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    >    New 2 westinghouse ZA1-20-30 timing blocks 30 sec delay  
New 2 westinghouse ZA1-20-30 timing blocks 30 sec delay
2 New Westinghouse ZA1-20-30 Timing Blocks 30 Sec Delay!
  * 2 Westinghouse Timing-Blocks
  * The paperwork shows the following voltage inputs for C600: 24-600 VAC with contact ratings noted (email if you need those)
  * My understanding is that a timing block mounts on a relay or contactor and applies a time delay function. The paperwork references DSL9, DSL12, DSL17, and DSL22 relays / contactors.