Solid State Relay

Model Phases Firing Mode Output Current Low Current High Highlights
3021B Three Phase Power Controller Three phase Zero cross AC 10 70

120 - 575 Vac. Analog SCR Controller. Accepts most commands. Sync-guard smoothes out line current draw when multiple controllers are in use.

3021A Three Phase Power Controller Three phase Zero cross AC 10 70

120 - 575 Vac. Analog SCR Controllers. Accepts most commands.

3020 Three Phase Power Controller Three phase Zero cross AC 10 70

120 - 575 Vac. Analog SCR Controller. Powered off of the 4/20mA loop, so no control transformer is required.

2022 AC Single Phase Power Controller Single phase Phase angle AC 10 70

120 - 575 Vac. Analog SCR Controller. Accepts most commands. Dual setpoints for fast transitions.

1825 DC Power Controller Single phase Phase angle DC 10 30

120 - 240 Vac. Analog SCR Controller. Accepts mA commands. 120Hz fullwave DC output.

1822 DC Power Controller Single phase Phase angle DC 10 30

120 - 240 Vac. Analog SCR Controller. Accepts Vdc or potentiometer commands. 120Hz fullwave DC output.

1802 / 1805 DC Power Controller Single phase Phase angle DC 10 40

120 - 570 Vac. Analog SCR Controller. Accepts Vdc or potentiometer commands. 60Hz halfwave DC output.

1600 (Multi-zone) Power Controller Single phase Phase angle, Zero cross AC 10 70

120 to 575 Vac. Multi-zone SCR Controller. Accepts most commands. Allows mixing of line voltages and load currents for multiple zones in a small footprint.

1032A Single phase Phase angle AC 10 70

120 - 575 Vac. SCR controller that accepts most commands. Field adjustable current limiting.

1025 Single phase Phase angle AC 10 70

120 - 480 Vac. Analog SCR Controllers. Accepts mA commands.

1022 Single phase Phase angle AC 10 70

120 - 480 Vac. Analog SCR Controllers. Accepts Vdc and potentiometer commands.

1021B Single phase Zero cross AC 10 70

120 - 575 Vac. Analog SCR Controller. Sync-guardâ„¢ smoothes out line current draw when multiple controllers are in use.

1021A Single phase Zero cross AC 10 70

120 - 575 Vac. Analog SCR Controller. Accepts most commands.

1020 Single phase Zero cross AC 10 70

120 - 575 Vac. Analog SCR Controller. Powered off of the 4/20mA loop, so no control transformer is required.