Eaton AFU0333 66 Conveyor Belt Control Switch - Explosionproof
Part Number: AFU0333 66
Manufacturer
Eaton Crouse-Hinds
Part number
AFU0333 66
Quick Summary
Conveyor Belt Control Switches by Eaton Crouse-Hinds AFU0333 66 deliver fail-safe belt monitoring for hazardous-location conveyors. Maintaining uptime is challenging when switches fail in hazardous zones, risking unplanned shutdowns and safety incidents. This unit meets NEC/CEC standards, IP66 ingress protection, and hazardous-location classifications (Class II, Division 1 & 2; Class III), ensuring safe operation. Designed for quick installation on long conveyors, it helps sustain compliance, reduce maintenance costs, and improve overall equipment effectiveness.
Product Information
Extended Description
AFU0333 66 Eaton Crouse-Hinds: Eaton Crouse-Hinds series AFU conveyor belt control switch, 15A, Two normally open/two normally closed, Feraloy iron, 50 lb total oper force, Double end, 25 lb without switch, (3) 1" hubs
Product Name
Eaton Crouse-Hinds series AFU conveyor belt control switch
Catalog Number
AFU0333 66
Product Length/Depth
18.28 in
Product Height
5.68 in
Product Width
9.5 in
Product Weight
25.6 lb
UPC
782274047096
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
Type
Double end
Weight without switch
25 lb
Total operating force required
50 lb
Contact arrangement
Two normally open, two normally closed
Amperage Rating
15A
Voltage rating
600 Vac
Number of hubs
3
Material
Feraloy iron alloy
Trade size
1"
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Eaton Specification Sheet - AFU0333 66
Feature → Business Impact → Application: 15A at 600 VAC with two normally open and two normally closed contacts provides versatile control logic for conveyor stops and safety interlocks, reducing risk of belt runaways and improving machine safety. Business impact: minimizes unplanned downtime and protects personnel in hazardous zones, delivering measurable downtime reductions and safer operations. Application: ideal for belt conveyors in chemical, oil, and mining facilities where hazardous classifications require robust switchgear and precise contact configurations. Feature → Business Impact → Application: IP66 ingress protection and explosion-proof construction (Hazardous/Classified Locations) ensure reliability in harsh environments, lowering maintenance frequency and extending service life. Application: suitable for outdoor or wash-down areas where dust, moisture, and chemicals are a factor. Feature → Business Impact → Application: Feraloy iron alloy housing and a 50 lb total operating force provide rugged, durable performance with predictable actuation; installation is straightforward for technicians. Application: supports long conveyor runs with repeatable safety engagement. Feature → Business Impact → Application: 3 hubs and a 1" trade size streamline mounting options and compatibility with existing ducting and conduit schemes. Application: simplifies integration into legacy control panels and new builds alike. Feature → Business Impact → Application: UL/NEC/CEC alignment and NEMA ratings 3, 4, 9 offer robust compliance; customers can document conformity for audits and client specifications. Application: reduces certification-related risk during project approvals and commissioning.
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FAQs
AFU0333 66 installs using its double-end housing with three hubs and a 1 inch trade size. Follow the provided installation sheets, mount on a sturdy frame, connect the three hub conduits, and wire the two normally open and two normally closed contacts per your control logic. Ensure all wiring and enclosure entries meet IP66 and NEC/CEC requirements for hazardous areas.
Yes. The AFU0333 66 is rated for 600 VAC and features a two NO / two NC contact arrangement, enabling interlock and interlocking safety logic across multiple drives. For multi-drive systems, wire coordination and proper sequencing are essential to prevent simultaneous energization and to maintain fail-safe behavior during belt jams or stops.
The unit is certified for NEC/CEC compliance and IP66 ingress protection. It supports Hazardous/Classified Locations with NEC Class II Division 1 & 2 and Class III classifications. NEMA ratings 3, 4, and 9 indicate rugged protection against dust, water, and corrosion, making it suitable for outdoor or harsh industrial settings.
Key specs include 18.28 inch length, 5.68 inch height, 9.5 inch width, weight around 25.6 pounds (25 lb without switch), 3 hubs, and 1 inch trade size. It is a double-end type switch designed for straightforward mounting to conveyor frames and compatible with standard conduit and enclosure interfaces.
With IP66 protection and explosion-proof construction, maintenance cycles extend due to reduced corrosion and environmental wear. The 15A, 600 VAC rating supports reliable belt control with low downtime risk, reducing unplanned shutdowns and safety incidents. The robust design also lowers replacement and labor costs during plant-scale installations.