The leakage circuit breaker can be classified into two types of M moderate high breaking )and H (high breaking ,except 4 poles )according to the rated limit short circuit breaking capacity ( Icu).It has features of small volume ,high breaking ,short flashover and vibration resistance ,etc ..
It can be installed vertically ( vertical assembly )or horizontally (horizontal assembly). It conforms to requirements of standards GB14048.2,IEC60947-2 and Appendix B of moulded case leakage circuit breaker .
The reverse incoming line of circuit breaker shall not fall into the line is not acceptable ,i .e.,it ‘s only allowed to connect power line of 1,3,5 and 2,4,6 of load line.
1.According to the rated limit short circuit breaking capacity it can be classified into two types of M (moderate high breaking )and H (high breaking).
2.Operate by handles directly without code: P means electric operation;Z refers to turning the handle.
3.Distribution circuit breaker without code :2 means to protect the electric motor .
4.It can be classified into three pole and four pole according to the number of poles for products .The neutral form (N pole )of 4 poles product is classified into two types :
-Over -current release will not be installed on N pole ,and the N pole is switched on all the time ,without to be on -off with other three poles together .
-Over -current release will not be installed on N pole ,and the N pole is switched on /off with other three poles together .( N pole is switched on and then off ).
5.No alarm unit module is without code ,and alarm unit module should be indicated when ordering.
– Altitude<=2000m
– Ambient temp:-5℃~+40℃
– Able to tolerate the influence of moist air
– Able to tolerate the influence of salt mist and oil mist
– Maximum gradient is 22.5℃
– In the medium without explosion danger and the medium has not enough corrosion to metal,to destroy the insulation gas and conductive dust.
– In the place without invasion of rain and snow.
Reference list of main performance for the leakage circuit breaker
| Model | ERM1L-125 | ERM1L-250 | ||||
| Current level of frame Inm(A) | 125 | 250 | ||||
| Rated current(A) | 16,20,25,32,40,50,63,80,100,125 | 100,125,140,160,180,200,225,250 | ||||
| Rated operational voltage Ue(V) | AC400V | |||||
| Rated insulation voltage Ui(V) | AC800V | |||||
| Number of poles | 3 | 4 | 3 | 4 | ||
| Level of rated limit short circuit breaking capacity | M | H | M | H | ||
| Rated residual action current I△nType I | 100,300,500 mA | 100,300,500 mA | ||||
| Rated residual action current I△nType II | 30,100,300 mA | 30,100,300 mA | ||||
| Rated residual non action current | I△n x 50% | |||||
| Rated resudual short circuit connecting(breaking) capacity I△n(mA) | Icu x 25% | |||||
| Rated limit short circuit breaking capacity Icu(kA) AC400V | 50 | 85 | 50 | 50 | 85 | 50 |
| Rated service short breaking capacity Ics(kA) AC400V | 35 | 50 | 35 | 35 | 50 | 35 |
| Operational performance(times)Power on | 3000 | 2500 | ||||
| Operational performance(times)Power off | 7000 | 6500 | ||||
| Flashover distance(mm) | <=50 | <=50 | ||||
| Model | ERM1L-400 | ERM1L-630 | ||||
| Current level of frame Inm(A) | 400 | 630 | ||||
| Rated current(A) | 200,225,250,315,350,400 | 400,500,630 | ||||
| Rated operational voltage Ue(V) | AC400V | |||||
| Rated insulation voltage Ui(V) | AC800V | |||||
| Number of poles | 3 | 4 | 3 | 4 | ||
| Level of rated limit short circuit breaking capacity | M | H | M | H | ||
| Rated residual action current I△nType I | 100,300,500 mA | 100,300,500 mA | ||||
| Rated residual action current I△nType II | 300,500,1000 mA | 300,500,1000 mA | ||||
| Rated residual non action current | I△n x 50% | |||||
| Rated resudual short circuit connecting(breaking) capacity I△n(mA) | Icu x 25% | |||||
| Rated limit short circuit breaking capacity Icu(kA) AC400V | 65 | 100 | 65 | 65 | 100 | 65 |
| Rated service short breaking capacity Ics(kA) AC400V | 42 | 65 | 42 | 42 | 65 | 42 |
| Operational performance(times)Power on | 1500 | 1500 | ||||
| Operational performance(times)Power off | 4000 | 4000 | ||||
| Flashover distance(mm) | <=100 | <=100 | ||||
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