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Power Assemblies and Controllers

Circuit Protection

Industrial Control Auto Transformers

Meth Srl offers a high quality range of three-phase industrial control auto transformers from 3KVA - 80KVA. They consist of a smaller, more compact construction compared to the same isolating transformers.

 

AT3TH-UL

The AT3TH-UL low voltage three-phase industrial control auto transformers are UL-CSA recognised up to 250kVA. The three-phase auto transformers are an electrical machine with one single common wiring where primary and secondary are not galvanically separated and have smaller construction compared to the same isolating transformers.

Meth AT3TH-UL Three-Phase Auto Transformers by GD Rectifiers

 

Three-phase auto transformers are used for speed control in fans starting big three-phase electric motors.

Customised three-phase auto transformers are available on request, catering to customer specification electrical sizing.

AT3TH-UL Datasheet

 

Standards

-       CEI-EN 61558; p.2-13

-       UL 5058 1-2 up to 345A (generally equivalent to 250kVA of nominal power and core power up to 80kVA)

 

Certifications

-       UL – File E169331 vol.1 sec.2

 

AT3TH-UL Technical Data

Part No.        Design Rating (KVA)  Insulation Class   Dimensions (mm)          Weight (Kg)  Losses (W)      Efficiency (%)  Ucc (%)  Inrush Current (x in)  
A B C D E no-load   load    total 
AT3TH-UL 3 H 300 170 315 250 110 30 60 210 270 91.7 5.8 20
5 H 300 190 315 250 140 40 85 280 365 93.2 5.2 18
7.5 H 360 200 356 325 150 62 115 330 445 94.4 4.6 17
10 H 360 230 356 325 180 80 125 350 475 95.4 4.2 17
15 H 420 250 415 375 170 91 125 540 665 95.7 4.2 18
20 H 420 270 415 375 200 135 205 500 705 96.6 3.7 18
25 H 480 300 445 425 190 145 190 710 900 96.5 3.5 18
30 H 480 320 445 425 210 155 210 760 970 96.8 3.4 17
35 H 480 340 445 425 230 180 235 860 1095 96.9 3.2 17
40 H 480 350 445 425 240 190 250 970 1220 97 3.2 17
45 H 600 350 600 540 220 200 250 1430 1680 96.5 4.8 10
50 H 600 360 600 540 230 220 270 1480 1750 96.6 5.5 9
60 H 600 380 600 540 250 250 320 1565 1885 97 4.7 9
70 H 600 390 600 540 260 270 340 1830 2170 97 4.9 9
80 H 600 410 600 540 280 305 390 1950 2340 97.2 4.6 9

 

For further information on Industrial control auto transformers or to discuss your requirements, please call us on: 01444 243 452 or email: .(JavaScript must be enabled to view this email address). 

Meth Srl

Meth Srl is a leading manufacturer of standard and customised single-phase and three-phase transformers used in industrial, automation and marine applications. Based in Italy, Meth Srl is part of the Meth Transformers Group alongside the Meth Kft (Hungary) division that specialises in single-phase transformers.

Further information:

You can find further information on Meth Srl using the following links:

Tel: 01444 243 452

Fax: 01444 870 722

Email: enquiries@gdrectifiers.co.uk