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ABB A1B 125 TMF 100-1000 4p F F · 1SDA066743R11SDA066743R1↓ 53% off MRP
BrandABB
CategorySwitchgear
SpecificationC.BREAKER FORMULA A1B 125 FIXED FOUR-POLE WITH FRONT TERMINALS AND THERMOMAGNETIC RELEASE TMF R 100-1000 A
Brand SKU1SDA066743R1
AvailabilityIn stock · ships in 24h
Delivery8 to 15 business days after dispatch
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ABB A1B 125 TMF 100-1000 4p F F · 1SDA066743R1

Poles: 4
$80.28/pc-53%
MRP $170.10
Wholesale · 15+ units
$76.26 /pc
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$80.28 /pc
Delivery in 8 to 15 business days
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ABB A1B 125 TMF 100-1000 4p F F is a switchgear device from ABB. Key ratings: Poles 4P (FP), Rated current 100 A, Icu 18 kA, Release TMF, Rated voltage 550 V AC. It is built to IEC.

As published by ABB. Verify critical parameters against the datasheet before specifying.
ABB ABB A1B 125 TMF 100-1000 4p F F · 1SDA066743R1 · 1SDA066743R1
SeriesSACE FORMULA
Frame size125 A
Poles4P (FP)
Rated current100 A
Rated voltage550 V AC
Ultimate breaking capacity (Icu)18 kA
Service breaking capacity (Ics)5 kA
ReleaseTMF
Insulation voltage (Ui)690 V
Impulse withstand (Uimp)6 kV
Reference standardIEC
Net weight1 kg
Country of originItaly
Device typeMiniature circuit breaker (MCB)
Current rating1000 A
BrandABB
Brand SKU1SDA066743R1
ELINE36KMG9P6R
Sold asPer pc
Ratings as published by ABB (abb.com product data, datasheet 1SDC210032D0204; Product name; shop.in.abb.com listing for 1SDA066743R1, 23 Sep 2026). 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 ABB A1B 125 TMF 100-1000 4p F F · 1SDA066743R1 genuine and warranty-backed?

Yes. Every ABB 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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