The Schneider Electric A9N18568 is an add-on residual current device (RCD) from the Acti9 Vigi C120 range, designed to clip onto a compatible Acti9 MCB or MCCB via screw connection, providing earth-leakage protection downstream. It is a 3-pole unit rated for 125 A continuous current, with a 500 mA sensitivity and Type AC detection — meaning it trips on sinusoidal AC residual currents only, instantaneous response. The voltage-independent tripping mechanism means it operates without needing an external supply, even if the line voltage drops. Rated operational voltage is 230…415 V AC at 50/60 Hz, with an insulation voltage of 500 V AC and impulse withstand of 6 kV per IEC 60947-2. Mounts via clip-on to a 35 mm symmetrical DIN rail, occupying 10 x 9 mm pitches (171 mm width). Terminals accept 1…50 mm² rigid or 1…35 mm² flexible cable; tightening torque is 3.5 N·m.
Schneider Electric A9N18568 Vigi C120 3P 125A 500mA RCD, Act
MPNA9N18568
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Schneider Electric Acti9 Vigi C120 add-on residual current device, A9N18568, 3P, 125 A, 500 mA, Type AC, instantaneous, 230…415 V AC.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Earth-leakage sensitivity (IΔn) | 500 mA |
| Earth-leakage protection class / type | Type AC |
| Earth-leakage trip time delay | Instantaneous |
| Residual-current tripping technology | Voltage independent |
| Parameter | Value |
|---|---|
| Rated current (In) | 125 A |
| Rated operational voltage (Ue) | 230...415 V AC 50/60 Hz |
| Poles description | 3P |
| Network type | AC |
| Network frequency | 50/60 Hz |
| Rated insulation voltage (Ui) | 500 V AC 50/60 Hz conforming to IEC 60947-1 |
| Rated impulse withstand voltage (Uimp) | 6 kV conforming to IEC 60947-2 |
| Device location in system | Outgoer Group incomer |
| Mechanical durability (operating cycles) | 20000 cycles |
| Parameter | Value |
|---|---|
| Product name | Acti9 Vigi C120 |
| Product / component type | Add-on residual current device |
| Product range / family | Acti9 |
| Device short name | Vigi C120 |
| Parameter | Value |
|---|---|
| Mounting support | 35 mm symmetrical DIN rail |
| Mounting mode | Clip-on |
| Width in 9 mm modules | 10 |
| Terminal connections | Tunnel type terminals 1...35 mm² flexible Tunnel type terminals 1...50 mm² rigid |
| Wire stripping length | 15 mm |
| Terminal tightening torque | 3.5 N.m |
| Width | 171 mm |
| Height | 95 mm |
| Depth | 73 mm |
| Parameter | Value |
|---|---|
| Operating ambient temperature | -5...60 °C |
| Storage ambient temperature | -40...60 °C |
| IP degree of protection | IP20 |
| Pollution degree | 3 conforming to IEC 60947-2 |
| Parameter | Value |
|---|---|
| Standards | EN 61009 IEC/EN 61009-2-1 |
Product details
Frequently asked questions
Where can I buy the A9N18568 and get a price?
The A9N18568 is sourced to order against an RFQ through independent distribution channels. Submit an RFQ for current availability and pricing — confirmed at quote time.
What is the A9N18568's earth-leakage sensitivity and type?
It is a Type AC RCD with 500 mA sensitivity and instantaneous tripping, meaning it detects sinusoidal AC residual currents only and trips without intentional delay.
What standards does the A9N18568 comply with?
It complies with EN 61009 and IEC/EN 61009-2-1, with pollution degree 3 per IEC 60947-2 and 6 kV impulse withstand voltage per IEC 60947-2.
MPN
A9N18568