APL510N Explosion Proof Limit Switch Box

Product Description

APL510N Explosion Proof Limit Switch Box is a high-performance rotary position monitoring device designed to provide accurate valve position feedback in hazardous environments. Engineered to integrate seamlessly with pneumatic actuators and valves, the APL 510N supports various internal switches or proximity sensors for reliable open/close indication.

Housed in a robust ATEX-certified aluminium enclosure, the APL510N ensures safe operation in explosive gas and dust atmospheres. It is particularly suitable for small to medium pneumatic actuators and offers durable mechanical switching with a long operational life of up to 100,000 cycles.

The switch box features a high-visibility beacon indicator, stainless steel NAMUR mounting bracket, and hermetically sealed internal components, making it an ideal solution for harsh industrial environments where safety, reliability, and compliance are critical.

Key Features

• Explosion-proof rotary position monitoring limit switch box

• ATEX certified for gas and dust hazardous areas

• IP66 enclosure for superior environmental protection

• High-visibility beacon optical position indicator

• Robust aluminium housing with powder-coated finish

• Stainless steel shaft and NAMUR mounting bracket

• Two (2) SPDT mechanical micro switches

• Two (2) M20 cable entries

• Hermetically sealed proximity switch compatibility

• Simple spring-loaded switch cam adjustment

• Easy installation and maintenance

• Long mechanical life up to 100,000 switching cycles

Technical Specifications

General Information

• Model: APL 510N

• Type: Explosion Proof Limit Switch Box

• Function: Valve Position Monitoring (Open / Close)

• Operation: Rotary Type

• Mounting Standard: NAMUR

• Applicable Actuators: Pneumatic Actuators (Small to Medium Size)

Electrical Configuration

• Switch Type: Mechanical Micro Switch

• Switch Rating:

  • 2 × SPDT (Single Pole Double Throw)

• Cable Entries:

  • 2 × M20

Enclosure & Materials

• Enclosure Material: Aluminium (Powder Coated)

• Shaft & Bracket: Stainless Steel

• Ingress Protection: IP66

Certification & Hazardous Area Rating

• ATEX Gas Rating:

  • ATEX II 2G Ex d IIC T6 Gb

• ATEX Dust Rating:

  • ATEX II 2D Ex tb IIIC T85°C Db IP6X

• Suitable for: ATEX Gas & Dust Hazardous Areas

Applications

• Oil & Gas Production and Processing Facilities

• Petrochemical Plants

• Power Plants

• Chemical Industries

• Offshore Platforms

• Hazardous Area Valve Automation Systems

• Pneumatic Actuator Position Feedback