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D44AT2 — Three-phase autotransformer 400 → 230 V

Three-phase autotransformer 400 → 230 V. This family is designed for voltage adaptation without galvanic isolation in a three-phase configuration.

Electrical configuration: input 400 V, output 230 V, range 1 a 400 kVA. Final selection should consider actual installation and protection conditions.

Technical data

Input voltage
400 V

Output voltage
230 V

Frequency
50/60 Hz

Thermal class
<100 kVA: F (140ºC) / Ta=40ºC - ≥100 kVA: H (165ºC) / Ta=40ºC

Degree of protection
IP-23

Cooling
AN

Protection against electric shock
Class I

Test voltage
4,5 KV

Vector group
YN0

Relevant parameters
Reversible: 400 / 230 V o 230 / 400 V

Application

Voltage adaptation without galvanic isolation

Three-phase autotransformer 400 → 230 V. This family is designed for voltage adaptation without galvanic isolation in a three-phase configuration.

Electrical configuration: input 400 V, output 230 V, range 1 a 400 kVA. Final selection should consider actual installation and protection conditions.

References and dimensions

Reference	Power	Input voltage	Output voltage	A × B × C	Weight
310D44AT2	1 kVA	400 V	230 V	245 × 210 × 265 mm	9 kg
320D44AT2	2 kVA	400 V	230 V	245 × 210 × 265 mm	14 kg
330D44AT2	15 kVA	400 V	230 V	287 × 226 × 340 mm	15 kg
340D44AT2	4 kVA	400 V	230 V	287 × 226 × 340 mm	18 kg
350D44AT2	5 kVA	400 V	230 V	287 × 226 × 340 mm	20 kg
363D44AT2	6.3 kVA	400 V	230 V	287 × 226 × 340 mm	27 kg
380D44AT2	8 kVA	400 V	230 V	345 × 310 × 377 mm	30 kg
410D44AT2	10 kVA	400 V	230 V	345 × 310 × 377 mm	35 kg
413D44AT2	13 kVA	400 V	230 V	345 × 310 × 377 mm	44 kg
416D44AT2	16 kVA	400 V	230 V	406 × 310 × 460 mm	51 kg
420D44AT2	20 kVA	400 V	230 V	406 × 310 × 460 mm	57 kg
425D44AT2	25 kVA	400 V	230 V	477 × 390 × 500 mm	77 kg
431D44AT2	31.5 kVA	400 V	230 V	477 × 390 × 500 mm	85 kg
440D44AT2	40 kVA	400 V	230 V	575 × 460 × 606 mm	114 kg
450D44AT2	50 kVA	400 V	230 V	575 × 460 × 606 mm	130 kg
463D44AT2	63 kVA	400 V	230 V	575 × 460 × 606 mm	161 kg
480D44AT2	80 kVA	400 V	230 V	575 × 460 × 606 mm	183 kg
510D44AT2	100 kVA	400 V	230 V	727 × 600 × 810 mm	230 kg
513D44AT2	130 kVA	400 V	230 V	727 × 600 × 810 mm	254 kg
516D44AT2	160 kVA	400 V	230 V	727 × 600 × 810 mm	315 kg
520D44AT2	200 kVA	400 V	230 V	810 × 780 × 1105 mm	415 kg
525D44AT2	250 kVA	400 V	230 V	810 × 780 × 1105 mm	475 kg
531D44AT2	315 kVA	400 V	230 V	1110 × 980 × 1240 mm	615 kg
540D44AT2	400 kVA	400 V	230 V	1110 × 980 × 1240 mm	715 kg

Dimension reference

Dimensions A, B, C, d and e in the table correspond to those shown in this image.

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