMING R

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