English
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FRAME
WIRING METHOD
OPERATION METHOD
APPLICABLE STANDARDS
GB14048.2、IEC60947.2
FEATURES
Small volume, high breaking capacity, short flying arc,vibration resistant;
Reasonable structure,reliable performance,easy installation;
Extensive optional accessories,can installed on-line,meet the technical requirements of different power distribution systems.
FAQ
1、What are the wiring methods for this model?
There are 4 types in total: Front panel wiring,rear panel extended wiring,plug-in front panel wiring,plug-in rear panel wiring.
2、What are the differences between thermal magnetic and electronic types?
The thermal-magnetic type is based on thermal/electromagnetic effects and is suitable for general protection; the electronic type provides more precise protection settings and more functions.
3、What protection functions does it have?
Overload protection, short circuit protection, undervoltage protection.
4、What is breaking capacity?
The maximum short-circuit current that the MCCB can safely cut off, in kA. The selection should be greater than or equal to the fault current value.
TECHNICAL DATASHEET OFASKM2RT THERMOMAGNETIC NORMAL PROTECTION MOLDED CASE CIRCUIT BREAKER
| Model | ASKM2RT-160 | ASKM2RT-250 | ASKM2RT-630 | ASKM2RT-800 | |||||||||
| Frame rating current Inm(A) | 160 | 250 | 630 | 800 | |||||||||
| No.of poles | 3P/4P | 3P/4P | 3P/4P | 3P/4P | |||||||||
| Rated current In(A) | 63 80 100 125 160 | 125 140 160 180 200 225 250 | 250 315 350 400 500 630 | 500 630 700 800 | |||||||||
| Rated operational voltage Ue(V) | AC400V/415V | AC400V/415V | AC400V/415V | AC400V/415V | |||||||||
| Rated insulation voltage Ui(V) | 800V | ||||||||||||
| Rated impulse withstand voltage Uimp(V) | 8000V | ||||||||||||
| Arc distance(mm) | ≯50(0)** | ≯50(0)** | ≯50(0)** | ≯100(0)** | |||||||||
| Breaking capacity level | C | L | M | C | L | M | L | M | H | L | M | H | |
| Ultimate short-circuit breaking capacity Icu(kA) | AC400V/415V | 25 | 35 | 50 | 25 | 35 | 50 | 35 | 50 | 75 | 35 | 50 | 75 |
| Service short-circuit breaking capacity Ics(kA) | AC400V/415V | 18 | 25 | 35 | 18 | 25 | 35 | 25 | 35 | 75 | 25 | 35 | 75 |
| Use category | A | A | A | A | |||||||||
| Electrical service life(times of operation) | AC400V/415V | 3000 | 3000 | 2000 | 1500 | ||||||||
| Mechanical service life(times of operation) | without maintenance | 7000 | 7000 | 4000 | 4000 | ||||||||
| with maintenance | 20000 | 20000 | 20000 | 20000 | |||||||||
| Outline dimensions (mm) | W(3P/4P) | 90/120 | 105/140 | 140/184 | 210/280 | ||||||||
| L | 155 | 165 | 258 | 276 | |||||||||
| H(includinghandle) | 92 | 100 | 113 | 114 | |||||||||
