If your load requires a neutral conductor (common in commercial buildings with 120V lighting), a is inappropriate because the secondary is delta. You would need a YNy0 or a zig-zag grounding transformer.
To achieve the 0° shift:
The most common engineering question is: "Should I use a YD0 or a DY11?" yd0 transformer
Need a quote on a custom YD0 transformer? Contact our engineering team to discuss your voltage ratio, impedance, and harmonic mitigation requirements. If your load requires a neutral conductor (common