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| PartNumber | K400A | K400A4B | K400A1D |
| Description | Industrial Relays CONTACTOR SPST | Industrial Relays CONTACTOR SPST DB 28 VDC INT | |
| Manufacturer | TE Connectivity | - | - |
| Product Category | Power Relays, Over 2 Amps | - | - |
| Product | Industrial | - | - |
| Type | Contactors | - | - |
| Part Aliases | 9-1616971-7 | - | - |
| Mounting Style | Panel | - | - |
| Current Rating | 400 A | - | - |
| Mounting Type | Flange | - | - |
| Contact Termination | Connector | - | - |
| Contact Form | SPST (1 Form X) | - | - |
| Coil Type | Latching | - | - |
| Switching Voltage | 28 VDC | - | - |
| Coil Termination | Connector | - | - |