Core Function: Accessory terminal board for thermocouple input modules, facilitating signal connection between thermocouple sensors and PTCC/YTCC I/O modules. Compatible Modules: Mark VIe PTCC series (IS220PTCCH1A, IS220PTCCH1B) and Mark VIeS YTCC series (IS220YTCCS1A) I/O modules. Terminal Block Type: Barrier-type, supporting copper conductors with wire size 22–12 AWG. Screw Torque: 9.6 in-lb (1.1 Nm) for terminal screws. Intrinsic Safety Rating: Complies with "ic" safety level, suitable for intrinsically safe circuits in hazardous locations. Hazardous Location Certifications: US & CAN: Class I, Div 2, Groups A-D, T4; Class I, Zone 2, AEx nA [nC] IIC T4, Ex nA [nL] IIC T4 Gc X. ATEX: Ex ic nA [ic] IIC T4 Gc. Compliant Standards: UL 508 Ed.17, CSA-C22.2 No.142-M1987 (non-hazardous); ANSI/ISA-12.12.01-2015, CAN/CSA-C22.2 No.213-15 (Class I, Div 2); UL 60079-0 Ed.5, UL 60079-15 Ed.3 (Class I, Zone 2); EN 60079-0:2012, EN 60079-11:2012, EN 60079-15:2010 (ATEX Zone 2). Environmental Adaptability: Operates within the ambient temperature range of the associated I/O modules (-30 to +65 °C for most compatible modules). Wiring Capacity: Supports up to 24 thermocouple input channels (depending on the paired I/O module), with dedicated (+) and (-) terminals for each input signal. Signal Compatibility: Designed for thermocouple signals, supporting voltage ranges typical of industrial thermocouples (-8 to +45 mV dc). | 
