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Schneider Electric A9Y81725 — Residual Current Breakers (RCCB/RCBO)

Schneider Electric A9Y81725 Acti9 Vigi iC40, 25A 300mA Type

MPNA9Y81725
Active

Schneider Electric Acti9 Vigi iC40 add-on residual current device, A9Y81725, 25 A rated current, 300 mA Type A earth-leakage protection, 400 V AC, DIN rail clip-on.

$253.91Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

A9Y81725 — 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
Local signalling / indicationFault indication
A9Y81725 — Electrical Ratings
ParameterValue
Rated current (In)25 A
Rated operational voltage (Ue)400 V AC 50/60 Hz
Poles description3P + N
Neutral pole positionLeft
Network typeAC
Network frequency50/60 Hz
Rated insulation voltage (Ui)440 V AC 50/60 Hz conforming to EN/IEC 61009-2-1
Rated impulse withstand voltage (Uimp)4 kV conforming to EN/IEC 61009-2-1
Device location in systemOutgoer
Electrical durability10000 cycles
Mechanical durability (operating cycles)20000 cycles
A9Y81725 — Identification
ParameterValue
Product nameActi9 Vigi iC40
Product / component typeAdd-on residual current device
Product range / familyActi9
Device short nameVigi iC40
A9Y81725 — Mechanical
ParameterValue
Mounting supportDIN rail
Mounting modeClip-on
Width in 9 mm modules4
Terminal connectionsTunnel type terminal bottom 1...16 mm² rigid Tunnel type terminal bottom 1...10 mm² flexible
Wire stripping length14 mm for bottom connection
Terminal tightening torque2 N.m bottom
Width90 mm
Height99.5 mm
Depth74 mm
A9Y81725 — 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 conforming to EN/IEC 61009-2-1
Relative humidity95 % at 55 °C
Operating altitude2000 m
A9Y81725 — Approvals
ParameterValue
StandardsEN/IEC 61009-2-1

Product details

The Schneider Electric A9Y81725 is an Acti9 Vigi iC40 add-on residual current device (RCD) designed to bolt onto the side of an Acti9 iC40 MCB via screws, creating a combined RCBO assembly in a single DIN-rail footprint.

The 300 mA sensitivity is the standard threshold for fire-protection and prevention of insulation degradation in fixed equipment circuits — it is not for personal shock protection, which requires 30 mA. Voltage-independent tripping means the RCD operates without needing a separate power supply or the line voltage — it uses the fault energy itself to trip, so protection remains active even if the neutral is lost upstream.

Neutral is on the left, matching the standard Acti9 busbar polarity. Tunnel terminals accept 1…16 mm² rigid or 1…10 mm² flexible at the bottom, with a tightening torque of 2 N·m.

Standards and environmental limits

Operating temperature range -25…60 °C, storage -40…85 °C, with 95 % relative humidity at 55 °C. IP20 on the device body, IP40 inside the modular enclosure. Impulse withstand voltage 4 kV. Quality marks include OVE and IMQ.

Frequently asked questions

What is the closest alternative to A9Y81725 in the Acti9 family?

Within the Acti9 range, the Vigi iC40 is the add-on RCD module that mates specifically with the iC40 MCB. The closest functional sibling is the Vigi iC60 (different MCB frame), which is not pin-compatible — the iC40 and iC60 use different mechanical interlock and busbar positions. For a direct replacement, stick with the A9Y81725 or its variants with different sensitivity/type ratings within the same Vigi iC40 sub-family.

Where can I buy the A9Y81725 and how is it quoted?

The A9Y81725 is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for your target quantity and delivery window.

MPN
A9Y81725