| PartNumber | K4001B5C2 | K4001A3C | K400A1F |
| Description | Industrial Relays 400AMP SPST 28VDC GASKT SEAL CONTACTOR | Industrial Relays 400AMP SPST NO 28VDC GASKT SEAL CONTACTOR | Industrial Relays 400 AMP CONTACTOR 28 VDC SPST NO |
| Manufacturer | TE Connectivity | TE Connectivity Aerospace, Defense and Marine | - |
| Product Category | Industrial Relays | Power Relays, Over 2 Amps | - |
| RoHS | N | - | - |
| Product | Contactors | Industrial | - |
| Contact Termination | Connector | Connector | - |
| Relay Contact Form | 1 Form X (SPST) | - | - |
| Contact Current Rating | 400 A | 400 A | - |
| Coil Termination | Connector | Connector | - |
| Coil Type | Latching | Non Latching | - |
| Coil Voltage | 28 VDC | 28VDC | - |
| Coil Resistance | 86.5 Ohms | 86.5 Ohms | - |
| Coil Current | 650 mA | 500mA | - |
| Switching Voltage | 28 VDC | 28VDC - Nom | - |
| Mounting Style | Panel | Panel | - |
| Mounting Type | Flange | Chassis Mount | - |
| Series | HARTMAN K SERIES | K, Hartman | - |
| Application | Industrial | - | - |
| Contact Form | SPST (1 Form X) | SPST-NO (1 Form X) | - |
| Current Rating | 400 A | 400 A | - |
| Power Consumption | 9.1 W | 9.1 W | - |
| Brand | TE Connectivity / Hartman | - | - |
| Product Type | Industrial Relays | - | - |
| Factory Pack Quantity | 1 | - | - |
| Subcategory | Relays | - | - |
| Part # Aliases | 8-1616982-7 | - | - |
| Type | - | Contactors | - |
| Packaging | - | Bulk | - |
| Part Aliases | - | 6-1616968-5 | - |
| Termination Style | - | Connector | - |
| Features | - | Sealed | - |
| Operate Time | - | 35ms | - |
| Release Time | - | 20ms | - |
| Relay Type | - | Contactor | - |
| Contact Rating Current | - | 400A | - |
| Turn On Voltage Max | - | 13 VDC | - |
| Turn Off Voltage Min | - | 9 VDC | - |