NOTE: Some of these wiring harness connectors are used in Radium Engineering products. For a complete bulkhead mating connection, select one internal and one external harness from the lists above.
INTERNAL AND EXTERNAL BULKHEADS
External harness wires use 24" long 10AWG TXL insulated wires. Internal harness use twin 16 AWG ETFE insulated wires. 
Metal shell harnesses and compatible bulkheads harnesses are shown above.
Internal 7-pin plastic bulkhead harnesses are shown above.
EXTERNAL ELECTRICAL BULKHEAD CONNECTORS
These bulkheads can be used for rebuilding a damaged connector or for DIY installation.
Metal shell 4-way connector shown above.
Radium no longer carries the external 7-pin mating connector or flying lead harness assembly found on legacy Radium products. However, the connector kit shown in the photo below is still available from electrical component retailers on the iternet. Google search using the part number in the photo.
PANEL REQUIREMENTS
All panels must be 0.06-0.18 inches thick. See the drawing below for cutouts for each bulkhead connector. A gasket is included on the large connector and the small connector includes an O-ring for sealing against panel surface.
PINOUTS
If wiring a connector to a Radium Engineering internal harness, the pinouts are below.
