Siemens

Soft starter Siemens SIRIUS 3RW4028-1BB14

extended guarantee
Item number: 101995
EAN: 4011209691780
  • Soft starter
  • Size S0
  • 38 A
  • 18.5 kW/400 V
  • 200-480 V AC
  • Control voltage: 110-230 V AC/DC
  • Screw terminals
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£398.43
plus VAT plus dispatch
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Corresponding accessory groups
DIN rail PHOENIX 1207640 - NS 35/7,5 PERF 755MM
DIN rail, Material: Steel galvanized and passivated with a thick layer, Perforated, Height: 7.5 mm, Width: 35 mm, Length: 755 mm
Item number: 100853
£1.80
plus VAT plus dispatch
in stock
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DIN rail PHOENIX 1207653 - NS 35/7,5 PERF 955MM
DIN rail, Material: Steel galvanized and passivated with a thick layer, Perforated, Height: 7.5 mm, Width: 35 mm, Length: 955 mm
Item number: 100854
£2.34
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in stock
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DIN rail PHOENIX 1207679 - NS 35/15 PERF 755MM
DIN rail, Material: Steel galvanized and passivated with a thick layer, Perforated, Height: 15 mm, Width: 35 mm, Length: 755 mm
Item number: 100851
£3.06
plus VAT plus dispatch
in stock
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DIN rail PHOENIX 1207682 - NS 35/15 PERF 955MM
DIN rail, Material: Steel galvanized and passivated with a thick layer, Perforated, Height: 15 mm, Width: 35 mm, Length: 955 mm
Item number: 100852
£3.87
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in stock
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Din rails close
Current monitoring relay Siemens SIRIUS 3RR2142-1AW30
Monitoring relay, Mountable on 3RT2 contactor, Size S0, Analogue adjustable, Apparent current monitoring 4-40.0 A, 50-60 Hz, 2-phase, 24-240 V AC/DC, 1 x changeover contact, Screw connection
Item number: 101486
£81.90
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in stock
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Current monitoring relay Siemens SIRIUS 3RR2242-1FW30
Monitoring relay, Mountable on 3RT2 contactor, Size S0, Digital adjustable, Apparent/active current monitoring 4-40 A, 20-400 Hz, 3-phase, 24-240 V AC/DC, 1 x changeover contact, 1 x semiconductor output for alarm and warning, Screw connection
Item number: 101489
£149.13
plus VAT plus dispatch
in stock
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SIRIUS S0 Monitoring relays close

Technical details
General data

Motor starter
Soft starter
3
1 x NO
S0

Electrical data

480 V
18.5 kW
38.0 A
38 A
110-230 V AC/DC

Mechanical data

45 mm
125 mm
155 mm
Screw-type terminals

Ambient conditions

-20 °C
+60 °C
IP20

Further information

CCC, CSA, EAC, UL , CE

Classification

27-02-41-01
27-37-09-07
EC000640
85365080

Product description
Soft starter Siemens SIRIUS 3RW4028-1BB14
The SIRIUS soft starter 3RW4028-1BB14 from Siemens reduces the motor voltage through variable phase angle control and increases it in ramp-like mode from an adjustable start-up voltage up to the line voltage. This makes the soft starter 3RW4028-1BB14 ideal for the start-up of motors up to 18.5 kW at a control voltage of 110-230 V AC/DC. The soft starter also provides integrated supplementary functions like settable current limiting, motor overload and intrinsic device protection. The main fields of application of the soft starter 3RW4028-1BB14 are pumps, conveyors, agitators and milling machines.
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