Description
Electro Mechanica RBK Series NH Fuse Switch Disconnector
APPLICATIONS
RBK fuse switch disconnectors are designed for distribution of electricity and protection of electrical equipment against short-circuits and overloads with industrial fuse links. They are conforming to EN 60947-1, EN 60947-3, IEC 60947-1, IEC 60947-3 standards. They are intended for installation in low voltage distribution boards, cable and metering cabinets.
CONSTRUCTION
– \thermoplastic parts of RBK fuse switch disconnectors are made of fibre glass strengthened polyamide with halogen free flame retardant added and have highest possible flammability class – V0,
– RBK fuse switch disconnectors consist of following parts:
– three pole main base with spring-loaded contacts designed for connection of circular or sector-shaped conductors,
conductors with lug terminals or bars,
– removable cover with fuse links,
– arc chutes with steel deionization plates over top contacts,
– silver plated contacts providing low power loss.
MOUNTING
– on mounting plate
– RBK 00 pro, RBK 1 pro, RBK 2 pro, RBK 3,
– on double DIN rail
– RBK 00 pro,
– on to busbar systems:
– 60 mm busbar system,
– RBK 00 pro-S, RBK 1pro-S, RBK 2pro-S – installation on to bysbar system with hooked clamps,
– 100 mm busbar system,
– RBK 2-S, RBK 1 pro-S – installation on to bus bar system with hooked clamps.
OPERATING CONDITIONS
– to be installed in the room free of any dust, aggressive or explosive gases,
– altitude up to 2000 meters above sea level,
– outdoor – in cabinets with protection degree > IP 34,
– ambient temperature from -25 °C to +55 °C,
– relative humidity of the air should not be higher than 50% at temperature of +40°.
FUNCTIONALITY:
– making and breaking operations should be done with determined movement,
– possible connection of circular or sector-shaped conductors with bare ends (V-terminals, 2V-terminals) or conductors
with lug terminals (screw terminals),
– voltage test performed through test holes in fuse link cover,
– fuse links state monitoring.
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