BFA-Series & NFA-Series Operation Instructions
Corporate Headquarters:
1080 North 11th Street, San Jose, CA 95112 Phone: (408) 292-2214 Fax: (408) 292-2733
www.mountztorque.com
Page 3
STC40-FA Input Voltage Selection
By changing the position of cover as below, the input power can be switched between 110V or 230V. For changing the
input voltage, loosen two screws and assemble the cover as below.
230VAC Selected
110VAC Selected
Connecting Electric Screwdriver
Before connecting the electric screwdriver, make sure the little switch in the lower bottom right of the STC40-FA is positioned in the
proper setting (F or NF). See diagram. Only operate tool in proper “Mode” setting.
Select F mode for operating
BFA-Series - 30 VDC
Select for NF or operating
NFA-Series - 40 VDC
STC40-FA Specification
Max. Output: 12A
Output VDC: 30/40V
Input VAC: 110/230V (selectable)
Size inches (W x D x H): 4 3/8” x 7 1/2” x 2 3/8”
Weight: 1.8 lbs.
Intermittent Operation:
10s On / 30s Off
Fuse:
10 A 250V
Rated power:
2.5A 105W
