Industrial APL-312N Valve Position Indicator

The APL-312N Limit Switch Box Valve Position Indicator is a rugged, IP67-rated enclosure designed to mount on quarter-turn actuators, providing a clear Open/Closed valve position indication alongside four electrical feedback circuits rated up to 250 V and protected from dust and water ingress. Inside the die-cast aluminum housing, four SPDT mechanical micro switches are installed (each with a common COM and normally open NO and normally closed NC contacts), enabling independent signaling, interlock logic, remote alarms, and fault monitoring. Electrical ratings follow standard values: 250 V AC up to 16 A, 125 V AC up to 16 A, 250 V DC up to 0.3 A, 125 V DC up to 0.6 A, and 30 V DC up to 10 A, making it suitable for common control circuits in industrial automation. This model belongs to the APL 3N series of limit switch boxes designed for valve position monitoring on rotary actuators, combining robust construction with a dedicated Open/Closed position indicator to simplify integration into control panels and interlock schemes.