418E77ETF — Three-phase voltage stabilizer 275–450 V → 400 V ±2%
Automatic mains-voltage stabilisation
Technical specifications
Input voltage
275-450 V
275-450 V
Output voltage
400 V
400 V
Power
18 kVA
18 kVA
Frequency
50/60 Hz
50/60 Hz
Thermal class
F (140ºC) / Ta=40ºC
F (140ºC) / Ta=40ºC
Degree of protection
IP-23
IP-23
Cooling
AN
AN
Protection against electric shock
Class I
Class I
Test voltage
4,5 KV
4,5 KV
Vector group
Dyn11
Dyn11
Standards
IEC-UNE-EN 61558, CE UL 5085-1 / UL 5085-2
IEC-UNE-EN 61558, CE UL 5085-1 / UL 5085-2
Dimensions and weight
| A | 600 |
|---|---|
| B | 450 |
| C | 1150 |
| d | |
| e | |
| Enclosure | - |
| Weight | 120 |
| EAN | 8435012216774 |
Dimension reference
Dimensions A, B, C, d and e in the table correspond to those shown in this image.

Application
Automatic mains-voltage stabilisation
Three-phase voltage stabilizer 275–450 V → 400 V ±2%. This family is designed for automatic mains-voltage stabilisation in a three-phase configuration.
Electrical configuration: input 275-450 V, output 400 V, range 4 a 320 kVA. Final selection should consider actual installation and protection conditions.
