Standard: IEC60947-2
Poles: 3P
Frame Current: 400A
Rated Current: 250,280,315,350,400A
Rated voltage: 800/1000/1140V
Rated insulation voltage: 1250V
Rated impulse withstand voltage: 12kV
Trip unit technology: Thermal-magnetic
Ambient Temperature: -25...+40 ºC
EKM6-400H represents advanced circuit protection technology for demanding industrial environments. This premium 400A moulded case circuit breaker features enhanced 1250V insulation voltage, making it suitable for high-voltage applications where standard MCCBs may be insufficient.
With five adjustable current settings ranging from 250A to 400A, the EKM6-400H offers precise protection tailoring to match specific load requirements. Its exceptional short-circuit performance includes a breaking capacity (Icu) of 50kA at 800V, 20kA at 1000V, and 15kA at 1140V, while providing an improved service breaking capacity (Ics) of 37.5kA at 800V.
Engineered to stringent IEC60947-2 standards, this 3-pole MCCB incorporates sophisticated thermal-magnetic trip technology that maintains consistent performance across operating temperatures from -25°C to +40°C. With a mechanical durability of 20,000 operations and electrical durability of 1,500 operations, the EKM6-400H delivers reliable protection for critical infrastructure, heavy machinery, and industrial power distribution systems.
Model |
EKM6-400H |
|
Ampere frame (Inm) |
400A |
|
Rated current (In) |
250,280,,315,350,400A |
|
Rated insulation voltage (Ui) |
1250V |
|
Rated impulse withstand voltage (Uimp) |
12kV |
|
Rated operational voltage (Ue) |
800V, 1000V, 1140V |
|
Rated ultimate short-circuit Breaking capacity (Icu) kA |
800V |
50 |
|
1000V |
20 |
|
1140V |
15 |
Rated service short-circuit breaking capacity (Ics) kA |
800V |
37.5 |
|
1000V |
15 |
|
1140V |
15 |
Isolation function |
Available |
|
Utilization category |
Cat.A |
|
Type of trip unit |
Thermal-Magnetic |
|
Mechanical life (Times) |
20000 |
|
Electrical life (Times) |
1500 |
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