ConnectionSL1: 1a(-), 1b(-); 2a(+), 2b(+)Rated voltageUr 20.4 ... 30 V DC bus powered via Termination BoardRated current Ir 40 mA at 24 V, 20 mA output (per channel)Power dissipation0.85 W at 24 V (per channel)Degree of protectionIP20Massapprox. 140 gDimensions18 x 106 x 128 mm (0.7 x 4.2 x 5 i..