Automatic transfer switch controller
max. 513 mA, 8 - 35 V | DSE556 DES

The Model 556 is an Automatic Transfer switch and Mains controller with comprehensive
instrumentation and load control features.

The module is used to monitor a mains supply and automatically start and stop the system’s generating sets (controlled by DSE 550 load sharing controllers). It indicates the operational status by means of an
LCD display, and LEDs on the front panel.

The system is used to ‘manage’ the generator bus, which is fed by DSE 550 load sharing controllers.

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