Vanguard DigiTMR S2 - Manual (Page 26)

DIGITMR S2 USER’S MANUAL REV 1
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3.3.2. Initiate Cable Connections
The DigiTMR S2 will trip or close breakers through a solid-state device which will operate on
any AC or DC control voltage ranging from 10 to 300 Volts. Both the trip and close circuits are
protected by 5-Ampere fuses. A typical DC trip and DC close control circuit test connection is
shown in Figure 3. A typical DC trip and AC close control circuit is shown in Figure 4.
NOTE
Always connect the initiate circuit with an auxiliary switch in series. The auxiliary
switch provides the coil current interruption. Failure to follow this recommendation
will damage the DigiTMR S2 initiate circuit.
Figure 3. DC Trip and DC Close Initiate Circuit Cable Connections