H.A.K. Pneumatic Visual Position Indicator for Rotary Actuator NPT 2-1/2" (Limit Switch Box)
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Description
The APL‑210N is a rugged, weatherproof visual position indicator and limit switch box designed for rotary pneumatic actuators. It features a bolted visual indicator dome and up to two SPDT mechanical limit switches, providing reliable OPEN/CLOSED feedback along with visual confirmation. The unit mounts easily to NAMUR-standard interfaces and uses a spline cam adjustment that requires no tools for setup — simply lift and rotate for precise alignment.
Construction/Specification
| Mounting Thread/Cable Entry | 2-1/2" NPT (dual entries) |
| Housing | Aluminum die-cast, IP67 (NEMA 4/4X), black polyester finish |
| Actuation Type | Mechanical visual dome (90° rotation; red = CLOSED, yellow = OPEN) |
| Switches | 2 × SPDT mechanical limit switches (optional proximity sensors) |
| Cable Entries | Two 1/2" NPT (options for PG13.5, M20) |
| Temperature Range | –20 °C to +80 °C |
| Mounting Interface | NAMUR-compliant stainless steel shaft and bracket |