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| PartNumber | 4000-03AW18AE777 | 4000-03AW18K999 | 4000-03C02K999 |
| Description | Power Transformers TRANSFORMER | Power Transformers CLASS 2 277 VAC | Power Transformers TRANSFORMER |
| Manufacturer | - | TE Connectivity Potter & Brumfield Relays | TE Connectivity Potter & Brumfield Relays |
| Product Category | - | Power Transformers | Power Transformers |
| Series | - | 4000, Products Unlimited | 4000, Products Unlimited |
| Product | - | Class 2 Transformers | Control Transformers |
| Type | - | Laminated Core | Laminated Core |
| Mounting Style | - | Mounting Foot | Mounting Foot |
| Termination Style | - | Wire Leads | Wire Leads |
| Height | - | 31.75 mm | 47.75 mm |
| Length | - | 71.42 mm | 82.55 mm |
| Width | - | 47.75 mm | 44.07 mm |
| Mounting Type | - | Chassis Mount | Chassis Mount |
| Size Dimension | - | 90.47mm L x 66.55mm W | 82.55mm L x 44.07mm W |
| Current Output Max | - | - | - |
| Power Max | - | 50 VA | 20 VA |
| Voltage Isolation | - | - | - |
| Height Seated Max | - | 55.58mm | 47.75mm |
| Voltage Primary | - | 277V | 277V |
| Voltage Secondary Full Load | - | 24V | 24V |
| Primary Winding s | - | Single | Single |
| Secondary Winding s | - | Single | Single |
| Center Tap | - | No | No |
| Power Rating | - | 50 VA | 20 VA |
| Primary Voltage Rating | - | 277 VAC | 277 V |
| Secondary Voltage Rating | - | 24 VAC | 24 V |
| Part # Aliases | - | 3-1611461-3 | 6-1672104-1 |
| Qualification | - | - | Commercial |
| Primary Winding | - | - | Single Primary Winding |
| Secondary Winding | - | - | Single Secondary Winding |