Eaton AFA20 Conveyor Belt Alignment Switch - IP66
Part Number: AFA20
Quick Summary
The AFA20 Conveyor Belt Alignment Switch from Eaton detects belt misalignment to protect conveyors and downstream equipment. Belt drift can trigger unplanned downtime, product damage, and safety risks; this switch provides a fast, reliable alert to stop the line before damage occurs. It is certified for Hazardous/Classified Locations with IP66 ingress protection and NEC/CEC compliance, supported by UL listings for added confidence in harsh environments. Designed for seamless integration into existing control schemes, it supports 15A at 600 Vac with two normally open contacts, making safety upgrades straightforward without extensive rework. This combination of rugged construction and proven approvals translates to lower lifecycle cost and higher line availability for industrial plants.
Product Information
Extended Description
AFA20 Eaton Crouse-Hinds: Eaton Crouse-Hinds series AFA conveyor belt alignment switch, 15A, Two normally open, Feraloy iron alloy, 600 Vac
Product Name
Eaton Crouse-Hinds series AFA conveyor belt alignment switch
Catalog Number
AFA20
Product Length/Depth
5.68 in
Product Height
11.84 in
Product Width
4.92 in
Product Weight
23.22 lb
UPC
782274694795
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class II, Division 1 Class II, Division 2 Class III
NEMA Rating
3 4 9
Ingress protection (IP) ratings
IP66
Contact arrangement
Two normally open
Material
Feraloy iron alloy
Amperage Rating
15A
Voltage rating
600 Vac
AFA and AFAX Series Explosionproof Conveyor Belt Alignment Switches catalog page
AFA and AFAX Explosionproof Conveyor Belt Alignment Switches UL certification
AFA and AFAX Explosionproof Conveyor Belt Alignment Switches UL certification
IF 959 - Conveyor Belt Alignment Switch
Eaton Specification Sheet - AFA20
Feature: Explosion-proof enclosure and Feraloy iron alloy construction. Business Impact: Delivers robust protection in demanding environments, reducing wear, corrosion, and maintenance cycles. Application: Ideal for mining, chemical processing, and other hazardous-location conveyor lines. Feature: Two normally open contacts rated at 15A, 600 Vac. Business Impact: Enables reliable signal trips to safety interlocks and programmable logic, improving control reliability and uptime. Application: Works with standard safety circuits and emergency-stop schemes. Feature: IP66 protection and certifications for hazardous locations (NEC/CEC, Class II/Division 1 & 2, Class III, UL listings). Business Impact: Provides industry-leading compliance and longevity in dusty, wet, and explosive atmospheres. Application: Suitable for a wide range of industrial installations in harsh environments. Feature: NEMA ratings 3, 4, 9 and compatible with Crouse-Hinds installation practices. Business Impact: Enhances durability and ease of retrofit, reducing installation risk and lifecycle costs. Application: Retrofit projects and new builds where strict weather and location classifications apply. Feature: Compatible with standard CH control enclosures and installation sheets (IF 959). Business Impact: Simplifies wiring, reduces commissioning time, and accelerates safety upgrades. Application: Quick integration into existing conveyor safety cabinets and control panels. Feature: Material and construction optimized for uptime in hazardous locations. Business Impact: Reduces maintenance frequency andextends service life, delivering lower total cost of ownership. Application: Heavy industry conveyors in mining, chemical plants, and processing facilities.
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FAQs
Install the AFA20 in approved explosion-proof enclosures or directly in hazardous locations as permitted, following the IF 959 instruction sheet. Use two normally open contacts wired to safety interlocks or PLC inputs, and ensure the enclosure is IP66-rated to seal against dust and water. Plan grounding and shielded wiring to minimize interference in harsh settings.
The AFA20 is rated for 15A at 600 Vac with two normally open contacts. It uses a Feraloy iron alloy enclosure for rugged durability and carries IP66 protection, plus NEC/CEC compliance and Class II, Division 1 & 2, and Class III ratings. These specs support reliable signaling in hazardous environments while allowing integration with standard control circuits.
Yes. The AFA20 is designed for hazardous/classified locations and explosion-proof service, making it well-suited for mining, chemical processing, and other heavy industries. Its IP66 rating and UL/NEC/CEC certifications help ensure safe operation under dust, moisture, and arcing conditions typical of these facilities.
It carries NEC/CEC standards, Class II Division 1 and 2, and Class III ratings, along with UL certifications for explosion-proof use. NEMA ratings 3, 4, and 9 further confirm suitability for harsh environments. Area classification as Hazardous/Classified Locations ensures alignment with regulatory and safety requirements.
The device provides long service life with rugged construction and proven certifications, reducing unscheduled downtime and maintenance costs. Quick retrofit capability and straightforward wiring shorten commissioning time, delivering faster access to safety upgrades and a lower total cost of ownership over the conveyor system’s lifecycle.