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Schneider Electric A9KR14440BQ — Residual Current Breakers (RCCB/RCBO)

Schneider Electric A9KR14440BQ Acti9 ID K RCCB, 40 A, 300 mA

MPNA9KR14440BQ
Active

Schneider Electric Acti9 ID K, residual current circuit breaker (RCCB), 4P, 40 A, 300 mA sensitivity, Type AC, instantaneous, 380-415 V AC, clip-on DIN rail.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

A9KR14440BQ — 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
A9KR14440BQ — Electrical Ratings
ParameterValue
Rated current (In)40 A
Rated operational voltage (Ue)380...415 V AC 50 Hz
Poles description4P
Neutral pole positionLeft
Network typeAC
Network frequency50 Hz
Rated insulation voltage (Ui)440 V AC 50 Hz
Rated impulse withstand voltage (Uimp)4 kV
Device location in systemGroup incomer
Electrical durabilityAC-1: 4000 cycles
Mechanical durability (operating cycles)5000 cycles
A9KR14440BQ — Identification
ParameterValue
Product nameActi9 ID K
Product / component typeResidual current circuit breaker (RCCB)
Product range / familyActi9
Device short nameID K
A9KR14440BQ — Mechanical
ParameterValue
Mounting supportDIN rail
Mounting modeClip-on
Control typeToggle
Width in 9 mm modules8
Terminal connectionsBiconnect top or bottom 1...35 mm² rigid Biconnect top or bottom 1...25 mm² flexible
Wire stripping length14 mm for top or bottom connection
Terminal tightening torque3.5 N.m top or bottom
Width72 mm
Height81 mm
Depth68 mm
A9KR14440BQ — Environmental
ParameterValue
Operating ambient temperature-5...55 °C
Storage ambient temperature-25...85 °C
IP degree of protectionIP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529
Pollution degree2
Relative humidity95 % at 55 °C
Tropicalisation2 conforming to IEC 60068-1
A9KR14440BQ — Approvals
ParameterValue
StandardsIS 12640-1 EN/IEC 61008-1 EN/IEC 61008-2-1

Product details

The Schneider Electric A9KR14440BQ is a 4-pole residual current circuit breaker (RCCB) from the Acti9 ID K range, rated at 40 A with 300 mA earth-leakage sensitivity. The rated operational voltage is 380...415 V AC at 50 Hz, and it carries a rated breaking and making capacity of Idm 500 A / Im 500 A. This is a voltage-independent RCCB, so it does not require a separate power supply to trip on a fault.

Neutral is on the left. Terminals accept 1...35 mm² rigid or 1...25 mm² flexible cable, with a wire stripping length of 14 mm. The device occupies 8 of the 9 mm pitches. IP20 rated (IP40 in a modular enclosure).

Frequently asked questions

What is the A9KR14440BQ used for?

It is a residual current circuit breaker (RCCB) for group incomer protection in AC networks, detecting earth leakage currents and disconnecting the circuit to prevent electric shock or fire.

What are the key ratings of the A9KR14440BQ?

Rated current 40 A, earth-leakage sensitivity 300 mA, Type AC, instantaneous trip, rated operational voltage 380...415 V AC, breaking capacity Idm 500 A / Im 500 A.

MPN
A9KR14440BQ