Vacuum Circuit Breakers and Contactors

• Does not use any of the six specified hazardous substances (mercury, cadmium, lead, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers; under regulated values stipulated by RoHS in force since FY2006).
• Recycling facilitated by displaying the names of materials used on major plastic parts.

• Low-friction resin with excellent sliding performance incorporated the bearing section of the three-phase axis. Additionally, sliding parts are coated with a long-life grease that contributes preventing oxidization and deterioration.
• Mechanical holding latch has been replaced with a magnetic holding latch equipped with a permanent magnet, thus eliminating the need for oiling mechanical parts and reducing required maintenance time.
• Flame-retardant materials complying with UL94(V-0) are used in various components, such as the protection cover and main circuit terminal tube.
• The connection/test position detection switch and control circuit terminals are equipped with a cover as standard equipment.
• Compliance with protection grade IP3X is available as an option (only F/D models with bushing-type drawers).

Overload capacity increased (switching capacity upgraded from AC3- to AC4-class), thus expanding applicable range.
* Electrical switching endurance is AC3 class.

The operation counter and power fuse melting detector (combination unit only) optional in previous models are now available as standard accessories.