Optimum Standardization

Optimum sizes for fixed and drawout type are standardized respectively as same dimension.

Operating Mechanism

The stored energy mechanism is employed. Closing spring is charged either manually or electricalIy. Spring charging mechanism enables the constant breaking & making characteristic for higher reliability.

Arc Quenching Device

Grid plates are employed to increase arc blasting effects. This enables high interrupting capacify in spite of compact size.

Breaking Parts

Double insulation is employed for higher safety. Main contacts are designed for high interrupting effects and long endurance.

Standard Auxiliaries

Standard auxiliaries are used commonly for entire ranges in order to achieve easier fittment and convenient maintenance.