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UKM30-1250 Molded Case Circuit Breaker
- Customization:
- Available
- Function:
- Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
- Type:
- Circuit Breaker
- Breaking Capacity:
- Low Voltage Circuit Breakers
- Poles Number:
- 3
- Operation:
- Manual Type
- Mode of Operation:
- Electric Operation
- Installation Mode:
- Miniature Circuit Breaker
Product Description
1. According to the rated ultimate short-circuit breaking capacity, the circuit breakers are classified into four types: C (economic type), L (standard type), M (medium breaking type) and H (high breaking type).
2. ARXM3E accessories are modularized, safe and reliable, with small volume, high breaking capacity, short flashover, high vibration resistance, etc.
3. The circuit breaker has passed the test requirements of GB/T2423.10 and GB/T2423.18, and can withstand the influence of humid air, salt mist, oil mist and mold
4. The neutral pole type of ARXM3-125~630 is A/B circuit breaker when it is of 4 poles specification, which can have a unique function of "overload alarm without tripping" to ensure the continuity of power supply and meet the requirements of Article 6.3.6 of GB50054.
5. It is required to withstand mechanical vibration with frequency of 2Hz~13.2Hz, displacement of ± 1mm, frequency of 13.2Hz~100Hz and acceleration of ± 0.7g;
| Model number | 1-400M | 1-400H |
| Rated current in(A) | 225,250,315,350,400 | 225,250,315,350,400 |
| Rated insulation voltage Ui(V) | AC800 | AC800V |
| Rated impulse withstand voltage Uimp) | 8KV | 8KV |
| Rated operating voltage Ue(V) | AC400 | AC400 |
| Arc distance(mm) | ≤100 | ≤100 |
| Rated ultimate short-circuit breaking capacity Lcu(Ka) | 65 | 85 |
| Rated operating short-circuit breaking capacity Lcs(Ka) | 42 | 65 |
| Operational performance (sub) | 7500 | 7500 |
| Power/No power | 10000 | 10000 |