Block Open Frame 10 kVA Auto-Transformer, 500 V ac Primary, 400 V ac Secondary AT3 10-48/50-4

Block AT3 10-48/50-4 is a 10 kVA open frame auto-transformer designed for industrial and commercial voltage transformation applications. Featuring a primary voltage of 500 V ac and a secondary voltage of 400 V ac, it efficiently steps voltages within these ratings while supporting a frequency range from 50Hz to 60Hz. The transformer is constructed with an open frame design which enhances heat dissipation and enables easy accessibility during installation or maintenance.

This auto-transformer supports multiple mounting options including floor standing, wall mounting, or chassis installation, making it adaptable to varied setups. Screw terminals provide reliable and secure electrical connections. The device is capable of reverse operation, adding flexibility in electrical configurations.

With compact physical dimensions of 267mm length, 150mm width, and 220mm depth, and a gross weight of 20.8 kg, the transformer balances robustness with manageable size. It is rated for operation at temperatures up to 40°C, ensuring dependable operation in typical industrial environments.

The AT3 series auto-transformers are high-efficiency, low-heat loss units manufactured with Block’s vacuum impregnation technique for increased durability. It meets the EN 61558-2-13 safety requirements and is manufactured in Germany to the highest quality standards.

Open frame construction for efficient heat dissipation. Supports floor standing, wall, and chassis mounting configurations. Screw termination type ensures secure electrical connections. Operates reliably across a frequency range of 50 to 60 Hz.

Maximum operating temperature rated at 40°C. Compact size with dimensions of 267mm x 150mm x 220mm. Gross weight is 20.8 kg for solid build quality. Reverse operation capable for versatile electrical applications. Tested to EN 61558-2-13 standard for quality assurance.

Manufactured in Germany with advanced vacuum impregnation process.

This Block Auto-Transformer is ideal for a wide range of industrial, laboratory, construction, manufacturing, and commercial power supply applications where efficient voltage conversion and robust performance are required. The open frame design promotes thermal management and facilitates maintenance activities.

Explore a comprehensive range of transformers and related electrical components in our Electronics & Electricals category to find suitable solutions matching your voltage transformation needs.