Low Voltage Circuit Breakers
Manual Type
High-Speed Circuit Breaker
Air
Fixed
MCCB
3
Circuit Breaker
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
CCC
CNJINZE
PCS/Box
China
8536200000
Product Description

Normal working situation
Altitude 2000m and below;
Ambient temperature no higher than+40ºC(45ºC for watercraft)no less than-5ºC;
Stand moist air;
Stand salty&oil mildew;
Most gradient 22.5°;
Atmosphere without corrupt&electric air and no danger of explosion;
Without rain effect.
Main technique data of MCCB
Type | JZM1-63L JZM1-63M | JZM1-125L JZM1-125M | JZM1-250L | ||||||||||||
Rated frame level current lnm(A) | 63 | 125 | 250 | ||||||||||||
Rated current ln (A) | 10, 12, 16, 20, 25, 32, 40, 50, 63 | 16, 20, 25, 32, 40, 50, 63, 80, 100, 125 | 125, 160, 180, 200, 225, 250 | ||||||||||||
Rated insulated voltage Ui(AC V) | 500 | 800 | 800 | ||||||||||||
Rated impulse-stand voltage Ui(V) | 8000 | 8000 | 8000 | ||||||||||||
Rated working voltage Ue(AC V) | 400/415 | 400/415 | 400/415 | ||||||||||||
Poles | 3 | 4 | 3 | 4 | 3 | 4 | |||||||||
Rated limited short-circuit breaking capacity level | L | M | L | M | L | M | L | M | L | M | L | M | |||
Rated limited short-circuit breaking capacity lcu(KA) | 400/415V | 20 | 30 | 20 | 30 | 30 | 50 | 30 | 50 | 35 | 50 | 35 | 50 | ||
Rated working short-circuit breaking capacity lcs(KA) | 400/415V | 15 | 22.5 | 15 | 22.5 | 22.5 | 37.5 | 22.5 | 37.5 | 26.25 | 37.5 | 26.25 | 37.5 | ||
Operation characteristic (Times) | Connected | 2000 | 2000 | 1500 | |||||||||||
Break | 10000 | 10000 | 8500 | ||||||||||||
Outlook dimension | L | 135 | 150 | 165 | |||||||||||
W | 78 | 103 | 92 | 122 | 107 | 142 | |||||||||
H | 73.5 | 81.5 | 72 | 88 | 86 | 103 | |||||||||
Weight(g) | 735 | 849 | 1464 | 1952 | 1257 | 1493 | 1493 | 1900 | 1714 | 2014 | 1900 2014 | ||||
Arcing distance(mm) | ≤50 | ≤50 | ≤50 |
Type | JZM1-400 | JZM1-630 | JZM1-800 | |||||||||
Rated frame level current lnm(A) | 400 | 630 | 800 | |||||||||
Rated current ln (A) | 225, 250, 315, 350, 400 | 400, 500, 630 | 630, 700, 800 | |||||||||
Rated insulated voltage Ui(AC V) | 800 | 800 | 800 | |||||||||
Rated impulse-stand voltage Ui(V) | 8000 | 8000 | 8000 | |||||||||
Rated working voltage Ue(AC V) | 400/415 | 400/415 | 400/415 | |||||||||
Poles | 3 | 4 | 3 | 4 | 3 | 4 | ||||||
Rated limited short-circuit breaking capacity level | M | H | M | H | M | H | M | H | H | H | ||
Rated limited short-circuit breaking capacity lcu(KA) | 400/415V | 50 | 70 | 50 | 70 | 50 | 70 | 50 | 70 | 80 | 80 | |
Rated working short-circuit breaking capacity lcs(KA) | 400/415V | 37.5 | 52.5 | 37.5 | 52.5 | 37.5 | 52.5 | 37.5 | 52.5 | 60 | 60 | |
Operation characteristic (Times) | Connected | 1000 | 1000 | 500 | ||||||||
Break | 5000 | 4000 | 3000 | |||||||||
Outlook dimension | L | 257 | 270 | 280 | ||||||||
W | 150 | 198 | 182 | 240 | 210 | 280 | ||||||
H | 106.5 | 110 | 115.5 | |||||||||
Weight(g) | 5420 | 7443 | 6116 | 7116 | 7116 | 9929 | 8526 | 11731 | ||||
Arcing distance(mm) | ≤50 | ≤100 | ≤100 |
The N-pole of four-poles breaker is sited at the right side of the product has four types:
Type A: Without current trip-lease on N pole which making all the time, not closing and opening with the other three poles.
Type B: Without current trip-release on N pole which closing and opening with the other poles.
Type C: With current trip-release which closing and opening with the other three poles.
Type D: With current trip-release which making all the time not closing and opening with the other three poles.







