To control cost
(and almost anything else)
think inside the box

OPERATION: Input voltage must be applied prior to and during timing. The output (relay or solid state) is de-energized. When the initiate switch S1 closes momentarily or maintained, the output energizes and the time delay begins. Upon completion of the delay, the output de-energizes.
RESET: Reclosing S1 resets the time delay and restarts timing. Removing input voltage resets the time delay and output.
Function can be applied to these Series:(Click to View Data Sheet) HRPS, HRPU, KRPS, KSPS, KSPU, NHPS, NHPU,

OPERATION: Similar to retriggerable single shot function PSD above except, when input voltage is applied, the output (relay or solid state) immediately energizes and timing begins. At the end of the time delay, the output de-energizes. The unit will timeout as long as S1 remains open or closed for a full time delay period.
RESET: During timing, reclosing S1 resets and restarts the time delay and the output remains energized. After timeout, reclosing S1 starts a new operation. Removing input voltage resets the time delay and the output.
Function can be applied to these Series:(Click to View Data Sheet) HRPS, HRPU, KRPS, KSPS, KSPU, NHPS, NHPU,

V = Voltage    NO = Normally Open Contact    R = Reset 
   NC = Normally Closed Contact    TD = Time Delay   
t = Incomplete Time Delay     S1 = Initiate Switch