NewTrend · Type AC residual current circuit breaker
Product overview
NewTrend YL9-AC is a DIN-rail RCCB for sinusoidal AC residual-current detection. This page offers the two configurations confirmed by the product nameplates: 63A and 30mA, with 2P (1P+N) at 230V AC or 4P (3P+N) at 400V AC. It provides residual-current protection and requires separate coordinated overload and short-circuit protection.
Technical selection summary
| Model / residual-current type | YL9-AC / Type AC (sinusoidal alternating residual current) |
|---|---|
| Published configurations | 63A, 30mA: 2P (1P+N), 230V AC; 4P (3P+N), 400V AC |
| Working frequency | 50/60Hz |
| Rated residual operating current | 30mA |
| Conditional short-circuit current (Inc / IΔc) | 6000A for the photographed configurations; coordinate separate short-circuit protection |
| Making and breaking capacity (Im / IΔm) | 630A at In = 63A |
| Rated insulation voltage | 500V |
| Rated impulse withstand voltage | 4kV |
| General-type residual-current breaking time | At IΔn: ≤0.10s; at 2IΔn: ≤0.08s; at 5IΔn: ≤0.04s |
| Terminal capacity / tightening torque | 1–35mm² / 2.5N·m |
| Mounting / protection | TH35-7.5 DIN rail / IP20 |
| Mechanical / electrical life | 10,000 / 4,000 operations |
| Reference standards | IEC/EN 61008-1; GB/T 16916.1 |
| Outline dimensions | 2P: 36mm wide; 4P: 72mm wide; see original dimension drawing |
Operation
- The test button is marked for monthly testing. Follow the product wiring diagram and applicable installation requirements.
- The downloadable YL9 family catalogue also covers other current ratings and residual-current types; the selectable configurations on this page are limited to the two photographed 63A, 30mA Type AC versions.
Typical applications
- Distribution circuits where Type AC residual-current protection is specified for the connected loads
- DIN-rail consumer units and commercial distribution panels with coordinated overcurrent protection
View or download YL9 family catalogue: technical data, operation and outline dimensions (PDF)
Product reference images and drawings
YL9 family technical data
2-pole and 4-pole outline dimensions
Residual-current operating times by type
Type AC detects sinusoidal alternating residual current. Inc/IΔc is a conditional short-circuit rating, not an independent overload or short-circuit protective function. Installation and wiring must be performed by qualified electricians.
