www.fanox.com Rev. 07 18/1383.5.2. Burden curve for SIA-B relay3.5.3. Impedance curve for SIA-B relay0,1001,00010,000100,0000,000 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 14,000 15,000 16,000 17,000 18,000 19,000 20,000Burden (VA)Average Current (A)Burden Curve for SIA-B /1 relay0,1001,00010,0000,000 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 14,000 15,000 16,000 17,000 18,000 19,000 20,000Impedance (Ohms)Average Current (A)Impedance Curve for SIA-B /1 relay