| PartNumber | VPT18-13800 | VPT18-2780 | VPT18-1390 |
| Description | Power Transformers 18.0V CT @ 13.8A 9V @ 27.60A Parallel | Power Transformers 18.0V CT @ 2.78A 9V @ 5.56A Parallel | Power Transformers 18.0V CT @ 1.39A 9V @ 2.78A Parallel |
| Manufacturer | Triad Magnetics | Triad Magnetics | Triad Magnetics |
| Product Category | Power Transformers | Power Transformers | Power Transformers |
| Series | Chassis Mount: World Series | Chassis Mount: World Series | Chassis Mount: World Series |
| Product | Toroidal Power Transformers | Toroidal Power Transformers | Toroidal Power Transformers |
| Type | Toroidal | Toroidal | Toroidal |
| Unit Weight | 4.850 lbs | 1.323 lbs | 14.109585 oz |
| Mounting Style | Chassis | Chassis | Chassis |
| Termination Style | Wire Leads | Wire Leads | Wire Leads |
| Height | 54 mm | 33 mm | 32 mm |
| Mounting Type | Chassis Mount | Chassis Mount | Chassis Mount |
| Size Dimension | 112.00mm Dia x 54.00mm W | 80.00mm Dia x 33.00mm W | 71.00mm Dia x 32.00mm W |
| Current Output Max | Parallel 27.6A, Series 13.8A | Parallel 5.56A, Series 2.78A | Parallel 2.78A, Series 1.39A |
| Power Max | 250 VA | 50 VA | 25 VA |
| Voltage Isolation | 4000Vrms | 4000Vrms | 4000Vrms |
| Height Seated Max | - | - | - |
| Voltage Primary | 115V, 230V | 115V, 230V | 115V, 230V |
| Voltage Secondary Full Load | Parallel 9V, Series 18V | Parallel 9V, Series 18V | Parallel 9V, Series 18V |
| Primary Winding s | Dual | Dual | Dual |
| Secondary Winding s | Dual | Dual | Dual |
| Center Tap | No | No | No |
| Power Rating | 250 VA | 50 VA | 25 VA |
| Outside Diameter | 112 mm | 80 mm | 71 mm |
| Primary Voltage Rating | 115 V to 230 V | 115 V to 230 V | 115 V to 230 V |
| Secondary Voltage Rating | 9 V to 18 V | 9 V to 18 V | 9 V to 18 V |
| Secondary Current Rating | 13.8 A/27.6 A | 2.78 A/5.56 A | 1.39 A/2.78 A |
| Primary Winding | Dual Primary Winding | Dual Primary Winding | Dual Primary Winding |
| Secondary Winding | Dual Secondary Winding | Dual Secondary Winding | Dual Secondary Winding |
| Packaging | - | Tube | Tube |