Slim and robust unit body resists twisting, warping and impact

Downsized internal unit, increased case thickness
The internal unit was redesigned and downsized extensively.
The internal unit was downsized to less than 40% (volume ratio) as compared to the conventional model while achieving higher performance.
The case structure was also optimized and offers high rigidity without any change in external dimensions.
The SF4D series provides high performance and high reliability while maintaining the installation and wiring compatibility with the previous models.