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YCB3 Mini Circuit Breaker MCB
General
YCB3(DPN) is applicable to protect line-conductor against overload, and short circuit of small sealed motors. It is main for protection of circuits with AC 220V and 50Hz/60Hz, and for unfrequent conversion under normal conditions as well. Its action can be up to two poles with its only one pole volume and be used as a leakage breaker by assembling with leakage. It is produced as IEC60898.
Working condition:
1.The ambient temperature should not be higher than +40C and not lower than -5C and the average temp. of 24 hours should not exceed +35C
2.The altitude should not higher than 2000m
3.The atmospheric relative humidity should not exceed 50% when the highest ambient temperature is +40C,higher humidity maybe allowed at lower temperature.Take measures to solve the dews on the breakers caused by the temperature variation.
4.Pollution grade:2
5.Installation type:II and III,controller and auxiliary circuit
Structure feature
YCB3(DPN) miniature circuit breaker has compact structure in the width of 18mm,it has two pole (P+N),which is specially suitable for household and derive leakage circuit breaker.The insulation case is installed with contact system,arching-extinguish system,sour-link rapid move framework and thermal-electromagnetic release,which is released to different trip current.
Specification
1.Main technical data
| Curve | Rated current (A) | Pole | Rated voltage (V) | Breaking capacity (A) |
| B/C/D | 3.6.10.16.20.25.32 | 1P+N | 220/240VAC | 4500 |
2.Overload protection characteristics
| No. | Type | Initial | Iir | Testing time | Result |
| 1 | All value | Cold | 1.13In | t≥1h | Non-tripping |
| 2 | All value | Following 1 | 1.45In | t1h | Tripping |
| 3 | All value | Cold | 2.55In | 1st60s | Tripping |
| 4 | C | Cold | 5In | t≥0.1s | Non-tripping |
| D | 10In | ||||
| 5 | C | Cold | 10In | t0.1s | Tripping |
| Dimension | |
| Pole number | 1P |
| Length | 80 |
| Width | 18 |
| Height | 76 |
YCB3 Mini Circuit Breaker MCB