Product Description
AT3 Series
AutotransformerFixing rail, PRI 3 x 200/208 Vac - 3 x 690 Vac, SEC 3 x 400 Vac, 2,000 - 250,000 VA
AT3 Series
AutotransformerFixing rail, PRI 3 x 200/208 Vac - 3 x 690 Vac, SEC 3 x 400 Vac, 2,000 - 250,000 VA
Description
- Enlarged mounting bracket for easy installation from above
- Integrated crane eyes
- Multi-functional mounting brackets with 12 slots
- Fixed, contact protected screw connection terminals complying with UVV BGV A3
- Very good corrosion protection and low noise thanks to BLOCK IMPEX vacuum impregnation
- Patented assembly technology to lower heat losses
- Very high efficiency
- Reverse mode possible
Prose
Autotransformers
Autotransformers are the efficient and ideal solution for minor voltage adjustments. Compact designs can be provided depending on the voltage difference. Autotransformers feature lower losses compared with isolating transformers with the same power rating. The transformers without galvanic isolation also feature inverse operation. BLOCK's standard range features power outputs of between 150 VA and 250,000 VA
- Efficient solution for minor voltage adjustments
- Inverse operation possible
- Power output: 250 VA to 250,000 VA
Applications
Autotransformer for adjustment of the voltage on the input and output sides with no requirement for electrical isolation.
Specifications
- Rated Power
2,000 - 250,000 VA
- Efficiency
Up to 98 %
- Maximum Ambient Temperature
40 °C
- Insulation
Class F
- Degree of Protection
IP 00
Optionally adapted package for higher degrees of protection
- Rated Output Voltage
3 x 400 Vac
- Rated Input Voltage
3 x 200/208 - 3 x 690 Vac
- Standards
VDE 0570 Teil 2-13, DIN EN 61558-2-13, EN 61558-2-13, IEC 61558-2-13
- Approvals
UL 5085-1/-2, CSA 22.2 No.66
Specifications vary between configurations. Refer to the Configurations below for more information and links to the manufacturer's website.