PNOZ X4
Operating Manual PNOZ X4
19894-EN-07
31
Service life graph
The service life graphs indicate the number of cycles from which failures due to wear must
be expected. The wear is mainly caused by the electrical load; the mechanical load is negli-
gible.
Number of cycles x 1000
Switching current (A)
Example
}
Inductive load: 0.2 A
}
Utilisation category: AC15
}
Contact service life: 4 000 000 cycles
Provided the application to be implemented requires fewer than 4 000 000 cycles, the PFH
value (see Technical details) 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.
Order reference
Product type
Features
Connection type
Order no.
PNOZ X4
24 VDC
Screw terminals
774 730
PNOZ X4
24 V AC
Screw terminals
774 731
PNOZ X4
110 V AC
Screw terminals
774 734
PNOZ X4
115 V AC
Screw terminals
774 735
PNOZ X4
120 V AC
Screw terminals
774 736
PNOZ X4
230 V AC
Screw terminals
774 738
PNOZ X4
240 V AC
Screw terminals
774 739