P R I N T E D C I R C UI T T R A N S F O R M E R S “Low Boy” LB Series Stancor® Low Boy™ Low Profile LB-210 STANCOR Part Sec. Number VA Primary Winding AC/DC Individual Volts mA Rated Output Series Volts mA Parallel Volts mA DIMENSIONS - INCHES H W L MW ML A B Weight (lbs.) A LB-210 2.0 Dual AC - - 10.0 C.T. 200 5.0 400 0.63 1.56 1.88 0.88 1.62 1.6 0.38 0.28 LB-310 3.0 Dual AC - - 10.0 C.T. 300 5.0 600 0.63 1.56 1.88 0.88 1.62 1.6 0.38 0.28 B LB-610 6.0 Dual AC - - 10.0 C.T. 600 5.0 1200 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 C LB-612 6.0 Dual AC - - 12.6 C.T. 450 6.3 900 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 LB-1212 12.0 Dual AC - - 12.6 C.T. 900 6.3 1800 1.06 2.00 2.50 1.00 2.00 2.0 0.50 0.72 LB-215 2.0 Dual AC - - 15.0 C.T. 150 7.5 300 0.63 1.56 1.88 0.88 1.62 1.6 0.38 0.28 LB-315 3.0 Dual AC - - 15.0 C.T. 225 7.5 450 0.63 1.56 1.88 0.88 1.62 1.6 0.38 0.28 D LB-616 6.0 Dual AC - - 16.0 C.T. 350 8.0 700 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 LB-1216 12.0 Dual AC - - 16.0 C.T. 700 8.0 1400 1.06 2.00 2.50 1.00 2.00 2.0 0.50 0.72 LB-420 4.0 Dual AC - - 20.0 C.T. 200 10.0 400 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 LB-520 5.0 Dual AC - - 20.0 C.T. 250 10.0 500 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 E LB-620 6.0 Dual AC - - 20.0 C.T. 300 10.0 600 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 LB-1220 12.0 Dual AC - - 20.0 C.T. 600 10.0 1200 1.06 2.00 2.50 1.00 2.00 2.0 0.50 0.72 LB-424 4.0 Dual AC - - 24.0 C.T. 167 12.0 333 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 F LB-624 6.0 Dual AC - - 24.0 C.T. 250 12.0 500 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 LB-1224 12.0 Dual AC - - 24.0 C.T. 500 12.0 1000 1.06 2.00 2.50 1.00 2.00 2.0 0.50 0.72 LB-634 6.0 Dual AC - - 34.0 C.T. 170 17.0 340 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 LB-1234 12.0 Dual AC - - 34.0 C.T. 340 17.0 680 1.06 2.00 2.50 1.00 2.00 2.0 0.50 0.72 LB-640 6.0 Dual AC - - 40.0 C.T. 150 20.0 300 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 LB-1240 12.0 Dual AC - - 40.0 C.T. 300 20.0 600 1.06 2.00 2.50 1.00 2.00 2.0 0.50 0.72 LB-256 2.0 Dual AC - - 56.0 C.T. 45 28.0 90 0.63 1.56 1.88 0.88 1.62 1.6 0.38 0.28 H LB-656 6.0 Dual AC - - 56.0 C.T. 100 28.0 200 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 I LB-6230 6.0 Dual AC - - 230.0 C.T. 25 115.0 50 0.88 1.56 1.88 0.88 1.62 1.6 0.38 0.34 LB-12230 12.0 Dual AC - - 230.0 C.T. 50 115.0 100 1.06 2.00 2.50 1.00 2.00 2.0 0.50 0.72 G Agency Certif. ✳ ✳ Agency Certification Note: UL Recognized (File E68100) Primaries are 115/230V 50/60Hz, 8 Pins 25 P R I N T E D C I R C UI T T R A N S F O R M E R S “Low Boy” LB Series W .020 X .041 MW B 1 A l ml 5 .216 .125 ± .015 DIA. h LB Type ( S e r i es Connections) 1 Line Primary 230v 50/60 Hz Line 5 2 6 4 8 3 l o a d Line Primary 115v 50/60 Hz 7 TECH TIP Explanation of Low Boy Interconnections Because of the toroidal effect, two identical coils are connected in series or parallel, but one of the coils must be connected in reverse in order to get correct polarity and voltage. 26 LB Type (Parallel Connections) Line 1 1 5 2 6 4 8 l o a d 3 7 3 Pri. Coil 2 Pri. Coil 1 2 5 4 7 6 8 Sec. Coil 1 Sec. Coil 2