Bosch PST 6000 Series, Technical Information

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PST 6250.XXX L
9-4
1070 080 058-101 (2001.04) GB
9.4 Technical data, PST 6250.XXX L
Type 2-phase thyristor power unit, module de-
signed for recessed mounting
Weld timer integrated
I/O interface Slot for parallel, serial or fieldbus inter-
face
Quality module Slot prepared for retrofitting
Degree of protection IP 20; designed for modular enclosure or
for installation in switchgear cabinets
with IP 54
Thyristor power unit ambient tem-
perature max. 55 ° C
Cooling air, max. 45 ° C
Temperature monitoring integrated
Storage temperature -25 ° C to +70 ° C
Corrosion The ambient air must be free of acids,
caustic solutions, corrosive agents, salts
and metal vapors of any major con-
centration
Humidity Humidity class F as per DIN 40040;
20
° C at 90% relative humidity;
40 ° C at 50% relative humidity (as per
VDE 0113);
Moisture condensation on the thyristor
power units must be prevented.
Air pressure Any within a range of up to 2000 m
above sea level
Line voltage connection
grounded TN or TT system 400 V -20% to 600 V +10%;
50/60 Hz
Nominal system current;
max. continuous thermal current 200 A
Voltage supply;
Weld timer CPU;
I/O interface 24 V DC; min. 19 V DC up to max. 30 V
DC as per EN 61131-2, (external power
supply), or, alternatively, power supply
from the weld current system (internal
power supply)
Duty cycle (ED) max. 50% duty cycle permitted (regard-
less of possible power unit operating cur-
rents, limited by the built-in 2.2 k
Ω de-ex-
citation resistor)
Clock frequency 50/60 Hz
Overvoltage protection MOV; Metal Oxide Varistor
Electrical connection, mains supply
and transformer
via box terminal; max. 95 mm
2
Wire range 95 mm
2
Basic switchgear cabinet loss 70 W
Weight approx. 12.5 kg
Mounting position vertical or with its back on mounting
plate