
7
4.2 Electrical features
- Operating voltage and nominal frequency: U
n
/ f , listed on the label
- Design voltage: U
n
+ 10% (440 V for 400 V equipment)
- Nominal power and distribution of steps: Q
n
and make-up, listed on the label
- Total loss: Less than 0.5 W/kvar
- Residual discharge voltage: 75 V after 3 minutes
- Overload capacity: 1.3 I
n
in all items
- Contactor operating voltage: U
aux
, listed on the label.
NOTE: In general, use a 1.5 mm
2
cable to supply external power.
If “Internal”, is marked, this circuit does not require external power.
-
Current transformer Input: 5 A, (I
n
/5A transformer)
NOTE: Minimum cable section 2.5 mm
2
.
- Compliance with Standards UNE EN 61921
- Capacitor characteristics:
Capacity tolerance: ± 10%
Insulation level: 3 kV /50 Hz
Impulse test: 15 kV , 1.2/50 µs type wave
Protection elements: Internal fuses and over-pressure system
Compliance with Standards UNE EN 60831
4.3 Environmental Characteristics
- Capacitor max. temperature Category C in accordance with EN 60831-1
Maximum for 1h 50 ºC
24h average 40 ºC
Annual average 30 ºC
- Ventilation For T
amb
exterior > 30 ºC, the cabinet requires
ventilation
- Maximum relative humidity: 80%
- Altitude: 1000 m (For higher altitudes, always maintain ventilation)
4.4 Mechanical characteristics
- Protection degree: Marked on the label:
- Paint Oven dried epoxy type
- Standard colours RAL 7035 Grey ; RAL 3005 Maroon
4.5 External dimensions and weights.
Fig. 4-2 .- Dimensions
Model
Max.
Weight
Width
height (*)
Depth
OPTIM SC8
OPTIM SC12
OPTIM SC16
1180
1930
2360
1805
1805
1805
460
460
460
305
585
605
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