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Lauritz Knudsen C-Line Changeover Switch · 4P (FP) · 250 A · 415 V AC · CO32500OSOOCO32500OSOO↓ 20% off MRP
BrandLauritz Knudsen
CategorySwitchgear
SpecificationChangeover Switch · 4P (FP) · 250 A · 415 V AC · Sheet-steel enclosure
Brand SKUCO32500OSOO
AvailabilityIn stock · ships in 24h
Delivery8 to 15 business days after dispatch
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Lauritz Knudsen C-Line Changeover Switch · 4P (FP) · 250 A · 415 V AC · CO32500OSOO

Current Rating: 250A
$502.19/pc-20%
MRP $624.19
Wholesale · 15+ units
$477.07 /pc
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$502.19 /pc
Delivery in 8 to 15 business days
Same key specifications, different brands - matched on spec, never on looks. Tap a product to open it.Full comparison page →
Product
Type
Poles
Rating
Curve
Breaking capacity
Price
CHANGEOVER
FP (4 pole)
250 A
n/a
-
$502.19 /pc
Viewing above ↑
CHANGEOVER
FP (4 pole)
250 A
n/a
-
$352.49 /pc
CHANGEOVER
FP (4 pole)
250 A
n/a
-
$677.75 /pc
CHANGEOVER
FP (4 pole)
250 A
n/a
-
$885.42 /pc
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Dispatched from Ghaziabad, India · fee by weight, shown at checkout
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Wholesale built in
Wholesale price at 15+ units: $477.07/pc on this product, applied automatically

Lauritz Knudsen C-Line Changeover Switch · 4P (FP) · 250 A · 415 V AC is a changeover switch from Lauritz Knudsen. Key ratings: Poles 4P (FP), Rated current 250 A, Rated voltage 415 V AC, Mounting Sheet-steel enclosure. It is built to IS/IEC 60947-3, utilisation category AC-23A.

  • Mechanical interlock between the two supplies
  • Conforms to IEC 60947-3 and IS/IEC 60947-3
As published by Lauritz Knudsen. Verify critical parameters against the datasheet before specifying.
Lauritz Knudsen Lauritz Knudsen C-Line Changeover Switch · 4P (FP) · 250 A · 415 V AC · CO32500OSOO · CO32500OSOO
Device typeChangeover switch
SeriesC-Line
FrameCO3
Poles4P (FP)
Rated current250 A
Rated voltage415 V AC
MountingSheet-steel enclosure
Reference standardIS/IEC 60947-3, utilisation category AC-23A
Current rating250 A
BrandLauritz Knudsen
Brand SKUCO32500OSOO
ELINE44MRK464D
Sold asPer pc
Ratings as published by Lauritz Knudsen (Lauritz Knudsen price list Aug 2026; Elume catalogue; Lauritz Knudsen smartshop). Verify critical parameters against the datasheet before specifying.
Other Lauritz Knudsen ranges and models in this category, closest in price to this one.
Read: Contactor Sizing for 400 V and 415 V Motors: kW to Amps, AC-3 Ratings and Overload Relays →
What size contactor do I need for a 7.5 kW motor?
A 7.5 kW three-phase motor at 400 V draws about 14.5 A, so a contactor rated at least 16 to 18 A at AC-3 is the usual choice, with an overload relay set to the nameplate current.
What is the difference between AC-1 and AC-3?
AC-1 is the rating for resistive loads such as heaters; AC-3 is the rating for switching squirrel-cage motors in normal duty. Motors are always sized on the AC-3 figure, which is lower.
How many amps per kW for a three-phase motor?
At 400 V, roughly 2 A per kW for small motors, falling towards about 1.8 A per kW above 30 kW, because larger motors run at a better power factor and efficiency. Use the nameplate for the exact figure.
Is Lauritz Knudsen C-Line Changeover Switch · 4P (FP) · 250 A · 415 V AC · CO32500OSOO genuine and warranty-backed?

Yes. Every Lauritz Knudsen product on Elume is 100% genuine, sourced through authorised channels, and carries the manufacturer's standard warranty.

Do you deliver outside India?

Yes, to every country except Pakistan, North Korea, Iran, Syria, Cuba, Russia, Belarus and Afghanistan, and the Crimea, Sevastopol, Donetsk, Luhansk, Zaporizhzhia and Kherson regions. The delivery fee depends on weight and destination and is shown at checkout; international orders are paid by card in US dollars. The full rules are on our shipping page.

Is there a wholesale or bulk rate?

Yes. Orders of 15 or more pcs get a wholesale price below the listed Elume price, applied automatically and shown on every product page.

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