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APPENDIX C
USING OLDER SD17060B-24 DRIVERS
Applicable Units
This appendix applies to all SD17060B-24 drivers. The SD17060B-24 has internal current limiting resistors
on its inputs and can only be used in 24Vdc systems. The SD17060B-24 was phased out of production in
December of 2008 and replaced by the redesigned SD17060B.
Replacing a SD17060B-24
A SD17060B-24 can be replaced by a SD17060B without changes to the system as long as the SD17060B
was manufactured after December of 2008. If the SD17060B was manufactured prior to the second half of
December 2008, you will have to add current limiting resistors to the circuit before using the SD17060B. See
appendix A on the previous page for more information.
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