Cooling Fan: Fan Inrush Current (Reference value)
Generally, a breaker (wiring circuit breaker) is used to prevent overcurrent from flowing due to a wiring short circuit or other factor.
Fans
When selecting a breaker, multiply the "current" listed in the specifications by the multiplier in the table below to obtain a reference value for inrush current.
| Product Line/Series | Product Name | Power Supply Voltage [V] | Inrush Current | Flowing Time [S] |
|---|---|---|---|---|
| AC Axial Flow Fan MRS Series |
MRS14 | Three-phase 200/220/230 | 3.0 times | 2.5 |
| MRS16 | Single-phase 100/110/115 Single-phase 200/220/230 |
4.0 times | 3.5 | |
| Three-phase 200/220/230 | 3.5 times | 1.5 | ||
| MRS18 | Single-phase 100/110/115 Single-phase 200/220/230 |
4.0 times | 3.0 | |
| Three-phase 200/220/230 | 4.5 times | 1.0 | ||
| MRS20 | Single-phase 100/110/115 Single-phase 200/220/230 |
4.0 times | 2.5 | |
| Three-phase 200/220/230 | 4.5 times | 1.0 | ||
| MRS25 | Single-phase 100/110/115 Single-phase 200/220/230 |
7.0 times | 2.0 | |
| Three-phase 200/220/230 | 7.5 times | 1.0 | ||
| AC Axial Flow Fan MRE Series |
MRE10 | Single-phase 100/200 | 3.0 times | 3.5 |
| MRE12 | Single-phase 100/200 | 3.5 times | 3.5 | |
| MRE16 | Single-phase 100/110/115 Single-phase 200/220/230/240 |
5.0 times | 3.5 | |
| Three-phase 200/220/230 | 4.5 times | 1.5 | ||
| MRE18 | Single-phase 100/110/115 Single-phase 200/220/230/240 |
6.5 times | 3.0 | |
| Three-phase 200/220/230 | 6.5 times | 1.0 | ||
| MRE20 | Three-phase 200/220/230 | 6.0 times | 1.0 | |
| MRE25 | Single-phase 100/110/115 Single-phase 200/220/230 |
6.0 times | 2.0 | |
| Three-phase 200/220/230 | 8.0 times | 1.0 | ||
| AC Axial Flow Fan MU Series |
MU825S | Single-phase 100/115 Single-phase 200/220/230 |
2.5 times | 2.0 |
| MU925S | Single-phase 100/115 Single-phase 200/220/230 |
2.5 times | 3.0 | |
| MU1025S | Single-phase 100 Single-phase 200/230 |
2.5 times | 3.5 | |
| MU1225S | Single-phase 100/115 Single-phase 200/220/230 |
2.5 times | 4.5 | |
| MU1238A | Single-phase 100/115 Single-phase 200/220/230 |
3.0 times | 5.5 | |
| MU1428S | Single-phase 100 Single-phase 200/220/230 |
2.5 times | 5.0 |
EC Fans
When selecting a breaker, reference the "inrush current" values below, and the "input current" values listed on the product details page, or in the catalog specifications.
| Product Line/Series | Product Name | Power Supply Voltage [V] | Inrush Current [A] | |
|---|---|---|---|---|
| At Power ON | After 20 ms | |||
| EC Fan EMU Series |
EMU938 | Single-phase 100-240 | 8.5 | 0.5 |
| EMU1238 | Single-phase 100-240 | 8.5 | 0.5 | |
| EC Fan EMR Series |
EMR18 | Single-phase 100-120 | 10 | 3 |
| Single-phase 200-240 Three-phase 200-240 |
20 | 1 | ||
Note
- The inrush current value is based on an ambient temperature of 25 °C. It may fluctuate depending on the frequency of power supply startup and the ambient temperature.
Related Information: Values when selecting breakers to combine with AC motors