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Schneider Electric A9R50240S — Residual Current Breakers (RCCB/RCBO)

Schneider Electric A9R50240S Acti9 iID K RCCB, 40A 30mA 2P

MPNA9R50240S
Obsolete

Schneider Electric Acti9 iID K, residual current circuit breaker (RCCB), 2P, 40 A, 30 mA, Type AC, 220-240 V AC, clip-on DIN rail.

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

Specifications

A9R50240S — Residual Current Protection
ParameterValue
Earth-leakage sensitivity (IΔn)30 mA
Earth-leakage protection class / typeType AC
Earth-leakage trip time delayInstantaneous
Residual-current tripping technologyVoltage independent
A9R50240S — Electrical Ratings
ParameterValue
Rated current (In)40 A
Rated operational voltage (Ue)220...240 V AC 50/60 Hz
Poles description2P
Neutral pole positionLeft
Network typeAC
Network frequency50/60 Hz
Rated insulation voltage (Ui)440 V AC 50/60 Hz
Rated impulse withstand voltage (Uimp)4 kV
Device location in systemOutgoer
Electrical durabilityAC-1: 2000 cycles
Mechanical durability (operating cycles)5000 cycles
A9R50240S — Identification
ParameterValue
Product nameActi9 iID K
Product / component typeResidual current circuit breaker (RCCB)
Product range / familyActi9
Device short nameiID K
A9R50240S — Mechanical
ParameterValue
Mounting supportDIN rail
Mounting modeClip-on
Control typeToggle
Width in 9 mm modules4
Terminal connectionsTunnel type terminals top or bottom 1...35 mm² rigid Tunnel type terminals top or bottom 1...25 mm² flexible Tunnel type terminals top or bottom 1...25 mm² flexible with ferrule
Wire stripping length16 mm for top or bottom connection
Terminal tightening torque3.5 N.m top or bottom
Width36 mm
Height85 mm
Depth69 mm
A9R50240S — 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 degree2
A9R50240S — Approvals
ParameterValue
StandardsEN/IEC 61008-1

Product details

The Schneider Electric A9R50240S is an Acti9 iID K residual current circuit breaker (RCCB) — a 2-pole, 40 A, 30 mA sensitivity Type AC device for 220-240 V AC networks.

The 30 mA earth-leakage sensitivity is the standard threshold for personal protection against indirect contact — it trips on fault currents above that level, fast enough to prevent ventricular fibrillation per IEC 60364. The 40 A rated current matches the upstream MCB or the load's full-load ampacity; oversizing the RCCB relative to the load leaves the breaker as the overcurrent device, not this part. Voltage-independent tripping means the RCCB does not need a separate power supply to open on a residual fault — the fault current itself energizes the trip coil. That makes it fail-safe in a lost-neutral scenario where an electronic RCCB might not operate.

Tunnel-type terminals accept 1-35 mm² rigid or 1-25 mm² flexible cable. Wire strip length is 16 mm. Neutral is on the left. IP20 on the terminals, IP40 inside the modular enclosure.

Frequently asked questions

What is the A9R50240S used for?

It is a residual current circuit breaker (RCCB) for earth-leakage protection in AC circuits. Use it as an outgoing feeder device in distribution boards to protect against indirect contact and fire risk from earth faults.

What does Type AC mean on this RCCB?

Type AC means it detects sinusoidal AC residual currents only. It is the standard type for general-purpose circuits without electronic loads that produce pulsed or smooth DC fault currents.

Where can I buy the A9R50240S?

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

MPN
A9R50240S