China 3 Pole 4 Pole Cm1 MCCB (Moulded Case Circuit Breaker), Find details about China MCCB, Cm1 MCCB from 3 Pole 4 Pole Cm1 MCCB (Moulded Case Circuit Breaker)
SM1 series moulded case circuit breaker is one of products developed and manufactured by adopting international advanced technology. It is supplied with rated insulating voltage 550 and 800V and used for circuit of AC 50/60Hz, rated operating voltage AC 400V (or below), rated operating current up to 1600A for infrequent changing over and starting of the motors.The products conforms to IEC60947-2 standard. |
Specification |
Type | Rated current (A) | Polenum-ber | Ratedinsui-atingvolt-age(V) | Rated operat-ingvolt-age(V) | Arcing- over distance (mm) | Ultimate short circuit breaking capacity (KA) | Servies short circuit breaking capacity (KA) | Operation perform- ance | Utiliza-tioncat-egory | |
Load | Unload | |||||||||
SM1-63L | (6),10 16,20 25 ,32 40,50 63 | 3, 4 | 500V | 400V | 0 | 25 | 18 | 1500 | 8500 | A |
SM1-63M | 0 | 50 | 35 | |||||||
SM1-100L | (10),16 20,25 32,40 50,63 80,100 | 800V | 0(≤50) | 35 | 22 | |||||
SM1-100M | 0(≤50) | 50 | 35 | |||||||
SM1-100H | 0(≤50) | 85 | 50 | 1000 | 7000 | |||||
SM1-225L | 100,125 160,180 200,225 | ≤50 | 35 | 22 | ||||||
SM1-225M | ≤50 | 50 | 35 | |||||||
SM1-225H | ≤50 | 85 | 50 | 1000 | 4000 | |||||
SM1-400L | 225,250 315,350 400 | ≤50 | 50 | 35 | ||||||
SM1-400M | ≤100 | 65 | 42 | |||||||
SM1-630L | 400,500 630 | ≤100 | 50 | 35 | ||||||
SM1-630M | ≤100 | 65 | 42 | |||||||
SM1-630H | ≤100 | 100 | 65 | |||||||
SM1-800M | 630,700 800 | 3 | ≤100 | 75 | 50 | |||||
SM1-800H | ≤100 | 100 | 65 | |||||||
SM1-1250M | 1000,1250 | ≤100 | 100 | 65 | ||||||
SM1-1250H | ≤100 | 125 | 75 | |||||||
SM1-1600M | 1600 | ≤100 | 150 | 80 |
Protection Characteristic |
The thermodynamic release of a circuit breaker provides the feature of inverse time-delay, while the magnetic release is the instantaneous operation as shown on table 2(distribution circuit breaker) and table 3 (motor protection circuit breaker). |
Rated current of release (A) | Thermodynamic release( ambient temperature ) land +40°C marine +45°C | Operating current of magnetic release (A) | |
1.05In(cold state) Inoperative time(h) | 1.30In(heat state) Operative time(h) | ||
10≤In≤63 | ≥ 1 | < 1 | 10In±20% |
63<In≤100 | ≥ 2 | < 2 | |
100≤In≤800 | ≥ 2 | < 2 | 5In±20% 10In±20% |
Rated current | Thermodynamic release ( ambient temperature ) land +40°C marine +45°C | Operating current of magnetic release (A) | |||
of release (A) | 1.0In(cold state) non-trip time(h) | 1.20In(heat state) trip time (h) | 1.50In(heat state) trip time (h) | 7.2In(cold state) trip time(h) | |
10 ≤ In ≤ 225 | ≥ 2 | <2 | ≤ 4min | 4s < Tp ≤ 10s | 12In±20% |
225 ≤ In ≤ 630 | ≤ 8min | 6s < Tp ≤ 20s |