Square D 8501-LT Timer Attachment is a 60-second pneumatic time-delay accessory for Square D 8501 relays. It provides timed contacts with 1 normally open and 1 normally closed contact (1 NO, 1 NC) and is adjustable via a front‑panel knob. Built for industrial use, the assembly carries a NEMA A600 rating, aligning with Square D’s rugged relay accessories. The 8501-LT is listed as discontinued by the manufacturer and is shipped as a pneumatic timer attachment with a 60‑second delay, including a small bag of hardware and an instruction sheet.
