The ABB SSAC SCR series is a Universal Lamp Alarm Relay designed to sense the failure of flashing or steady incandescent beacon lamps or steady side lights. The toroidal current sensor provides isolation and allows monitoring of more than one line at a time. The SCR Series energizes when one or more lamps fail. It will monitor the operation of one to four side lights and up to four beacon lamps.

• Monitors incandescent lamps for failure
• Senses failed flashing beacon or obstruction lamps
• Switch selectable number, voltage, and wattage of lamps
• 10 A isolated SPDT alarm output contacts
• 1 A solid state line voltage alarm output
• Toroidal current sensing