Schneider Electric Easy9 EZ9F53440 miniature circuit breaker, 4-pole, 40 A, C-curve, 3 kA Icu at 400 V AC, thermal-magnetic trip, clip-on mount, IP20, grey.
| Parameter | Value |
|---|---|
| Product / component type | Miniature circuit-breaker |
| Product range | Easy9 |
| Device application | Distribution |
| Parameter | Value |
|---|---|
| Network type (AC/DC) | AC |
| Rated current [In] | 40 A |
| Rated operational voltage [Ue] | 400 V AC 50/60 Hz |
| Rated insulation voltage [Ui] | 500 V AC 50/60 Hz conforming to SANS 60947-2 |
| Rated impulse withstand voltage [Uimp] | 4 kV conforming to SANS 60947-2 |
| Network frequency | 50/60 Hz |
| Magnetic tripping limit | 8.5 x In +/- 20 % |
| Parameter | Value |
|---|---|
| Breaking capacity | 3 kA Icu at 400 V AC 50/60 Hz conforming to SANS 60947-2 |
| Rated service breaking capacity [Ics] | 3 kA 100 % x Icu at 400 V AC 50/60 Hz conforming to SANS 60947-2 |
| Trip unit technology | Thermal-magnetic |
| Suitability for isolation | Yes conforming to SANS 60947-2 |
| Utilisation category | Category A |
| Mechanical durability | 10000 cycles |
| Electrical durability | 4000 cycles |
| Local signalling | Without |
| Contact position indicator | Yes |
| Parameter | Value |
|---|---|
| Connections / terminals | Tunnel type terminal (top or bottom) 1...35 mm² rigid Tunnel type terminal (top or bottom) 1...35 mm² flexible |
| Device short name | Easy9 MCB |
| Control type | Toggle |
| Mounting mode | Clip-on |
| Mounting support | DIN rail |
| Usable 9 mm pitches | 8 |
| Width | 72 mm |
| Height | 81 mm |
| Depth | 66.5 mm |
| Colour | Grey (RAL 7035) |
| Parameter | Value |
|---|---|
| IP degree of protection | IP20 conforming to IEC 60529 |
| Pollution degree | 2 |
| Operating ambient air temperature | -5...60 °C |
| Storage ambient air temperature | -40...85 °C |
| Parameter | Value |
|---|---|
| Standards | SANS 60947-2 |
| Parameter | Value |
|---|---|
| Curve code | C |
| Number of protected poles | 4 |
The EZ9F53440 is a 4-pole C-curve Easy9 miniature circuit breaker rated 40 A, with a 3 kA breaking capacity (Icu) at 400 V AC, conforming to SANS 60947-2. It uses a thermal-magnetic trip unit, magnetic tripping at 8.5 x In +/- 20 %, and is suitable for isolation per SANS 60947-2.
The 4-pole body is 72 mm wide and clips onto a DIN rail; tunnel terminals accept 1...35 mm² rigid or flexible cable, torqued to 3.5 N.m top or bottom.