LAURITZ KNUDSEN / ELECTRICAL & AUTOMATION
Digital soft starters
Electronic motor starting with configurable control and optional modules.

RANGE AT A GLANCE
Choose the right configuration.
Share supply voltage, load or motor details, control requirements, enclosure conditions and required accessories for model selection.
Digital soft starters
Optional modules and cards
MANUFACTURER REFERENCE / August 2026
Details, down to
the catalog number.
Browse the supplied specification pages. Published MRP is a dated manufacturer reference; request a current Nova quote and confirm the tax basis and pack size.
ESP Lauritz Knudsen Price List (1).pdf ↗ · PDF pages 127–129
3 catalog pages
PDF page 127 Digital Soft Starters [8504]
Extracted reference text; use the original PDF to check column alignment, variants and price units.
Digital Soft Starters [8504]
Soft Starters M.R.P.
Bypass
Range: 18A to 200A Description Cat. No. (`)
Contactor
Per Unit
xS1000,18A,M:200-440VAC,C:110/230-440VAC XS1000-0018-B44111 *
xS1000,34A,M:200-440VAC,C:110/230-440VAC XS1000-0034-B44111 *
xS1000,42A,M:200-440VAC,C:110/230-440VAC XS1000-0042-B44111 *
xS1000,48A,M:200-440VAC,C:110/230-440VAC XS1000-0048-B44111 *
xS1000,60A,M:200-440VAC,C:110/230-440VAC XS1000-0060-B44111 *
xS1000 Soft Starters : For Standard Applications xS1000,75A,M:200-440VAC,C:110/230-440VAC XS1000-0075-B44111 * Built - In
› Inbuilt Bypass Contactor xS1000,85A,M:200-440VAC,C:110/230-440VAC XS1000-0085-B44111 *
› Soft Start / Soft Stop xS1000,100A,M:200-440VAC,C110/230-440VAC
› Compact in size
XS1000-0100-B44111 *
xS1000,140A,M:200-440VAC,C110/230-440VAC XS1000-0140-B44111 *
› Truly plug & play
› Communication options available xS1000,170A,M:200-440VAC,C110/230-440VAC XS1000-0170-B44111 *
xS1000,200A,M:200-440VAC,C110/230-440VAC XS1000-0200-B44111 *
Soft Starters M.R.P.
Bypass
Range: 18A to 200A Description Cat. No. (`)
Contactor
Per Unit
xS2000,18A,M:200-440VAC,C:110/230-440VAC XS2000-0018-B44111 *
xS2000,34A,M:200-440VAC,C:110/230-440VAC XS2000-0034-B44111 *
xS2000,42A,M:200-440VAC,C:110/230-440VAC XS2000-0042-B44111 *
xS2000,48A,M:200-440VAC,C:110/230-440VAC XS2000-0048-B44111 *
xS2000,60A,M:200-440VAC,C:110/230-440VAC XS2000-0060-B44111 *
xS2000,75A,M:200-440VAC,C:110/230-440VAC XS2000-0075-B44111 *
xS2000 Soft Starters : For standard applications
xS2000,85A,M:200-440VAC,C:110/230-440VAC XS2000-0085-B44111 * Built - In
› Inbuilt Bypass Contactor
› Soft start / Soft stop / Adjustable current limit xS2000,100A,M:200-440VAC,C110/230-440VAC XS2000-0100-B44111 *
› Essential motor protections against xS2000,140A,M:200-440VAC,C110/230-440VAC XS2000-0140-B44111 *
» Overload xS2000,170A,M:200-440VAC,C110/230-440VAC XS2000-0170-B44111 *
» Single phasing xS2000,200A,M:200-440VAC,C110/230-440VAC XS2000-0200-B44111 *
» Instantaneous over current
» Phase sequence reversal
» Abnormality in supply
» Unbalanced current Note:
› Thermistor protection through PTC * For prices please contact nearest branch office
› Excess start time setting The above xS1000 & xS2000 ratings are based on 400% starting current, 10 starts per hour up to 60A & 6
› Communication options available starts per hour for 75A & above, 6 seconds starting time and ambient temperature of 40°C.
› PC Interface as optional For proper sizing of soft starter based on the application parameters please use Winstart Software.
Ordering Information for xS1000 & xS2000 Series Soft Starter
xS nnnn - 1234 - B V C D F F
We recommend the use of :
1. Line Contactor : This will isolate and protect the soft starter SCR's from
any voltage transient while it's not in operation.
xS Soft starters
2. Bypass Contactor (For models without built-in bypass) : This will
Soft starter Name
bypass and protect the soft starter SCR's while in running state from
nnnn 1000 xS1000
Current and Voltage transient's.
2000 xS2000
Current Rating 3. Semiconductor fuses : This will protect the starter SCR's during
1234
1234 Nominal Current Rating starting and stopping states from current transient's and excess I²T.
Bypass Type
B Note:
B Internal Bypass
Mains Voltage * For prices please contact nearest branch office
V 4 3Ph, 200-440VAC Soft Starters are covered under HSN code 8504 40 90 and are charged
at 18% GST.
5 3Ph, 200-575VAC
Control Voltage
C 1 24V AC/DC
4 110/230-440V AC
Graphical Display
D
1 No Graphical Display
Future Use
F
1 Future Use
Future Use
F
1 Future Use
Lauritz Knudsen, 15.08.2026 120PDF page 128 Digital Soft Starters [8504]
Extracted reference text; use the original PDF to check column alignment, variants and price units.
Digital Soft Starters [8504]
Soft Starters M.R.P.
Bypass
Description Cat. No. (`)
Range: 24A to 580A Contactor
Per Unit
xS3000,24A,M:200-525VAC,C:110/220VAC XS3000-0024-B52211 *
xS3000,42A,M:200-525VAC,C:110/220VAC XS3000-0042-B52211 *
xS3000,52A,M:200-525VAC,C:110/220VAC XS3000-0052-B52211 *
xS3000,64A,M:200-525VAC,C:110/220VAC XS3000-0064-B52211 *
xS3000,69A,M:200-525VAC,C:110/220VAC XS3000-0069-B52211 *
xS3000,105A,M:200-525VAC,C:110/220VAC XS3000-0105-B52211 *
xS3000,115A,M:200-525VAC,C:110/220VAC XS3000-0115-B52211 *
xS3000,135A,M:200-525VAC,C:110/220VAC XS3000-0135-B52211 *
› Built in bypass contactor xS3000,184A,M:200-525VAC,C:110/220VAC XS3000-0184-B52211 * Built - In
› Compact & Flexible Design
› Screw-less design for easy and fast servicing
xS3000,200A,M:200-525VAC,C:110/220VAC XS3000-0200-B52211 *
› USB port for easy and fast commissioning and xS3000,229A,M:200-525VAC,C:110/220VAC XS3000-0229-B52211 *
data extraction xS3000,250A,M:200-525VAC,C:110/220VAC XS3000-0250-B52211 *
› Full graphical display with multi-languages xS3000,352A,M:200-525VAC,C:110/220VAC XS3000-0352-B52211 *
support xS3000,397A,M:200-525VAC,C:110/220VAC XS3000-0397-B52211 *
› Built-in Simulation Mode
› 384 event logs xS3000,410A,M:200-525VAC,C:110/220VAC XS3000-0410-B52211 *
› Communication options available xS3000,550A,M:200-525VAC,C:110/220VAC XS3000-0550-B52211 *
› Fire Mode Function xS3000,580A,M:200-525VAC,C:110/220VAC XS3000-0580-B52211 *
› Starts per hour count
Soft Starters Description
M.R.P.
Bypass
Cat. No. (`)
Range: 24A to 1250A Contactor
Per Unit
xS4000,24A,M:200-525VAC,C:110/220VAC XS4000-0024-B52211 *
xS4000,42A,M:200-525VAC,C:110/220VAC XS4000-0042-B52211 *
xS4000,52A,M:200-525VAC,C:110/220VAC XS4000-0052-B52211 *
xS4000,64A,M:200-525VAC,C:110/220VAC XS4000-0064-B52211 *
xS4000,69A,M:200-525VAC,C:110/220VAC XS4000-0069-B52211 *
xS4000,105A,M:200-525VAC,C:110/220VAC XS4000-0105-B52211 *
xS4000,115A,M:200-525VAC,C:110/220VAC XS4000-0115-B52211 *
xS4000,135A,M:200-525VAC,C:110/220VAC XS4000-0135-B52211 *
xS4000,184A,M:200-525VAC,C:110/220VAC XS4000-0184-B52211 *
› Built in bypass contactor
› Compact & Flexible Design xS4000,200A,M:200-525VAC,C:110/220VAC XS4000-0200-B52211 *
› Screw-less design for easy and fast servicing xS4000,229A,M:200-525VAC,C:110/220VAC XS4000-0229-B52211 *
Built - In
› USB port for easy and fast commissioning and xS4000,250A,M:200-525VAC,C:110/220VAC XS4000-0250-B52211 *
data extraction XS4000-0352-B52211
xS4000,352A,M:200-525VAC,C:110/220VAC *
› Full graphical display with multi-languages XS4000-0397-B52211
support
xS4000,397A,M:200-525VAC,C:110/220VAC *
› Real time graphs of motor operating xS4000,410A,M:200-525VAC,C:110/220VAC XS4000-0410-B52211 *
performance xS4000,550A,M:200-525VAC,C:110/220VAC XS4000-0550-B52211 *
› 384 event logs with time stamping xS4000,580A,M:200-525VAC,C:110/220VAC XS4000-0580-B52211 *
› Advanced protection system xS4000,835A,M:200-525VAC,C:110/220VAC XS4000-0835-B52211 *
› Communication options available xS4000,940A,M:200-525VAC,C:110/220VAC XS4000-0940-B52211 *
› Smart card for level controlled pump activation
and pump protection xS4000,1070A,M:200-525VAC,C:110/220VAC XS4000-1070-B52211 *
› Under Voltage / Over Voltage protection xS4000,1230A,M:200-525VAC,C:110/220VAC XS4000-1230-B52211 *
available xS4000,1250A,M:200-525VAC,C:110/220VAC XS4000-1250-B52211 *
› Fire Mode Function xS4000,735A,M:200-525VAC,C:110/220VAC XS4000-0735-C52211 * External bypass
› Starts per hour count xS4000,830A,M:200-525VAC,C:110/220VAC XS4000-0830-C52211 * contactor
(AC1 rating)
› Power through function available
xS4000,1025A,M:200-525VAC,C:110/220VAC XS4000-1025-C52211 * All protections
› Scheduling based on RTC remain active
xS4000,1170A,M:200-525VAC,C:110/220VAC XS4000-1170-C52211 * during bypass
operation
xS4000,1220A,M:200-525VAC,C:110/220VAC XS4000-1220-C52211 *
Note:
xS nnnn - 1234 - B V C D F F * For prices please contact nearest branch office
Prices for 1000V and External Bypass soft starter below 735A available on
xS Soft starters Control Voltage request Soft Starters are covered under HSN code 8504 40 90 and are charged at
Soft starter Name C 1 24V AC/DC 18% GST.
nnnn 3000 xS3000 2 110-120/220-240V AC
4000 xS4000 Graphical Display We recommend the use of :
D
Current Rating 2 Fixed Graphical Display
1234 1. Line Contactor : This will isolate and protect the soft starter SCR's from any
1234 Nominal Current Rating Future Use
F voltage transient while it's not in operation.
Bypass Type 1 Future Use
B B Internal Bypass
2. Semiconductor fuses : This will protect the starter SCR's during starting and
Future Use
C Continuous / External Bypass
F stopping states from current transient's and excess I2T.
1 Future Use
Mains Voltage 3. Bypass Contactor (For models without built-in bypass) : This will bypass and
5 3Ph, 200-525VAC protect the soft starter SCR's while in running state from Current and Voltage
V transient's.
6 3Ph, 380-600VAC
7 3Ph, 380-690VAC
Lauritz Knudsen, 15.08.2026 121PDF page 129 Digital Soft Starters [8504]
Extracted reference text; use the original PDF to check column alignment, variants and price units.
Digital Soft Starters [8504]
Optional Modules/Cards for xS Series
M.R.P.
Description Cat. No. (`)
Per Unit
xS1000 & xS2000 Modbus RTU Card XSCI-RTU-121 *
xS1000 & xS2000 Modbus TCP Card XSCI-TCP-123 *
xS1000 & xS2000 Profibus Card XSCI-PDP-121 *
xS1000 & xS2000 Profinet Card XSCI-PFN-122 *
xS1000 & xS2000 Ethernet Card XSCI-ETH-122 *
xS1000 & xS2000 DeviceNet Card XSCI-DEN-121 *
xS1000 & xS2000 USB Interface Card XSCI-USB-121 *
xS1000 & xS2000 Operator interface Card XSOP-DOC-100 *
xS1000 & xS2000 Digital Operator Kit XSOP-DOK-100 *
xS3000 and xS4000 Modbus RTU Card XSCI-RTU-341 *
xS3000 and xS4000 Modbus RTU + GF Card XSCI-RTU-342 *
xS3000 and xS4000 Modbus TCP + GF Card XSCI-TCP-343 *
xS3000 and xS4000 Profibus Card XSCI-PDP-341 *
xS3000 and xS4000 Profinet + GF Card XSCI-PFN-343 *
xS3000 and xS4000 Ethernet + GF Card XSCI-ETH-343 *
xS3000 and xS4000 DeviceNet Card XSCI-DEN-341 *
xS3000 and xS4000 Operator & Cable XSOP-DOP-200 *
xS3000 and xS4000 Operator Interface Card XSOP-DOC-200 *
xS3000 and xS4000 Digital Operator Kit XSOP-DOK-200 *
xS3000 and xS4000 Pumping Smart Card XSSC-PSC-341 *
Note:
* For prices please contact nearest branch office
Soft Starters are covered under HSN code 8504 40 90 and are charged
at 18% GST.
Lauritz Knudsen, 15.08.2026 122No matching text found. Try a shorter model code or check the original PDF, including illustrated pages.
BEFORE YOU SPECIFY
Make an informed choice.
LET’S GET THE SPECIFICATION RIGHT
From your shortlist
to a clear quote.
Share the catalog number, rating and quantity. We’ll confirm the current price, availability and lead time.