| PartNumber | 166P11 | 166P10 | 166P18 |
| Description | Power Transformers 55VA 115 11VCT | Power Transformers 50VA 115 10VCT | Power Transformers 18V 5A TRANSFORMER |
| Manufacturer | Hammond Manufacturing | Hammond Manufacturing | Hammond Manufacturing |
| Product Category | Power Transformers | Power Transformers | Power Transformers |
| Series | 166 | 166 | 166 |
| Product | Power Transformers | Power Transformers | Power Transformers |
| Type | Laminated Core | Laminated Core | Laminated Core |
| Unit Weight | 2 lbs | 2 lbs | 3 lbs |
| Mounting Style | Chassis | Chassis | Chassis |
| Termination Style | Wire Leads | Wire Leads | Wire Leads |
| Operating Temperature Range | 0 C to + 130 C | 0 C to + 130 C | 0 C to + 130 C |
| Height | 58.7 mm | 58.7 mm | 66.8 mm |
| Length | 93.7 mm | 93.7 mm | 102.4 mm |
| Width | 47.8 mm | 47.8 mm | 57.2 mm |
| Mounting Type | Chassis Mount | Chassis Mount | Chassis Mount |
| Size Dimension | 93.73mm L x 54.10mm W | 93.73mm L x 54.10mm W | 102.36mm L x 63.50mm W |
| Current Output Max | 5A | 5A | 5A |
| Power Max | 55 VA | 50 VA | 90 VA |
| Voltage Isolation | 2000Vrms | 2000Vrms | 2000Vrms |
| Height Seated Max | 54.10mm | 54.10mm | 66.80mm |
| Voltage Primary | 115V | 115V | 115V |
| Voltage Secondary Full Load | 11V | 10V | 18V |
| Primary Winding s | Single | Single | Single |
| Secondary Winding s | Single | Single | Single |
| Center Tap | Yes | Yes | Yes |
| Power Rating | 55 VA | 50 VA | 90 VA |
| Primary Voltage Rating | 115 VAC | 115 VAC | 115 VAC |
| Secondary Voltage Rating | 11 VAC CT | 10 VAC CT | 18 VAC CT |
| Secondary Current Rating | 5 A | 5 A | 5 A |
| Primary Winding | Single Primary Winding | Single Primary Winding | Single Primary Winding |
| Secondary Winding | Single Secondary Winding | Single Secondary Winding | Single Secondary Winding |
| Operating Frequency | 50 Hz 60 Hz | 50 Hz 60 Hz | 50 Hz 60 Hz |
| Packaging | - | - | Bulk |