AFA20 Explosionproof Conveyor Belt Alignment Switch
AFA20 is a verified explosionproof conveyor belt alignment switch in the Eaton product range. Use the official stock code and the current manufacturer data when requesting a quotation or confirming a replacement.
AFA20 Explosionproof Conveyor Belt Alignment Switch
The AFA20 is listed in the official Eaton product programme as a explosionproof conveyor belt alignment switch. This page is intended to help engineers and purchasing teams identify the correct stock code, understand its functional role and collect the information needed for a technically complete quotation.
A model name alone is not sufficient for final selection. Confirm the complete order code, switching or sensing action, contact arrangement, cable entries, actuator geometry, reset method, operating temperature, enclosure protection and any hazardous-area certificate for the exact delivered version.
Verified product information
| Contacts | 2 normally open |
|---|---|
| Current rating | 15 A |
| Voltage rating | 600 Vac |
| Protection | IP66 |
| Material | Feraloy iron alloy |
Typical application
This explosionproof conveyor belt alignment switch may be used as part of a conveyor, crane, hoist, bulk-material handling or industrial machinery control system according to the manufacturer-defined duty. The field device must be integrated with the control logic and final stopping or indication function required by the machine risk assessment.
For replacement projects, record the old nameplate, mounting dimensions, shaft or lever direction, terminals and normal contact state before removal. Similar housings can conceal important differences, so a visual match must never replace full stock-code and datasheet verification.
Selection checklist
- Confirm the monitored condition and the required alarm, interlock or stop response.
- Verify actuator travel, approach direction, cable length or sensing target as applicable.
- Check contact type, utilization category, voltage and current against the control circuit.
- Confirm ingress, corrosion, temperature and hazardous-area requirements for the installation.
- Compare the full AFA20 order code and current documentation before procurement.
Installation, commissioning and maintenance
Install the device on a rigid support and keep the actuator, rope, roller, shaft or sensor within the movement and alignment limits stated by Eaton. Use suitable glands and earthing, protect wiring from mechanical damage and preserve enclosure sealing. Do not use a protective switch as a step, belt guide or structural stop.
Commission the complete cause-and-effect chain. Operate the field device safely, verify the controller input, confirm the intended alarm or stop, test local reset where fitted and ensure reset does not cause an unexpected machine restart. Record the result under the equipment tag and repeat functional tests at an interval based on risk and operating environment.
Official manufacturer source
Stock code and factual product-family information were verified on 19 July 2026 from the official Eaton source. Technical values, certification and availability can change; use the current exact-model document when issuing a purchase order.
