Chamberlain G90100OP3 100VA Transformer - Three Phase
Upgrades the transformer in the operator enclosure from 60VA to 100VA. Provides additional control circuit power for auxiliary equipment such as loop detectors, gearbox heaters, electrical box heaters and other devices.
For Use with Models: SW470, SW490, SL540,SL570, SL580, SL590, BG770, BG790
