PNOZ_X2_8P_Operat_Manual_1004082-EN-21.pdf - 第30页

PNOZ X2.8P Operating Manual PNOZ X2.8P 1004082-EN-21 | 30 Unit types with UB 24-240 VAC/DC } U B : 24 – 240 VAC/DC; Order no. 777302, 787302 1 0 0 0 0 1 0 0 0 5 0 0 0 1 0 0 5 0 0 1 0 5 0 0 , 1 0 , 5 1 2 3 4 5 6 8 1 0 DC-…

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PNOZ X2.8P
Operating Manual PNOZ X2.8P
1004082-EN-21
| 29
Cycles x 1000
Switching current (A)
Fig.: Service life graphs at 110 V DC
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
value (see Technical details [ 17]) 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.
PNOZ X2.8P
Operating Manual PNOZ X2.8P
1004082-EN-21
| 30
Unit types with UB 24-240 VAC/DC
} U
B
: 24 – 240 VAC/DC; Order no. 777302, 787302
Number of operating cycles x 1000
Switching current (A)
Fig.: Service life graphs at 24 V DC and 230 V AC
Number of cycles x 1000
Switching current (A)
Fig.: Service life graphs at 110 V DC
PNOZ X2.8P
Operating Manual PNOZ X2.8P
1004082-EN-21
| 31
Example
} Inductive load: 0.2 A
} Utilisation category: AC15
} Contact service life: 1 000 000 cycles
Provided the application to be implemented requires fewer than 1 000 000 cycles, the PFH
value (see Technical details [ 17]) can be used in the calculation.
To increase the service life, sufficient spark suppression must be provided on all relay con-
tacts. With capacitive loads, any power surges that occur must be noted. With DC contact-
ors, use flywheel diodes for spark suppression.
Remove plug-in terminals
Procedure: Insert the screwdriver into the housing recess behind the terminal and lever the
terminal out.
Do not remove the terminals by pulling the cables!
Order reference
Product type Features Connection type Order no.
PNOZ X2.8P 24 VAC/DC Screw terminals 777301
PNOZ X2.8P C 24 VAC/DC Spring-loaded terminals 787301
PNOZ X2.8P 24 - 240 VAC/DC Screw terminals 777302
PNOZ X2.8P C 24 - 240 VAC/DC Spring-loaded terminals 787302