Product Model
CJ:Enterprise code M:Moulded case circuit breaker 1:Design No □:Rated current of frame □:Breaking capacity characteristic code/S denotes standard type (S can be omitted)H denotes higher type Note: There are four types of neutral pole (N pole) for four phases product.The neutral pole of type A is not equipped with over-current tripping element, its always switched on, and it is not switched on or off together with other three poles. The neutral pole of type B is not equipped with over-current tripping element, and it's switched on or off together with other three poles(the neutral pole is switched on before being switched off)The neutral pole of type C is equipped with over-current tripping element, and it's switched on or off together with other three poles(the neutral pole is switched on before being switched off) The neutral pole of type D is equipped with over-current tripping element, it's always switched on and is not switched on or off together with other three poles.Classification
- By breaking capacity: a standard type(type S) b higher breaking capacity type(type H)
- By connection mode: a front board connection, b back board connection, c plugin type
- By operation mode: a direct handle operation, b rotation handle operation,c electrical operation
- By number of poles: 1P, 2P, 3P, 4P
- By accessory: alarm contact, auxiliary contact, shunt release, under voltage release
Normal Service Condition
- The altitude of the installation site shall not exceed 2000m
- Ambient air temperature
- The ambient air temperature shall not exceed +40℃
- The average value shall not exceed +35℃ with in 24 hours
- The ambient air temperature shall not be less than -5℃
- Atmosphere condition:
- 1There lative humidity of atmosp here shall not exceed 50% at highest temperature of +40℃,and it can be higher atalower temperature,when theaver agelowest temperature in the wettest month doesn't exceed 25℃ can be 90%,conden sationon product surfacedue to temperature change must be takenin to account.
- The pollution level is class 3
Main Technical Parameter
| 1 Rated value of circuit breakers | ||||||||
| Model | Imax (A) | Specifications (A) | Rated Operation Voltage(V) | Rated Insulation Voltage(V) | Icu (kA) | Ics (kA) | Number of Poles (P) | Arcing Distance (mm) |
| CJMM1-63S | 63 | 6,10,16,20 25,32,40, 50,63 | 400 | 500 | 10* | 5* | 3 | ≤50 |
| CJMM1-63H | 63 | 400 | 500 | 15* | 10* | 3,4 | ||
| CJMM1-100S | 100 | 16,20,25,32 40,50,63, 80,100 | 690 | 800 | 35/10 | 22/5 | 3 | ≤50 |
| CJMM1-100H | 100 | 400 | 800 | 50 | 35 | 2,3,4 | ||
| CJMM1-225S | 225 | 100,125, 160,180, 200,225 | 690 | 800 | 35/10 | 25/5 | 3 | ≤50 |
| CJMM1-225H | 225 | 400 | 800 | 50 | 35 | 2,3,4 | ||
| CJMM1-400S | 400 | 225,250, 315,350, 400 | 690 | 800 | 50/15 | 35/8 | 3,4 | ≤100 |
| CJMM1-400H | 400 | 400 | 800 | 65 | 35 | 3 | ||
| CJMM1-630S | 630 | 400,500, 630 | 690 | 800 | 50/15 | 35/8 | 3,4 | ≤100 |
| CJMM1-630H | 630 | 400 | 800 | 65 | 45 | 3 | ||
| Note: When the test parameters for the 400V, 6A without heating release | ||||||||
| 2 Inverse time breaking operation characteristic when each pole of overcurrent release for power distribution is powered on at the same time | ||||||||
| Item of test Current (I/In) | Test time area | Initial state | ||||||
| Non-tripping current 1.05In | 2h(n>63A),1h(n<63A) | Cold state | ||||||
| Tripping current 1.3In | 2h(n>63A),1h(n<63A) | Proceed immediately after No.1 test | ||||||
| 3 Inverse time breaking operation characteristic when each pole of over- current release for motor protection is powered on at the same time. | ||||||||
| Setting Current Conventional time Initial State | Note | |||||||
| 1.0In | >2h | Cold State | ||||||
| 1.2In | ≤2h | Proceeded immediately after the No.1 test | ||||||
| 1.5In | ≤4min | Cold State | 10≤In≤225 | |||||
| ≤8min | Cold State | 225≤In≤630 | ||||||
| 7.2In | 4s≤T≤10s | Cold State | 10≤In≤225 | |||||
| 6s≤T≤20s | Cold State | 225≤In≤630 | ||||||
| 4 The instantaneous operation characteristic of circuit breaker for power distribution shall be set as 10in+20%, and the one of circuit breaker for motor protection shall be set as12ln±20% |