SBS DUPLEX CONTROLLER SUGGESTED SPECIFICATION:
Pumps shall be controlled by a Federal Type SBS Submers-a-bulb Controller, which shall include a wall-mounting duplex control panel in a NEMA-1 general purpose enclosure. The control panel shall include a magnetic starter and a fusible disconnect switch for each motor, pump-on and pump-off relays, an automatic alternator to alternate the pumps on each cycle and provide simultaneous operation if required, pump-run lights, high water alarm light and an alarm bell with silencing button.
The SBS Controller shall also include four mercury bulbs on a wall-mounting (or pit cover-mounting) bracket and a NEMA-4 junction box.

