MV AIR INSULATED SWITCHBOARD - BY ABB
UniSec SBC (Circuit-Breaker With Switch-Disconnector)
Unit available in the 750 mm width.
The SBC type unit is made for control and protection of distribution lines, networks, motors, transformers, capacitor banks, etc. The unit can be equipped with a vacuum or SF gas circuit-breaker. The circuit-breaker is mounted on a rail and fixed to the busbars. A 3-position switch-disconnector fitted with an earthing switch is provided for the isolating operations, mounted between the circuit-breaker and the busbars.
The door is mechanically interlocked with the switch- disconnector earthing position to ensure personnel safety. The unit is designed to be equipped with CTs and VTs (dimensions to DIN standards, see main components). Alternatively, a circuit-breaker with integrated current sensor and relay is available.
Technical data SBC
|
Panel width |
Weight (kg) |
|
|
mm (*) |
H = 1700 mm |
H = 2000 mm |
|
750 |
335 (1) |
355 (1) |
NB :
(*) Consult chap. 9 for the overall dimensions
|
Un |
Ir |
Ik |
IkAp(*) |
|
kV |
A |
kA |
kAp |
|
12 |
630/800 |
12.5/16/20 (1)/25 (2) (3s) |
31.5/40/50 (1)/63 |
|
17.5 |
630/800 |
12.5/16/20 (1) (3s) |
31.5/40/50 (1) |
|
24 |
630 |
12.5/16/20 (1) (3s) |
31.5/40/50 (1) |
NB :
(*) Making capacity of the earthing switch downstream EF 230
(1) Contact ABB for 21 kA
(2) 25 kA (2s)
