Acti9 iID
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RESIDUAL CURRENT CIRCUIT BREAKER (RCCB)
Acti 9 iID - RCCB - 4P - 40A - 500mA s - type A-SI
SKU A9R37440Schneider Electric A9R37440 is a residual current circuit breaker (rccb) in the Acti9 iID range. Key specifications include rated current: 40 A; poles: 4P; residual sensitivity: 500 mA.
40 ARated current
4PPoles
500 mAResidual sensitivity
PRODUCT DATA
Technical specifications
Source: Schneider Electric product catalog.
Verified September 18, 2026.
| Product reference | A9R37440 |
|---|---|
| Range | Acti9 |
| Product name | Acti9 iID |
| Product or component type | Residual current circuit breaker (RCCB) |
| Device short name | iID |
| Poles description | 4P |
| Neutral position | Left |
| [In] rated current | 40 A |
| Network type | AC |
| Earth-leakage sensitivity | 500 mA |
| Earth-leakage protection time delay | Selective |
| Earth-leakage protection class | Type A-SI (Super Immunised) |
| Device location in system | Outgoer |
| Network frequency | 50/60 Hz |
| [Ue] rated operational voltage | 400...415 V AC 50/60 Hz |
| Residual current tripping technology | Voltage independent |
| Rated breaking and making capacity | Idm 1500 A Im 1500 A |
| Rated conditional short-circuit current | 10 kA |
| [Ui] rated insulation voltage | 500 V AC 50/60 Hz |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Contact position indicator | Yes |
| Control type | Toggle |
| Mounting mode | Clip-on |
| Mounting support | 35 mm DIN rail |
| 9 mm pitches | 8 |
| Height | 85 mm |
| Width | 72 mm |
| Depth | 69 mm |
| Embedding depth | 44 mm |
| Net weight | 370 g |
| Colour | White (RAL 9003) |
| Mechanical durability | 20000 cycles |
| Electrical durability | 15000 cycles |
| Locking options description | Padlocking device |
| Connections - terminals | Single 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 length | 14 mm for top or bottom connection |
| Tightening torque | 3.5 N.m top or bottom |
| Standards | EN/IEC 61008-1 EN/IEC 61008-2-1 |
| Product certifications | CCC |
| IP degree of protection | IP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529 |
| Pollution degree | 3 |
| Electromagnetic compatibility | 8/20 µs impulse withstand, 3000 A conforming to EN/IEC 61008-1 |
| Ambient air temperature for operation | -25…60 °C |
| Ambient air temperature for storage | -40…85 °C |
For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official Schneider Electric reference ↗.
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