Explosion-Proof Valve Monitor (APL-410N)Limit Switch Box - Ex d IIB T6 Certified | DELCO

✅Certified Explosion-Proof Construction (Ex d IIB T6)
Unlike general-purpose monitors, the APL-410N is designed with a flameproof enclosure. It meets strict Ex d IIB T6 specifications, ensuring that any internal electrical arcing is contained within the housing, eliminating the risk of igniting flammable gases or vapors in the surrounding atmosphere.
✅Robust Die-Cast Aluminum Housing
The enclosure is constructed from thick-walled, precision die-cast aluminum alloy. Finished with a durable polyester powder coating, it offers superior resistance to mechanical impact and chemical corrosion, meeting IP67 ingress protection standards for harsh outdoor use.
✅Tool-Free "Quick-Set" Cam System
The internal splined cam mechanism allows for rapid adjustment of the switch activation angle without the need for tools. The cams are spring-loaded and self-locking, ensuring stable signal settings even under high-vibration conditions typical of high-pressure pipelines.
✅Universal ISO/NAMUR Integration
Featuring a stainless steel NAMUR drive shaft and mounting bracket, this unit is engineered for direct compatibility with ISO 5211 pneumatic actuators. This standardized mounting interface simplifies upgrades and replacements on existing automated valve packages.
✅Flexible Dual Cable Entries
The housing includes two conduit entries (Standard: NPT 1/2" or M20) to facilitate separate wiring for power and signal lines. The angled 8-point terminal strip is designed to maximize working space, preventing wiring errors during field installation.