Overview
The EZ9R34440 is a 4-pole Type AC RCCB from the Schneider Easy9 range, rated for 40 A switching current with a 30 mA earth-leakage sensitivity. It breaks 500 A on fault and mounts on a DIN rail with a 72 mm width and 72 mm depth.
Schneider EZ9R34440 Easy9 RCCB, 4-pole, 40 A, 30 mA
MPNEZ9R34440
Obsolete
Schneider EZ9R34440 Mcb Devices — now discontinued, supplied from remaining surplus and broker stock.
$42.63Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Residual Current Protection
| Parameter | Value |
|---|---|
| Earth-leakage sensitivity (IΔn) | 30 mA |
| Earth-leakage protection class / type | Type AC |
| Earth-leakage trip time delay | Instantaneous |
| Residual-current tripping technology | Voltage independent |
Electrical Ratings
| Parameter | Value |
|---|---|
| Rated current (In) | 40 A |
| Rated operational voltage (Ue) | 400 V AC 50 Hz |
| Neutral pole position | Left |
| Network type | AC |
| Network frequency | 50 Hz |
| Rated insulation voltage (Ui) | 440 V AC |
| Rated impulse withstand voltage (Uimp) | 4 kV |
| Device location in system | Outgoer |
| Electrical durability | AC: 2000 cycles 400 V AC 50 Hz |
| Mechanical durability (operating cycles) | 5000 cycles |
Identification
| Parameter | Value |
|---|---|
| Product / component type | Residual current circuit breaker (RCCB) |
| Device short name | Easy9 RCCB |
Mechanical
| Parameter | Value |
|---|---|
| Mounting support | DIN rail |
| Mounting mode | Clip-on |
| Control type | Toggle |
| Width in 9 mm modules | 8 |
| Terminal connections | Tunnel type terminal (top or bottom) 1...35 mm² rigid Tunnel type terminal (top or bottom) 1...25 mm² flexible |
| Terminal tightening torque | 3.5 N.m top or bottom |
| Width | 72 mm |
| Height | 82 mm |
| Depth | 72 mm |
Environmental
| Parameter | Value |
|---|---|
| Operating ambient temperature | -25...60 °C |
| Storage ambient temperature | -40...85 °C |
| IP degree of protection | IP20 |
| Pollution degree | 2 conforming to IEC 61008-1 |
| Relative humidity | 95 % at 55 °C |
| Tropicalisation | 2 |
Approvals
| Parameter | Value |
|---|---|
| Standards | IEC 61008-1 |
Product details
MPN
EZ9R34440