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Fuse-switch disconnectors model RP (RPB/RPC) are designed for passing rated currents, infrequent and non-automatic switching of power circuits without load in 50 Hz electrical power distribution devices. The apparatuses are three-pole disconnectors, where each pole has a fuse connected in series and forms a single device with it on a common panel. The apparatus design uses a knife-type contact system with a visible circuit break. The main parts of the apparatus are contact knives, fuse inserts, contact and hinge stands mounted on a common panel. The required contact pressure is provided by springs on the contact stands and spherical washers on the hinge stands.
Built-in motor drive
No
Design as auxiliary/maintenance switch
No
Version as main switch
No
Design as protective switch
No
Version as emergency switching-off device
No
Number of auxiliary NO contacts
0
Number of auxiliary changeover contacts
0
Number of auxiliary break contacts
0
Number of poles
3
Design
Mounting in distribution board
Maximum rated operational voltage Ue AC
690 В
Rated power in AC-23 operating mode, 400 V
125 кВт
Rated voltage from
400...400 В
Rated short-time withstand current Icw
750 кА
Rated continuous current Iu
250 А
Suitable for front panel mounting
Yes
Suitable for base mounting
No
Suitable for distribution board
Yes
Reversing design
No
With interlock
No
With fuse monitoring
Yes
Ingress protection (IP) of front side
IP00
Ingress protection (NEMA)
4
Product/component type
Load-break switch disconnector
Main electrical circuit connection type
Bolted connection
Conditional rated short-circuit current Iq
20 кА
Colour of control elements
Grey
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