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Schneider Electric A9F04740 — Miniature Circuit Breakers (MCB)

Schneider Electric A9F04740 Acti9 iC60N MCB, 40 A, 3P+N, C-C

MPNA9F04740
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Schneider Electric Acti9 iC60N, miniature circuit-breaker, 40 A, 3P+N, C-curve, 36 kA Icu at 12–133 V AC, DIN-rail mount.

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MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

A9F04740 — Identification
ParameterValue
Product nameActi9 iC60
Product rangeActi9
Product/component typeMiniature circuit-breaker
Device applicationDistribution

Ratings

A9F04740 — Ratings
ParameterValue
Rated current (In)40 A
Poles configuration3P + N
Number of protected poles3
Breaking capacity36 kA Icu at 12...133 V AC 50/60 Hz conforming to EN/IEC 60947-2 20 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2 10 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 6 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 6000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1
Rated service breaking capacity (Ics)27 kA 75 % conforming to EN/IEC 60947-2 - 12...133 V AC 50/60 Hz 15 kA 75 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 7.5 kA 75 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 4.5 kA 75 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz
Rated insulation voltage (Ui)500 V AC 50/60 Hz conforming to EN/IEC 60947-2
Rated impulse withstand voltage (Uimp)6 kV conforming to EN/IEC 60947-2
Network type (AC/DC)AC DC
Network frequency50/60 Hz
Utilisation categoryCategory A conforming to EN/IEC 60947-2
Overvoltage categoryIV

Protection

A9F04740 — Protection
ParameterValue
Curve codeC
Trip unit technologyThermal-magnetic
Magnetic tripping limit8 x In +/- 20 %
Earth-leakage protectionSeparate block
Suitability for isolationYes conforming to EN/IEC 60898-1 Yes conforming to EN/IEC 60947-2
Limitation class3 conforming to EN/IEC 60898-1
Electrical durability (cycles)10000 cycles
Mechanical durability (cycles)20000 cycles

Mechanical

A9F04740 — Mechanical
ParameterValue
Mounting supportDIN rail
Control typeToggle
Terminal connection typeDouble terminal (top or bottom) 1...35 mm² rigid Double terminal (top or bottom) 1...25 mm² flexible
Terminal tightening torque3.5 N.m top or bottom
Wire stripping length14 mm for top or bottom connection
Contact position indicatorYes
Local signalling/indicationTrip indicator
Width72 mm
Height91 mm
Depth78.5 mm
Number of 9 mm pitches8

Environmental

A9F04740 — Environmental
ParameterValue
Operating ambient temperature-35...70 °C
Storage ambient temperature-40...85 °C
IP degree of protectionIP20 conforming to IEC 60529
Pollution degree3 conforming to EN/IEC 60947-2
Relative humidity95 % at 55 °C
Tropicalisation class2 conforming to IEC 60068-1

Approvals

A9F04740 — Approvals
ParameterValue
StandardsEN/IEC 60947-2 EN/IEC 60898-1

Product details

The Schneider Electric A9F04740 is an Acti9 iC60N miniature circuit-breaker rated 40 A, 3P+N, with a C-curve magnetic trip at 8 x In ±20 %. The 36 kA Icu at low voltage (12–133 V AC) gives serious fault-current headroom; at 380–415 V AC it still interrupts 10 kA Icu, and the IEC 60898-1 Icn is 6000 A at 400 V AC. That dual-rating (60947-2 for industrial, 60898-1 for domestic/commercial) means it's accepted in both worlds — a panel builder can spec it for a factory distribution board or a commercial riser.

That's 8 modules of 9 mm pitch, so it fills eight positions on the rail. Double terminals top and bottom accept up to 35 mm² rigid or 25 mm² flexible; strip 14 mm and torque to 3.5 N.m. IP20 finger-safe front, pollution degree 3 — fine for a clean panel, but keep it behind a gland plate if the enclosure sees dust or moisture.

Frequently asked questions

How do I get current pricing and availability for A9F04740?

Submit an RFQ through this listing; we source it to order and confirm availability and pricing at quote time.

What is the closest alternative to A9F04740 in the Acti9 family?

The iC60H and iC60L variants share the same 3P+N footprint and 40 A rating but offer higher breaking capacities — iC60H for 50 kA Icu, iC60L for 70 kA Icu at 220–240 V AC. Both are drop-in replacements if your fault-current requirement exceeds the standard iC60N's 20 kA at that voltage.

What is A9F04740's listed depth?

The depth is 78.5 mm, which fits standard DIN-rail enclosures with a 100 mm or deeper backbox.

What is A9F04740's range?

It belongs to the Acti9 range from Schneider Electric, specifically the iC60N series of miniature circuit-breakers.

What compliance documentation does Schneider Electric provide for A9F04740?

The MCB is certified to EN/IEC 60947-2 and EN/IEC 60898-1, with tropicalisation class 2 per IEC 60068-1. It carries a suitability-for-isolation marking under both standards. For RoHS/REACH declarations, refer to the manufacturer's compliance documentation available on request.

MPN
A9F04740