Model SB-12

Page Boss Paging Telephones

The Model SB-12-A Safety Barrier for 12 VDC paging telephone systems allows non-permissible telephones systems with 12 volt DC phones to be connected to permissible phones (12 VDC) in the face area and along longwalls.  The Model SB-12-A MSHA approved number is IA-621.  The barrier must be located in the fresh air (out-by) and grounded.  High quality push type connectors allows easy installation and a convenient point for trouble shooting your page phone system.