v_shortname: Switching amplifier, device offers intrinsically safe circuits for device protection level: Ga , Gb , Gc , Da , Db , Dc, safety integrity level: SIL 3, signal type: binary input, number of channels: 1, field side device: SN/S1N sensor, potential-free contact, control side type: relay (normally open), transmission direction: to the control, functions: error message output, line fault monitoring, supply: 115 V AC, 230 V AC, supply connection: terminals, connection type: screw terminals, housing width: 40 mm, ambient temperature: -20 ... 60 °C (-4 ... 140 °F)