What is a vacuum circuit breaker?

They must make and break all currents within the scope of their ratings, from small inductive and capacitive load currents up to the short-circuit current, regardless of earth faults, phase opposition, etc. Outdoor vacuum circuit-breakers (OVCB) have to face even higher demands, with the additional influence of weather conditions.

What are pvgardtm solar circuit breakers?

PVGardTM solar circuit breakers are part of a product family that combines a disconnect with overcurrent protection in one device to protect photovoltaic systems. PVGard breakers can also be used as a disconnect means in combiner box and inverter applications to save space.

Why should you choose a live tank outdoor vacuum circuit breaker?

With our Live-Tank outdoor vacuum circuit-breakers, we provide reliable quality for all your medium-voltage network needs Circuit-breakers form a most vital part of your medium-voltage network.

What is a molded-case circuit breaker?

Ideal for protecting combiners, switchgears and inverters on the DC side, the new IEC compliant SACE Tmax PV molded-case circuit-breakers range now cover capacities up to 1500V DC and 100 to 250A rated operating current.

What is a SACE Tmax circuit breaker?

For photovoltaic systems where use of string inverters is prevalent, the SACE Tmax PV range now proposes a series of circuit-breakers for applications up to 800V AC type-approved to UL 489 specifications and compliant with IEC 60947-2 Standard. These circuit-breakers are able to break short-circuit current up to 32kA, depending on their size.

Are PV circuit breakers rated for 75°C conductors?

The PV circuit breakers and molded case switch terminals listed in this document and catalog # CA08100005E are rated for 75°C conductors. Fuse holders, blocks and disconnects may be rated for 75°C or less, depending on the type of terminal.