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Schneider Electric A9R74440 — Residual Current Breakers (RCCB/RCBO)

Schneider Electric A9R74440 Acti9 iID RCCB, 40 A, 300 mA, 4P

MPNA9R74440
Active

Schneider Electric Acti9 iID RCCB, A9R74440, 4P, 40 A, 300 mA, Type AC, instantaneous, clip-on DIN rail.

$55.93Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

A9R74440 — Residual Current Protection
ParameterValue
Earth-leakage sensitivity (IΔn)300 mA
Earth-leakage protection class / typeType AC
Earth-leakage trip time delayInstantaneous
Residual-current tripping technologyVoltage independent
A9R74440 — 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
Device location in systemOutgoer
Electrical durabilityAC-1: 15000 cycles
Mechanical durability (operating cycles)20000 cycles
A9R74440 — Identification
ParameterValue
Product nameActi9 iID
Product / component typeResidual current circuit breaker (RCCB)
Product range / familyActi9
Device short nameiID
A9R74440 — Mechanical
ParameterValue
Mounting supportDIN rail
Mounting modeClip-on
Control typeToggle
Width in 9 mm modules8
Terminal connectionsSingle terminal top or bottom 1...35 mm² rigid Single terminal top or bottom 1...25 mm² flexible Single terminal top or bottom 1...25 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
Depth73.5 mm
A9R74440 — Environmental
ParameterValue
Operating ambient temperature-5...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
A9R74440 — Approvals
ParameterValue
StandardsEN/IEC 61008-1

Product details

Four poles (4P), Type AC detection, designed for 380...415 V AC 50/60 Hz networks.

300 mA sensitivity is for fire protection, not personnel shock protection. The 6 kV impulse withstand voltage (Uimp) matches the overvoltage category for fixed installations at the outgoer position. Neutral on the left. Terminals accept up to 35 mm² rigid or 25 mm² flexible; wire strip length 14 mm, torque to 3.5 N.m. IP20 finger-safe, IP40 inside a modular enclosure.

Pollution degree 3. Lifecycle stage is current production.

Frequently asked questions

What is the A9R74440's depth?

The depth is 73.5 mm. Panel builders should account for this plus wiring space when laying out the DIN-rail enclosure.

What compliance documentation does Schneider provide for A9R74440?

The device is certified to EN/IEC 61008-1. For specific documentation (declaration of conformity, CE, UKCA, EAC), these are typically available from Schneider Electric's documentation portal using the product range Acti9 iID and order code A9R74440.

MPN
A9R74440