还是比较纠结.
我刚才在网上又查了一下.
还有个意思是efinite Purpose Contactor
这样我更弄不明白了.
英语介绍,读不太懂.
DP Contactor (Definite Purpose Contactor). DP Contactor is most commonly applied to HVAC as well as elevators, power supplies, food processing, lights, pool, spa, pumps, hoists, cranes, and agriculture applications
不知道和咱说的是不是一回事.