Allen-Bradley 1496-N1 Pneumatic Timer Assembly

The Allen-Bradley 1496‑N1 Pneumatic Timer Assembly is a complete open-type timing unit that combines a pneumatic timing mechanism with a built-in contact block for industrial control circuits. It provides a defined delay in electrical circuits powered up to 600 V AC and up to 10 A for non-inductive loads, with a 1 normally open (NO) and 1 normally closed (NC) contact that switch as the timer times out. The unit offers a timing range of 1/20 to 180 seconds, enabling short to moderate delays in sequencing tasks, and is designed for open installation in rugged industrial environments. The 1496‑N1 is the complete timing unit described in legacy Allen-Bradley literature as the “complete timing unit (with standard contact unit),” suitable for integration into Rockwell Automation control panels and paired with other 1496 timing components. Historically, listings from distributors indicate the 1496‑N1 has been discontinued by the manufacturer, and remaining stock is typically found through surplus or used channels. This timer assembly is commonly employed to implement delayed start or release sequences in equipment such as conveyors, material handling lines, machine guards, and interlock circuits where a pneumatic timer provides reliable delay without relying on solid-state timing.