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Schneider Electric A9Z24440 — Residual Current Breakers (RCCB/RCBO)

Schneider Electric A9Z24440 Acti9 iID RCCB, 40 A, 300 mA, 4P

MPNA9Z24440
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Schneider Electric Acti9 iID, A9Z24440, 4-pole RCCB, 40 A, 300 mA Type A, 380-415 V AC, instantaneous, DIN rail clip-on.

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

Specifications

A9Z24440 — Residual Current Protection
ParameterValue
Earth-leakage sensitivity (IΔn)300 mA
Earth-leakage protection class / typeType A
Earth-leakage trip time delayInstantaneous
Residual-current tripping technologyVoltage independent
A9Z24440 — Electrical Ratings
ParameterValue
Rated current (In)40 A
Rated operational voltage (Ue)380...415 V AC 50/60 Hz
Poles description4P
Neutral pole positionLeft
Network typeAC
Network frequency50/60 Hz
Rated insulation voltage (Ui)500 V AC 50/60 Hz
Rated impulse withstand voltage (Uimp)6 kV
Electrical durabilityAC-1: 15000 cycles
Mechanical durability (operating cycles)20000 cycles
A9Z24440 — Identification
ParameterValue
Product nameActi9 iID
Product / component typeResidual current circuit breaker (RCCB)
Product range / familyActi9
Device short nameiID
A9Z24440 — Mechanical
ParameterValue
Mounting supportDIN rail
Mounting modeClip-on
Control typeToggle
Width in 9 mm modules8
Terminal connectionsDouble terminal front 1...35 mm² rigid Double terminal front 1...25 mm² flexible Double terminal front 1...25 mm² flexible with ferrule Double terminal back 1...25 mm² rigid Double terminal back 1...16 mm² flexible Double terminal back 1...16 mm² flexible with ferrule
Wire stripping length14 mm for top or bottom connection
Terminal tightening torque3.5 N.m top or bottom
Width72 mm
Height91 mm
Depth73 mm
A9Z24440 — Environmental
ParameterValue
Operating ambient temperature-25...60 °C
Storage ambient temperature-40...85 °C
IP degree of protectionIP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529
Pollution degree3
A9Z24440 — Approvals
ParameterValue
StandardsEN/IEC 61008-1 EN/IEC 61008-2-1

Product details

The Schneider Electric A9Z24440 is a 4-pole residual current circuit breaker (RCCB) from the Acti9 iID series, rated 40 A with 300 mA Type A earth-leakage sensitivity.

Type A detection covers sinusoidal AC and pulsating DC residual currents — common for electronics, VFDs, and single-phase rectified loads found in refrigeration compressor drives. Rated insulation voltage (Ui) is 500 V AC, and impulse withstand (Uimp) is 6 kV, giving it clearance for 400 V class distribution.

Neutral on the left, toggle control, padlockable. IP20 body, IP40 inside a modular enclosure; fine for dry indoor panels. Storage range -40 to 85 °C, operating -25 to 60 °C, so it handles unheated electrical rooms or freezer antechambers without derating.

Frequently asked questions

What is the A9Z24440 used for?

It is a 4-pole residual current circuit breaker (RCCB) for 40 A, 300 mA Type A earth-leakage protection on 380-415 V AC networks — typically feeder or sub-distribution protection in commercial and light industrial panels.

What standards does the A9Z24440 comply with?

It complies with EN/IEC 61008-1 and EN/IEC 61008-2-1 for residual current operated circuit-breakers without integral overcurrent protection.

Where can I buy the A9Z24440?

The A9Z24440 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
A9Z24440