| PartNumber | 221-B-2 | 221-B | 221-B-3 |
| Description | Industrial Control Transformers Single, 2.5A, Manual 240Vin, 240V/264Vout | Industrial Control Transformers Single, 2.5A, Manual 120Vin, 120V/132Vout | Industrial Control Transformers 3-Phase, WYE, 2.5A 0-240Vin, 0-240Vout |
| Manufacturer | - | Staco | - |
| Product Category | - | Industrial Control Transformers | - |
| RoHS | - | Y | - |
| Power Rating | - | 300 VA, 330 VA | - |
| Primary Voltage Rating | - | 120 V | - |
| Secondary Voltage Rating | - | 0 V to 120 V/132 V | - |
| Secondary Current Rating | - | 2.5 A | - |
| Mounting Style | - | Chassis | - |
| Length | - | 83.3 mm | - |
| Width | - | 74.6 mm | - |
| Height | - | 54 mm | - |
| Operating Frequency | - | 50 Hz/60 Hz | - |
| Series | - | VT-1A | - |
| Brand | - | Staco | - |
| Product Type | - | Industrial Control Transformers | - |
| Factory Pack Quantity | - | 1 | - |
| Subcategory | - | Transformers | - |
| Unit Weight | - | 2.217 lbs | - |