LOW VOLTAGE - OPEN STYLE CHASSIS MOUNT - 186 / 187 SERIES • Choice of two primaries: Single Primary 115VAC or Dual Primary 115/230 VAC. • Either series operates on 50/60 Hz. • Combination solder or quick connect terminals. • Split bobbin construction eliminates need for electrostatic shield. • Hi-pot tested to 2 KV RMS. • Economical open style, channel frame - chassis mount design • UL recognized & CSA certified • For more information on this series, go to: http://www.hammondmfg.com/186_187.htm Transformer Schematics - Dual Primary (186 Series) 1 5 2 T T ER 18 TE ERM M 1 6B RM -T XX 5-T 3-TE ERM ER RM 2 M 7 4: : 11 -TE 11 5V JS RM 5V XX XX 8: X 50/ .E 20 XV 60H 8 7 CT z ED 860 X 7 DAXXA TE 6 C 7 5 TE 18 TE TER RM 1 RM M 6D 6-T 4-TETER XX ER RM M 2 M8 5 :1 -TE : 11 15V J SX RM 5V XX 10: 50 X E2 XX /60 07 10 VC Hz ED 860 TX 9 DA XA T E 8 7 6 C B 1 2 B E 3 4 8 4 5 3 D A PRI E 4 2 1 D A SEC 3 2 4 5 1 3/16" Dia. PRI 3/16" Dia. Figure 6B 6 8 10 SEC Figure 6D Transformer Schematics - Single Primary (187 Series) 4 1 18 TE TER RM M 7A 4-T 1-TE XX ER RM M5 -TE 3: 1 RM 15V JSX 6: X 50 XXX E XV /60 CT Hz 2E0786 6 D 0 XX DA A TE 5 C 5 T TE ERM 18 RM 7B 5-T 2-TE XX ER RM M 7 3: -TE 11 RM 5V JSXX 8: X 50/ XX XV 60H CT z XX 8 A DA 7 TE 6 5 C 4 B 3 5 E2 07 ED 860 E 6 PRI E D 1 A SEC D 8 3 2 Figure 7B 6 E2 07 ED 860 2 B E 4 A 8 4 5 D 10 3 2 SEC 3/16" Dia. Figure 7A C 1 PRI 3/16" Dia. T TE ERM 18 RM 7D 6-T 2-TE XX ER RM M 8 4: -TE 11 RM 5V JSXX 10: 50/ XX XX 60H 10 VC z TX 9 X DA A TE 8 7 6 7 3 4 3 A 2 B 1 PRI SEC VA Size 2.34 - 2.50 5.60 - 6.40 12 - 12.8 30 - 32 50 - 60 98 - 102 Length (A) 2.06 2.37 2.81 3.25 3.68 4.03 Dimensions (Inches) Depth (Not Including Mtg. Terminals) Height Centers (B) (C) (D) 1.06 1.18 1.75 1.25 1.37 2.00 1.37 1.62 2.37 1.68 1.93 2.81 1.81 2.25 3.12 2.25 2.56 3.50 Depth To Terminal (E) 1.435 1.625 1.725 2.055 2.185 2.625 3/16" Dia. Figure 7D August 2008 Part Number Single Primary 115VAC 187A10 187B10 187C10 187D10 187E10 187F10 187A12 187B12 187C12 187D12 187E12 187F12 187A16 187B16 187C16 187D16 187E16 187F16 187A20 187B20 187C20 187D20 187E20 187F20 187A24 187B24 187C24 187D24 187E24 187F24 187A28 187B28 187C28 187D28 187E28 187F28 187A36 187B36 187C36 187D36 187E36 187F36 187A48 187B48 187C48 187D48 187E48 187F48 187A56 187B56 187C56 187D56 187E56 187F56 187A120 187B120 187C120 187D120 187E120 187F120 Fig. 7A 7B 7B 7D 7D 7D 7A 7B 7B 7D 7D 7D 7A 7B 7B 7D 7D 7D 7A 7B 7B 7D 7D 7D 7A 7B 7B 7D 7D 7D 7A 7B 7B 7D 7D 7D 7A 7B 7B 7D 7D 7D 7A 7B 7B 7D 7D 7D 7A 7B 7B 7D 7D 7D 7A 7B 7B 7D 7D 7D Part Number Dual Primary 115/230VAC NOT AVAILABLE 186B10 186C10 186D10 186E10 186F10 NOT AVAILABLE 186B12 186C12 186D12 186E12 186F12 NOT AVAILABLE 186B16 186C16 186D16 186E16 186F16 NOT AVAILABLE 186B20 186C20 186D20 186E20 186F20 NOT AVAILABLE 186B24 186C24 186D24 186E24 186F24 NOT AVAILABLE 186B28 186C28 186D28 186E28 186F28 NOT AVAILABLE 186B36 186C36 186D36 186E36 186F36 NOT AVAILABLE 186B48 186C48 186D48 186E48 186F48 NOT AVAILABLE 186B56 186C56 186D56 186E56 186F56 NOT AVAILABLE 186B120 186C120 186D120 186E120 186F120 Secondary (RMS) Fig. 6B 6B 6D 6D 6D 6B 6B 6D 6D 6D 6B 6B 6D 6D 6D 6B 6B 6D 6D 6D 6B 6B 6D 6D 6D 6B 6B 6D 6D 6D 6B 6B 6D 6D 6D 6B 6B 6D 6D 6D 6B 6B 6D 6D 6D 6B 6B 6D 6D 6D VAC Current (Amps) 10V C.T. 10V C.T. 10V C.T. 10V C.T. 10V C.T. 10V C.T. 12.6V C.T. 12.6V C.T. 12.6V C.T. 12.6V C.T. 12.6V C.T. 12.6V C.T. 16V C.T. 16V C.T. 16V C.T. 16V C.T. 16V C.T. 16V C.T. 20V C.T. 20V C.T. 20V C.T. 20V C.T. 20V C.T. 20V C.T. 24V C.T. 24V C.T. 24V C.T. 24V C.T. 24V C.T. 24V C.T. 28V C.T. 28V C.T. 28V C.T. 28V C.T. 28V C.T. 28V C.T. 36V C.T. 36V C.T. 36V C.T. 36V C.T. 36V C.T. 36V C.T. 48V C.T. 48V C.T. 48V C.T. 48V C.T. 48V C.T. 48V C.T. 56V C.T. 56V C.T. 56V C.T. 56V C.T. 56V C.T. 56V C.T. 120V C.T. 120V C.T. 120V C.T. 120V C.T. 120V C.T. 120V C.T. 0.25 0.60 1.20 3.00 5.00 10.00 0.19 0.50 1.00 2.50 4.00 8.00 0.15 0.40 0.80 2.00 3.50 6.25 0.12 0.30 0.60 1.50 2.80 5.00 0.10 0.25 0.50 1.25 2.40 4.00 0.08 0.20 0.42 1.07 2.00 3.57 0.06 0.17 0.35 0.85 1.50 2.80 0.05 0.12 0.25 0.62 1.20 2.00 0.04 0.11 0.21 0.53 1.00 1.80 0.02 0.05 0.10 0.25 0.50 0.85 VA Rating 2.5 6.0 12.0 30.0 50.0 100.0 2.5 6.3 12.6 31.5 50.4 100.8 2.4 6.4 12.8 32.0 56.0 100.0 2.4 6.0 12.0 30.0 56.0 100.0 2.4 6.0 12.0 30.0 57.6 96.0 2.4 5.6 12.0 30.0 56.0 100.0 2.34 6.12 12.6 30.6 54.0 100.8 2.4 6.0 12.0 30.0 57.6 96.0 2.5 6.16 12.3 30.0 56.0 100.8 2.4 6.0 12.0 30.0 60.0 102.0 www.hammondmfg.com