Non-sparking (Ex nA) motors for Zone 2 areas where a hazardous atmosphere is unlikely in normal operation.
Every field is optional - tell us what you know and we will confirm the rest in the quotation.
Representative image. The actual product, make and appearance depend on the supplier and your specification.
Non-sparking motors are built so that arcs, sparks and hot surfaces are avoided in normal service, which is why they are limited to Zone 2 areas. If a hazardous atmosphere could appear in normal operation, this is not the right protection, and a flameproof motor is needed.
Mistakes include assuming a standard motor is acceptable, reusing an old certificate for a rewound motor, and ignoring dust hazards. For a higher protection level, see flame proof motors. Hazardous-area equipment choice should be reviewed by a qualified engineer. Our team can help with documents for the applicable zone.
Ratings, dimensions and certification are confirmed against your enquiry. Use Send an enquiry and our engineers will respond within 24 hours.
Only where the area classification allows Zone 2, meaning an explosive atmosphere is unlikely in normal operation and short-lived if it occurs. If the classification is Zone 1, you need a higher protection concept such as flameproof. Check with your safety officer.
Only if the certification explicitly covers inverter-fed operation and the temperature class is verified for that duty. Not all certificates do. Tell us the drive and speed range so the right documents can be requested.
| Motor Type | AC induction, non-sparking |
|---|---|
| Standard | IEC 60079-15 (Ex nA) |
| Enclosure / Protection | Ex nA, IP55 |
| Mounting | B3 foot / B5 flange / B35 foot-cum-flange |
| Duty | S1 continuous |
| Voltage Class | LT: 415 V, 3-phase, 50 Hz |
| Rotor | Squirrel cage |
Totally enclosed squirrel-cage induction motors - the general-purpose workhorse for dusty and outdoor industrial duty.
Vertical motors for cooling-tower fans, built to run reliably in constant moisture and temperature swings.
Slip-ring crane and hoist motors built for intermittent duty with frequent starts, reversals and braking.
Flameproof (Ex d) motors that contain an internal explosion and prevent ignition of a surrounding hazardous atmosphere.
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