PNOZ X7P
Operating Manual PNOZ X7P
21027-EN-05
23
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 X7P C
24 VAC/DC
Spring-loaded terminals
787 059
PNOZ X7P
24 VAC/DC
Screw terminals
777 059
PNOZ X7P C
110 - 120 VAC
Spring-loaded terminals
787 053
PNOZ X7P
110 - 120 VAC
Screw terminals
777 053
PNOZ X7P C
230 - 240 VAC
Spring-loaded terminals
787 056
PNOZ X7P
230 - 240 VAC
Screw terminals
777 056
