Distributor YNTO ITS100 / ITS300 Explosion Proof Limit Switch Box is a robust valve position monitoring device designed for both on-site and remote indication of valve open/close status. Engineered for use in hazardous environments, the ITS100/300 series features an explosion-proof enclosure with a high protection rating of IP67, ensuring reliable performance under harsh industrial conditions.

The limit switch box complies with ISO 5211, NAMUR, and IP protection standards, enabling seamless integration with pneumatic actuators and automated valve systems. Multiple enclosure and switch options—including mechanical and proximity switches—allow users to select the most suitable configuration for their application.

With its durable die-cast aluminum housing, clear visual indication, and flexible wiring options, the ITS100/300 series delivers safe, accurate, and long-lasting valve position feedback for critical industrial operations.

Key Features

• Explosion-proof limit switch box for hazardous area applications
• IP67 protection for dust-tight and waterproof performance
• Suitable for on-site and remote valve position indication
• Dual-axis visual indicator for full-angle position display
• Fully compliant with NAMUR standard for maximum interchangeability
• Anti-drop bolt on the top cover for safe maintenance
• Die-cast aluminum alloy enclosure with polyester coating
• Mechanical switch or proximity switch options available
• Spring-loaded cam adjustment without special tools
• Multiple terminal blocks with up to 8 standard contacts
• Flexible cable entry options, customizable upon request

Technical Specifications

General Information

• Model: ITS100 / ITS300
• Type: Explosion Proof Limit Switch Box
• Function: Valve Position Indication (Open / Close)
• Operation: Rotary Type
• Mounting Standard: ISO 5211 / NAMUR
• Protection Rating: IP67

Electrical Configuration

• Switch Type Options:
  • Mechanical Limit Switch
  • Proximity Switch
• Terminal Block:
  • 8 Standard Contacts (Expandable Options Available)

Mechanical & Enclosure

• Housing Material: Die-Cast Aluminum Alloy
• Surface Coating: Polyester Powder Coating
• Visual Indicator: Two-Dimensional, Full-Angle Display
• Cover Safety: Anti-off bolt design

Cable Entry

• Standard Entry:
  • Double G 3/4″ Cable Entries
• Optional:
  • 4 Cable Entry Custom Configuration
  • Other Thread Standards Available

Environmental Suitability

• Installation Area: Hazardous Areas
• Application: Pneumatic Actuator Valve Automation

Applications

• Oil & Gas Facilities (Onshore & Offshore)
• Petrochemical and Chemical Plants
• Power Plants
• Hazardous Area Process Automation
• Pneumatic Valve Automation Systems
• Industrial Control and Instrumentation