The IS220PRTDH1A is a Resistance Temperature Device (RTD) Input Module belonging to GE’s Mark VIe control system, designed for accurate temperature measurement in industrial applications, including hazardous locations. It is compatible with accessory terminal boards IS200TRTDH2D, IS200SRTDH1A, and IS200SRTDH2A, with SRTD boards using Euro Style Box- type terminal blocks (24–12 AWG wire, 4 in-lb/0.45 Nm screw torque) and TRTD boards using Barrier-type terminal blocks (22–12 AWG wire, 9.6 in-lb/1.1 Nm screw torque). Electrical specifications include a power supply voltage range of 27.4 to 28.6 Vdc, a maximum power consumption current of 0.24 A, RTD input voltage up to 4.2 V, and a nominal 10 mA excitation current for RTD sensors. The module features intrinsic safety "ic" certification for hazardous location use, with entity parameters including Voc (15 V), Isc (10 mA), Po (0.15 W), Ca (3 µF), and La (100 mH), supporting connection to resistive simple apparatus like RTDs with a maximum cable length of 1000 ft (304.8 m). It holds certifications such as UL E207685 for non-hazardous locations, Class I, Division 2 (Groups A–D), Class I, Zone 2 (Group IIC), and ATEX Zone 2 (Group IIC, DEMKO 12 ATEX 1114875X), complying with standards including UL 508 Ed. 17, ANSI/ISA-12.12.01-2015, and EN 60079 series. The operating ambient temperature range is -30°C to +65°C (-22°F to +149°F), making it suitable for harsh industrial environments requiring reliable RTD-based temperature monitoring. | 
