The ATC 407 series in now obsolete (October 2012). Timers that can be used in its' place are the ATC 339 series. The 339 is FM approved and it has both On-Delay and Interval operations. SSAC TDR TRU and TRDU are multi-function TDR's with On-Delay, Off-Delay and Interval functions and 8 and 11 pin bases. Or the ATC Diversified TBU series TDR with 11 pins can be wired in On-delay, off-delay and interval modes.
The Automatic Timing and Control ( ATC ) 407 is a 1/16 DIN style timer which can be panel mounted or plug-in using an 8-pin octal mounting socket. (Use p/n 8258500 for surface/DIN rail socket). The ATC 407 TDR is a multi-mode timer with on-delay, off-delay and Interval timing with a delayed relay. The ATC 407B offers Timing Ranges from 1 Sec. to 10 Hrs. and Universal Voltage Operation, 24vdc and 24-240 vac. The contacts are rated 10 amps and are DPDT. This ATC TDR has UL, CSA, and CE approvals. The ATC p/n is 407C100F3X.
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