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Schneider Electric A9P44720 — Circuit Breaker Accessories

Schneider Electric A9P44720 Acti9 iC40N MCB, 20 A, 3P+N, Cur

MPNA9P44720
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Schneider Electric Acti9 iC40N miniature circuit-breaker, A9P44720, 3P+N, 20 A, curve B, 10 kA Icu at 400 V AC, clip-on DIN rail mount.

$116.32Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

A9P44720 — Identification
ParameterValue
Product / component typeMiniature circuit-breaker
Product nameActi9 iC40
Product rangeActi9
Device applicationDistribution
A9P44720 — Electrical
ParameterValue
Network type (AC/DC)AC
Rated current [In]20 A
Rated operational voltage [Ue]400 V AC 50/60 Hz
Rated insulation voltage [Ui]440 V AC 50/60 Hz conforming to EN/IEC 60947-2
Rated impulse withstand voltage [Uimp]4 kV conforming to EN/IEC 60947-2
Network frequency50/60 Hz
Poles description3P + N
Magnetic tripping limit3...5 x In conforming to EN/IEC 60898-1 4 x In +/- 20 % conforming to EN/IEC 60947-2
A9P44720 — Protection & Performance
ParameterValue
Breaking capacity10 kA Icu at 400 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]6000 A 100 % x Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1 7.5 kA 75 % x Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60947-2
Trip unit technologyThermal-magnetic
Earth-leakage protectionSeparate block
Suitability for isolationYes conforming to EN/IEC 60947-2
Mechanical durability20000 cycles
Electrical durability20000 cycles
Local signallingON/OFF indication Trip indicator
Contact position indicatorYes
A9P44720 — Mechanical
ParameterValue
Connections / terminalsTunnel type terminals top or bottom 1...10 mm² flexible Tunnel type terminals top or bottom 1...16 mm² rigid
Device short nameiC40N
Control typeToggle
Mounting modeClip-on
Mounting supportDIN rail
Usable 9 mm pitches6
Width54 mm
Height85 mm
Depth74 mm
ColourWhite
A9P44720 — Environmental
ParameterValue
IP degree of protectionIP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529
Pollution degree3 conforming to EN/IEC 60947-2
Operating ambient air temperature-25...70 °C
Storage ambient air temperature-40...85 °C
A9P44720 — Approvals
ParameterValue
StandardsEN/IEC 60898-1 EN/IEC 60947-2
A9P44720 — Specifications
ParameterValue
Curve codeB
Number of protected poles3

Product details

The Schneider Electric A9P44720 is an Acti9 iC40N miniature circuit-breaker (MCB) with a 20 A rated current, B-curve tripping characteristic, and 3P+N poles. It breaks 10 kA Icu at 400 V AC (EN/IEC 60947-2) and 6000 A Icn at 400 V AC (EN/IEC 60898-1). The thermal-magnetic trip unit covers both overload and short-circuit protection for distribution circuits.

The B-curve (magnetic trip 3 to 5 x In) means it trips between 60 A and 100 A on short-circuit — standard for residential and light commercial lighting and socket-outlet circuits where inrush is low. For a 3P+N unit, the neutral is switched and the three protected poles handle the phases. The 20 A rating suits branch circuits feeding 4–5 kW loads on a 400 V three-phase system.

Deployment context

Clip-on mounting onto a DIN rail and 6 module pitches (54 mm wide) means it fits standard distribution boards. The IP20 finger-safe enclosure is fine for enclosed panels.

Current-production part (lifecycle stage: current).

Frequently asked questions

What are the key ratings of the A9P44720?

20 A rated current, B-curve, 3P+N poles, 10 kA Icu at 400 V AC (EN/IEC 60947-2), thermal-magnetic trip unit, and clip-on DIN rail mounting.

What standards does the A9P44720 comply with?

It complies with EN/IEC 60898-1 and EN/IEC 60947-2, with limitation class 3 and pollution degree 3.

MPN
A9P44720