Instruction: Evaluate each product title in the given list, assess its relevance to the given query, and then arrange the products in descending order of relevance, with the most relevant product at the top of the ranked list.

Input:
Query: 100 amps automatic transfer switch without enclosure
Product list:
A: 110V Dual Power Automatic Transfer Switch Dual Power Generator Changeover Switch 50HZ/60HZ (2P 63A Blue)
B: Reliance Controls TCA0606D Panel/Link Transfer Panel (60A/60A)
Answer: B,A