PNOZ s11
Operating Manual PNOZ s11
21693-EN-11
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Example
}
Inductive load: 0.2 A
}
Utilisation category: AC15
}
Contact service life: 2 000 000 cycles
Provided the application to be implemented requires fewer than 2 000 000 cycles, the PFH
) can be used in the calculation.
To increase the service life, sufficient spark suppression must be provided on all output
contacts. With capacitive loads, any power surges that occur must be noted. With DC con-
tactors, use flywheel diodes for spark suppression.
Permitted operating height
The values stated in the technical details apply to the use of the device in operating heights
up to max. 2000 m above sea level. When used in greater heights, constraints have to be
taken into account:
}
Permitted maximum operating height 5000 m
}
Reduction of rated insulation voltage and rated impulse withstand voltage for applications
with safe separation:
Maximum operation
height
Rated insulation
voltage
Overvoltage category
Max. rated impulse
withstand voltage
3000 m
150 V
II
2.5 kV
100 V
III
2.5 kV
4000 m
150 V
II
2.5 kV
100 V
III
2.5 kV
5000 m
150 V
II
2.5 kV
100 V
III
2.5 kV
}
Reduction of rated insulation voltage and rated impulse withstand voltage for applications
with basic insulation:
Maximum operation
height
Rated insulation voltage Overvoltage category
Max. rated impulse
withstand voltage
3000 m
250 V
II
2.5 kV
150 V
III
2.5 kV
4000 m
250 V
II
2.5 kV
150 V
III
2.5 kV
5000 m
250 V
II
2.5 kV
150 V
III
2.5 kV
}
From an operating height of 2000 m the max. permitted ambient temperature is reduced
by 0.5 °C/100 m
