2TLC172315M0201 Rev.M3
37
Power source
The Limited Voltage / Current source must comply with
one of the following:
A) An isolating device such that the maximum open
circuit voltage potential available to the circuit is not
more than 30 VDC and the current is limited to a value
not exceeding 8 amperes measured after one minute of
operation.
B) A suitable isolating source in conjunction with a fuse
in accordance with UL248. The fuse shall be rated max.
3 A and be installed in the 30 VDC power supply to the
device in order to limit the available current.
Conductor area
Max. current limit for overload protection:
AWG (mm
2
) Amps
24 (0,20)2
22 (0,32)3
20 (0,52)5
18 (0,82)7