Flameproof Limit Switch Fork Lever

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Flameproof Limit Switch Fork Lever Specification

Usage & Applications
Industrial automation, hazardous areas, position monitoring in flameproof zones

Weight
Approx. 700g

Life Span
Mechanical life: Over 1 million operations

Mounting Type
Panel/Surface Mount

IP Rating
IP65

Material Type
Die Cast Aluminium Body

Features
Flameproof enclosure, positive opening contacts, robust construction, fork lever actuator, explosion proof for Zone 1 & 2

Color
Grey

Voltage Range
250V AC / 24V DC

Dimension (L*W*H)
Approx. 160mm x 60mm x 55mm

Switching Capacity
5A @ 250V AC/DC

Ambient Temperature
-20°C to +60°C

Corrosion Resistance
High grade protective coating

Interlocking Mechanism
Spring return to original position

Cable Entry Size
3/4" ET (standard)

Operating Force
Approx. 1.5 kgf

Enclosure Protection
Weatherproof & flameproof enclosure

Actuator Type
Fork Lever

Contact Configuration
1 NO + 1 NC

About Flameproof Limit Switch Fork Lever

Sai Industries make Flameproof Weatherproof Limit Switch FORK LEVER TYPE - single chamber made in die cast Aluminium Alloy LM6 Suitable for Zone 1 & 2, gas group IIA & IIB, Temp Class T6 with IP65 ingress protection with all stainless steel hardware and painted with epoxy based powder coated structured paint shade 631 of IS:5 certified by CIMFR + PESO as per Cat # SAI/LS/1053 with 1no. 3/4" ET Cable Entries at bottom but without Cable Glands and Stopping Plugs.

Robust Flameproof Protection

Designed for hazardous and explosive environments, this limit switch features an IP65-rated flameproof enclosure, safeguarding the internal mechanism from dust, water, and ignition sources. Its explosion-proof certification for Zone 1 & 2 ensures optimal safety in demanding industrial sectors such as oil, gas, and chemicals. The high-grade protective coating provides corrosion resistance, prolonging switch life in challenging conditions.

Reliable Operation & Long Service Life

Engineered with a fork lever actuator and spring return mechanism, this limit switch guarantees precise and consistent switching. Supporting up to 5A at 250V AC/DC and operating between -20C to +60C, its ideal for continuous monitoring and control. Its mechanical construction is built for over 1 million operations, ensuring prolonged functionality even in rigorous, high-frequency use.

Easy Installation & Versatile Mounting

The compact design and standard 3/4" ET cable entry facilitate straightforward installation in control panels or on machinery surfaces. With dimensions of approximately 160mm x 60mm x 55mm and a weight of 700g, the limit switch can be integrated seamlessly into existing industrial automation setups, making it a practical choice for manufacturers and system integrators.

FAQs of Flameproof Limit Switch Fork Lever:

Q: How does the Flameproof Limit Switch Fork Lever ensure safety in hazardous areas?

A: This limit switch is certified with a flameproof enclosure (IP65), making it suitable for explosive environments such as Zones 1 & 2. The die-cast aluminium body and high-grade protective coating provide exceptional resistance against corrosion and physical impacts, preventing accidental ignition and ensuring the safety of operations in hazardous locations.

Q: What types of applications are ideal for this limit switch?

A: It is designed for industrial automation, hazardous and flameproof zones, as well as position monitoring in environments exposed to explosive gases or dust. Typical applications include petrochemical plants, refineries, and other manufacturing setups requiring robust and reliable position feedback under strict safety standards.

Q: When should I replace the limit switch?

A: With a mechanical life rated for over one million operations, the switch typically requires replacement only after extended periods of intensive use or if signs of physical damage or operational failure arise. Regular inspection in high-frequency applications helps ensure ongoing reliability.

Q: Where can the limit switch be mounted?

A: The switch is suitable for both panel and surface mounting, offering flexibility in installation. Its compact dimensions and standard 3/4" ET cable entry enable easy integration within control panels or directly on machinery in industrial settings.

Q: What is the process for wiring and installing the switch?

A: Wiring is simplified by the clear contact configuration (1 NO + 1 NC) and standard cable entry. Maintain power disconnection before installation, then follow electrical diagrams specific to your application. The mounting process involves securing the die-cast housing onto a panel or surface and connecting the cables as per the guidelines.

Q: How does the interlocking spring-return mechanism benefit operations?

A: The spring-return mechanism automatically resets the actuator to its original position after activation, promoting consistent and reliable switching action. This design minimizes manual intervention, reduces operational downtime, and enhances safety by ensuring the switch is always ready for the next detection cycle.

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