73 Series - Overview
Certifications Available
Enquiry Form
Explosion Proof & Intrinsically Safe Proximity/Limit Switches
The 73 Series Proximity Switches (UNF threads) provide high reliability and versatility in a wide range of applications due to their innovative magnetic technology, which can detect ferrous materials up to 2.5mm away from the switch. The volt-free SPCO/SPDT contact forms in this series allow them to be integrated into various systems.
The 73 Series switches are available in hardwired versions or with wireable options, featuring an integrated junction box/connection head design that simplifies installation in space-constrained environments. Designed with a durable 316L stainless steel housing, these switches operate effectively within a temperature range of -50° to 105°C (-58° to 221°F), ensuring performance in extreme conditions.
The 73 Series is covered by the following hazardous area certifications.
| Explosion Proof: | Zone 1, IECEx & ATEX Exd (Zone 1 & Zone 21) | UL/CSA (Class I, Div 1) |
| Intrinsically Safe: | Zone 0, IECEx & ATEX Exia (Zone 0 & Zone 20) | UL/CSA (Zone 0) |
| Other Regional Approvals Include: | INMETRO, KOSHA, CCCEx & PESO |
Suitable for safety functions up to SIL2 or SIL3, these switches provide reliable and secure operations under rigorous safety standards.
This design ensures that the 73 Series meets stringent global certification requirements while offering reliable and durable solutions for safety-critical applications in various industries.
73 Series Datasheets
Follow this link to the full list of 73 Series Datasheets
Product Subsections
Built for explosive environments, these ATEX Exd/IECEx-certified flameproof switches are safe for Zone 1 and Zone 21 hazardous locations. Their explosion-proof housing ensures safety in areas where flammable gases, vapors, or dust may be present during normal operation.
Designed for intrinsically safe applications, these ATEX/IECEx Zone 0 Ex ia certified switches prevent ignition risks in areas where explosive atmospheres exist continuously or frequently. Their low-energy design makes them the safest choice for high-risk environments.
These ATEX Exd and IECEx dual-certified switches offer maximum explosion protection for Zone 1 and Zone 21 hazardous areas, ensuring compliance with multiple international standards. Ideal for global industries requiring dual certification.
Designed for extreme heat environments, these switches operate reliably in temperatures up to 204°C (400°F). Their Teflon cable options and 316L stainless steel housing ensure durability and performance in high-temperature industrial applications.
This category combines high-temperature resilience with ATEX/IECEx Zone 2 certification, ensuring safe operation in environments with elevated heat and occasional exposure to hazardous gases or vapors. A robust solution for demanding industrial settings.
Designed for easy installation and maintenance, these switches feature a wireable connection head, allowing for field wiring and flexible integration into existing systems. Perfect for applications where quick adjustments and secure connections are essential.
Ideal for standard industrial applications where explosive materials are not a concern. These UL-listed and CSA-certified general-purpose switches offer high reliability and durability for everyday automation and sensing needs.
Engineered for deepwater applications, these switches feature full subsea sealing to prevent water ingress and withstand high-pressure, corrosive environments. Ideal for offshore platforms, oil and gas operations, and underwater robotics.
Certified for use in explosion-proof environments where hazardous gases, vapors, or combustible dust are always present. These switches meet UL/CSA Class I/II Division 1 safety standards, making them ideal for high-risk areas such as refineries and chemical plants.
Designed for environments where hazardous materials may be present occasionally, these switches meet UL/CSA Class I/II Division 2 certifications. They provide explosion-proof protection while offering a cost-effective solution for areas with intermittent exposure to explosive conditions.
