NewTrend · high-current miniature circuit breaker
Product overview
YM9-125 provides thermal-magnetic overload and short-circuit protection for higher-current terminal distribution circuits. The catalogue lists 40, 63, 80, 100 and 125A, one to four poles, with C or D release characteristics and 6kA Icn/Ics. Product photographs are series appearance references with original electrical nameplates retained. Electrical selection and the technical data below follow the official catalogue; verify the supplied version against the selected specification.
Technical selection summary
| Series | YM9-125 |
|---|---|
| Rated currents | 40 / 63 / 80 / 100 / 125A |
| Pole arrangements | 1P / 2P / 3P / 4P |
| Rated operational voltage | 240/415V AC (catalogue family rating) |
| Rated insulation voltage | 500V |
| Rated frequency | 50/60Hz |
| Release | Thermal-magnetic |
| Rated breaking capacity Icn / Ics | 6kA / 6kA |
| Impulse withstand voltage Uimp | 4kV |
| Dielectric test | 2000V / 1min |
| Release characteristics | C:5-10 times In; D:10-16 times In |
| Mechanical life | 10,000 operations |
| Electrical life for listed 40-125A ratings | 2,000 operations (catalogue: above 20A) |
| Operating frequency for listed ratings | 120 operations/hour (catalogue: above 32A) |
| Protection | IP20 direct installation; IP40 inside distribution box |
| Reference / ambient / storage temperature | 30 degC / -25 to +70 degC / -25 to +70 degC |
| Conductor capacity | Solid copper 1-50mm2; flexible / ferruled 1-35mm2 |
| Connection | Top or bottom, as specified in catalogue |
| Catalogue standards | IEC60898-1; GB10963.1 |
| Photograph reference | Product photographs are series appearance references with original electrical nameplates retained. Electrical selection and the technical data below follow the official catalogue; verify the supplied version against the selected specification. |
Typical applications
- AC distribution boards and terminal circuits
- Commercial, residential and industrial distribution installations
View or download YM9-125 original catalogue technical data (PDF)
Product reference images and drawings
Original catalogue technical tables
Use the selected catalogue ratings and verify the supplied version before installation. Installation and wiring must be performed by qualified electricians.
