Push Buttons in Series and Parallel Enable Flexible Multi-Station Control Logic

YUEQING, 325605, ZHEJIANG, CHINA-October 27,2026 For multiple push button stations, contacts in series require every contact in the path to be closed before current can flow. Contacts in parallel provide alternative paths, so one closed branch can complete the circuit. This is the electrical basis of an all-of or any-of decision, but the commanded action also depends on contact state, input interpretation and the complete control design. Decide which stations may request an action, which must pe