Technical Data
| Product Family: | Sensor / Actuator Connectors |
| Product Sub Family: | M8 Standard |
| Mating Side: | M8 Screw |
| Connecting Side: | Print Contacts |
| Brand: | Lumberg Automation |
| Connector Type: | Receptacle |
| Type of Contact / Gender: | Female |
| Connector Design: | Rear Mount |
| Number of Pins: | 4 |
| Coding: | A |
| Shielding: | Unshielded |
| Attachment Type: | Screw-Locking |
| Rated Voltage: | 30 V |
| Rated Impulse Voltage: | 0.8 kV |
| Operating Voltage: | 30 V AC/DC |
| Rated Current*: | 4 A |
| Contact Resistance: | ? 10 mOhm |
| Insulation Resistance: | ? 10^9 Ohm |
| Mating Cycles: | ? 100 |
| Type of Connection: | PCB |
| Thread Size: | M10x1 |
| Thread Material: | CuZn |
| Thread Plating: | Nickel-plated |
| Ambient Temperature (Operation)*: | – 25 °C – + 85 °C |
| Protection Degree / IP Rating**: | IP67 |
| Design Standard: | IEC 61076-2-104 |
| Pollution Degree: | 3 acc. to DIN EN 60664-1 (VDE 0110-1) |
| Overvoltage Category: | III acc. to DIN EN 60664-1 (VDE 0110-1) |
Materials
| Contact Base Material: | CuZn |
| Contact Plating: | Cu/Au |
| Contact Bearer Material: | TPU |
| Contact Bearer Color: | Black |
| Flammability Class (Contact Bearer): | UL 94 HB |
| Potted: | Yes |
| Housing Material: | CuZn |
| Housing Plating: | Cu/Ni |
| Housing Color: | Silver |
| Attachment Material: | CuZn |
| Attachment Plating: | Cu/Ni |
| O-Ring Material: | Front O-Ring: FKM; Rear O-Ring: NBR |
Additional Technical Data
| Fastening Torque (Attachment): | M 8×1: 30 Ncm, hand-tight |
Safety & Environmental Compliance
| RoHS Compliant: | yes |
Notes
| Note Derating: | * Notice derating |
| Protection Degree / IP Rating Note: | * only if mounted and locked in combination with Hirschmann / Lumberg connector. On the installation side tightness has to be assured by taking proper measures. |
| Item # | Item Description |
|---|---|
| 48978 | RKMHL 4/S 5,5 |








































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