Relay and Interruption Features

The GPS300, GPS350, and GPS360 interrupters can be connected to almost any external current relay (or multiple relays) using a 12V control. Depending on the configuration, the interrupter supplies up to 500mA (12V) relay control current. As a result, numerous relays can be controlled with one interrupter. This leads to significant cost savings in areas where multiple current sources in a confined area need to be switched. The MicroMax interrupters can be set to accommodate normally open and normally closed relays. There are several relay options for switching either AC or DC at various loads.

The GPS350 and GPS360 include a built-in solid state relay that can interrupt either AC or DC, up to 60 A with on/off cycles of less than 4 seconds and 80 A with cycles totaling 4 seconds or longer. The internal relay can be easily installed without concern for polarity.

The MicroMax interrupter relay and interruption features include:

  • The interrupters can drive an external relay of 100 A / 100 V (higher capacities available).

  • The interrupters can be connected to any external current relay (or multiple relays). The interrupter supplies up to 500mA.

  • GPS300 can be used with a solid state relay (AC or DC) or mercury relay (AC or DC).

    • For important information about mercury relays, refer to Mercury Relay Advisory.

  • GPS350 and GPS360 have a built-in solid state relay that can interrupt either AC or DC, up to 60 A with on/off cycles of less than 4 seconds and 80 A with cycles totaling 4 seconds or longer. The relay is Normally Closed.

  • The interrupters include the ability to use Zero Crossing to set when timed measurements are taken. Zero Crossing allows you to use the instant when the AC crosses zero instead of using a GPS reading.

  • With external relays, user-selectable control of the interrupters output to 0 V or 12 V for "On" or "Off." (Accommodates normally open or normally closed relays.)

  • Synchronization can be set on the leading or falling edge of the interruption cycle.

  • Interruption continues automatically after power is disrupted.

  • Cycle range up to 999.9 seconds in 0.1 second increments.

  • Synchronization triggering accuracy is within 1µs with any other GPS300or GPS350 interrupter and collectively is less than 5µs after the PPS signal (precise positioning service signal) as provided by the GPS satellite constellation, even when only one satellite is visible.

  • The interrupters are fully programmable between the following schedules: continuous, daily, start/stop, and interference. Can store up to nine different interruption programs for later use.