Trip CIRCUIT Supervisory Relay :ATSR31A Standard Specifications : Control Supply: 24 / 30 / 110 / 220VDC.. Aux. annunciation Supply : 24 / 30 / 110 / 220VDC. Trip coil DC Resistance : To be less than 200 Ohm. If higher to be specified. Burden on Aux. supply : Aux. Burden less than 3VA. Control Contacts : 2NC - 1NO SR. Contact Rating : Alarm Duty - 10 Amp AC at 230VAC. Operating Time : 1.0 Sec. (+-0.1 Sec.)