183E20 www.hammondmfg.com low voltage p.c. board mounted power transformer connection information 183 series power t ransformers secondary connections - 183 series t ransformers primary connections - 183 series t ransformers 1 4 3 6 1 2 1 0 9 7 pr i sec 115 vac p r i m a r y w i r i n g f o r 115v ( p a r a lle l c o n nec t i o n ) 1 4 3 6 1 2 1 0 9 7 pr i sec 230 vac p r i m a r y w i r i n g f o r 2 30v ( s e r i e s c o n nec t i o n ) 1 4 3 6 1 2 1 0 9 7 pr i sec s e co nda r y w i r i n g ( p a r a lle l c o n nec t i on) 1 4 3 6 1 2 1 0 9 7 pr i sec s e co nda r y w i r i n g ( s e r i e s c o n nec t i on) mechanical - inches (mm) l 1.63 (41.4) w 1.44 (36.6) h 1.13 (28.7) a 0.2 (5.1) b 0.25 (6.4) c 1 (25.4) m 1.06 (26.9) n - (-) p - (-) pin size 0.025 (0.6) screw type #4 weight 0.17 lbs. / 0.08 kg electrical size (va) 2.5 primary 115 / 230 vac sec (series) 20v c.t. @ 0.12a sec (parallel) 10v @ 0.24a key features: ? universal operaton on 50/60hz, 115 or 230v dual primary for worldwide use. ? low profle, split bobbin with top shroud design ? dual winding secondary, non-concentrically wound. ? low primary to secondary coupling with no elec - tro-statc shield required. ? high insulaton - hipot of 4,000v rms ? class f insulaton - 155 degrees c. ? p.c. board mount with industry standard pin spacing. ? agency listngs: curus, ce, and tuv. n m p w note: pin numbers are not on the unit. instead, look for the paint dot. it is always on the secondary side. (pins 12-7). 1 3 4 6 12 10 9 7 183E20ww
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