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Application:
This series moulded case circuit breaker is one of new type breakers which our company adopts international advanced desigin,manufacture technology to develop.The rated insulating voltage is 950V.Suitable for AC 50Hz(60Hz).Rated working voltage 690v or below,rated working current is 12.5A to 630A of circuit and used in distributing electric energy.Non-frequent making and breaking in the normal conditions and protecting when circuit and installation are overload,short circuit and lacking voltage.Rated shell-rack and the breaker whose current is under 400A,take protection effect when mouse cage motors non-frequent start,breakering off working and protecting from overload,short circuit and lacking voltage,The product conforms to GB14048.2,IEC 60947-2 standards.
Rated Current of Release (A) | Thermodynamic Release (ambient Temp +40) | Operational Current of Magnetic Release (A) | |
1.05In (Cold State inoperative time (h) | 1.30In (thermal State) Operative Time (h) | ||
In≤63 | ≥1 | 1 | 10In±20% |
63In≤100 | ≥2 | 2 | 10In±20% |
100In≤630 | ≥2 | 2 | 5-10In±20% |
Rated Current of Release (A) | Thermodynamic Release (ambient temp +40) | Operational Current of Magnetic Release (A) | |||
1.0In (cold state) operative time (h) | 1.20In (thermal state) operative time (h) | 1.50In (cold state) operative time (h) | 1.01In (thermal state) operative time (h) | ||
12.5≤In≤400 | ≥2 | 2 | ≤4min | 2STp10S | 12In±20% |
Technical Specifications
Type | Rated Current (A) | Poles | Rated Insulation Voltage (V) | Rated Operating Voltage (V) | Ultimate Short Circuit Breaking Capacity | Arcing Over Distance (mm) |
CKNS-100 | 12-100 | 3, 4 | 950 | 690 | 18-150 | 0 |
CKNS-160 | 16-160 | 25-150 | ||||
CKNS-250 | 160-250 | 25-150 | ||||
CKNS-400 | 200-400 | 35-150 | ||||
CKNS-630 | 315-630 | 35-150 |
Moulded Case Circuit Breaker 1.Stable high quality& Punctual delivery 2.Competitive price &professional service 3.Complied with CE and ISO9001 4.Strict QC Stable Quality5.Rich Experience Quality QC 6.Golden supplier of alibaba
7.CE,ROHS,CERTIFICATED8.Quality guarantees 2 years9.Professional manufacture for 10 years10.We can supply all kinds of MCCB ODM
CKNS-250A-4P Moulded Case Circuit Breaker(MCCB)