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Lauritz Knudsen AU Standard RCBO · 2P (DP) · 20 A · 30 mA · Type Adi · C curve · AUF3D202003AUF3D202003↓ 35% off MRP
BrandLauritz Knudsen
CategorySwitchgear
SpecificationRCBO · 2P (DP) · 20 A · C curve · 10 kA · 30 mA · Type Adi (AC + pulsating DC + harmonics)
Brand SKUAUF3D202003
AvailabilityIn stock · ships in 24h
Delivery8 to 15 business days after dispatch
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Lauritz Knudsen AU Standard RCBO · 2P (DP) · 20 A · 30 mA · Type Adi · C curve · AUF3D202003

Sensitivity: 30mA
Current Rating: 20A
$94.66/pc-35%
MRP $144.63
Wholesale · 15+ units
$89.92 /pc
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$94.66 /pc
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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
Sensitivity
Price
RCBO · Type A
2P / 1P+N (single phase)
20 A
C
30 mA
$94.66 /pc
Viewing above ↑
RCBO
2P / 1P+N (single phase)
20 A
C
30 mA
$180.21 /pc
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Dispatched from Ghaziabad, India · fee by weight, shown at checkout
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Wholesale price at 15+ units: $89.92/pc on this product, applied automatically

Lauritz Knudsen AU Standard RCBO · 2P (DP) · 20 A · 30 mA · Type Adi · C curve is an RCBO from Lauritz Knudsen. It combines earth-leakage protection with overload and short-circuit protection for one circuit in a single device. Key ratings: Poles 2P (DP), Rated current 20 A, Trip curve C curve, Breaking capacity 10 kA, Sensitivity 30 mA, Type Adi (AC + pulsating DC + harmonics). It is built to IEC 61009-1, IS 12640-2, EN 61009-1.

  • Earth-leakage and overload protection in one device
  • Suitable for isolation
  • Wide range of site-mountable accessories
As published by Lauritz Knudsen. Verify critical parameters against the datasheet before specifying.
Lauritz Knudsen Lauritz Knudsen AU Standard RCBO · 2P (DP) · 20 A · 30 mA · Type Adi · C curve · AUF3D202003 · AUF3D202003
Device typeResidual current breaker with overload protection (RCBO)
SeriesAU
Poles2P (DP)
Rated current20 A
Trip curveC curve
Breaking capacity10 kA
Sensitivity (IΔn)30 mA
RCCB typeType Adi (AC + pulsating DC + harmonics)
Rated voltage240 V
Width2 modules
Reference standardIEC 61009-1, IS 12640-2, EN 61009-1
Current rating20 A
BrandLauritz Knudsen
Brand SKUAUF3D202003
ELINEP3KM4DJ6P
Sold asPer pc
Ratings as published by Lauritz Knudsen (Elume catalogue; Lauritz Knudsen smartshop; Lauritz Knudsen price list Aug 2026; Product name). Verify critical parameters against the datasheet before specifying.
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 AU Standard RCBO · 2P (DP) · 20 A · 30 mA · Type Adi · C curve · AUF3D202003 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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