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| Duty cycle |
Duty |
Description |
Features |
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S1 |
CONTINUOUS DUTY |
S1 - Motor can operate continuos duty at rated load |
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S2 |
SHORT TIME DUTY |
S2 - Motor can operate at rated load for the period of time expressed in minutes indicated on the label; then must be stopped for the time necessary to cool it down to the enivironment temperature |
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S3 |
INTERMITTENT PERIODIC DUTY |
S3 - Operation time must follow a sequence of periodical cycles. Each cycle includes a consistent load operating time expressed in percentage and a rest time (percentage given on a 10 minutes cycle basis) |
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Protection
class |
Protection |
Charact. digit |
Description |
IP20 |
1st characteristic digit |
Protection against penetration of solid object measuring over 12mm (ex., accidental contact with fingers) |
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2nd characteristic digit |
No protection against water |
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IP44 |
1st characteristic digit |
Protection against penetration of solid object measuring over 1mm (ex., penetration with tools, wires, etc.) |
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2nd characteristic digit |
Protection against water splashes from any direction |
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Insulation
classes |
Insulation
classes |
Maximum admitted temperature for insulating
material inside the motor.* |
B |
130°C |
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F |
155°C |
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* Class "B" is standard insulation. Class "F" available for high operation temperature.
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