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Help CenterGeneral Electric IS201STCIH1A Single-group Isolation Dry Contacts
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General Electric IS201STCIH1A Single-group isolation dry contacts
The IS201STCIH1A is a 24-channel coated, single-point isolated dry contact input terminal board for the GE Mark Vie Speedtronic platform (STCI = Terminal Board Single-Point Isolation Contact Input, H1A = Single-point isolated coated version). The 24 dry contacts use single-point isolation (all points share a common terminal). It is compatible with the coated I/O module IS221PDIAH1B and features a conformal PCB coating, making it suitable for harsh environments such as humidity, dust, and chemical corrosion, as well as discrete signal acquisition scenarios in TMR redundant systems.
Core Hardware and Interfaces
Terminals and Connections: 24 dry contact inputs, single-group isolated (all points share a common terminal) barrier terminal block; 3 DC-37 pin connectors (JR1/JS1/JT1, corresponding to the R/S/T channels of TMR); 1 3-position female power connector for excitation power/common terminal; 1 37-pin female D-type connector for direct connection to the VTCC/VCRC I/O processor board.
Signals and Protection: Excitation voltage 24 VDC (wide range 16–32 VDC), single-group common terminal; 2.5 mA current limit per channel; 4 ms hardware filtering + TVS surge protection + PTC resettable fuse, protecting against contact bounce, EMI, and overvoltage reverse connection.
Coating and Protection: PCB conformal coating, suitable for harsh environments such as humidity, dust, and chemical corrosion; metal casing for natural heat dissipation, fanless; built-in ID identification, allowing the module to automatically identify the model.
System compatibility: Compatible with Mark VIe Speedtronic coated systems; compatible with IS221PDIAH1B coated I/O modules; supports single-mode (single connector) and TMR (triple connector) deployments.
Email: xmxblynn@163.com
Phone: +86 18059884797
Parameters Values
Model: IS201STCIH1A (STCI 24-channel single-group isolated contact input terminal block, coated version)
Compatible System: Mark VIe Speedtronic Coated System
Number of Inputs: 24 dry contact inputs, single-group isolation (all points share a common terminal)
Magnetic Voltage: 24 VDC (16–32 VDC)
Hardware Filtering: 4 ms/channel
Power Consumption: Approx. 12 W
Operating Temperature: -40°C to +70°C; Storage: -40°C to +85°C
Certifications: Class 1 Div 2, ATEX, CE, UL; G3 Compliant
Mounting Method: Standard DIN rail
Isolation Capability: Single-group isolation, all points share a common terminal
Safety and Redundancy Features
Coating Protection: PCB conformal coating, suitable for hazardous areas and harsh environments (humidity, dust, chemical corrosion), improving module reliability under harsh industrial conditions.
TMR Compatibility: Three 37-pin connectors correspond to the TMR's R/S/T channels, meeting the SIL 3 redundancy requirements for turbine control and ensuring independent acquisition and fault isolation for the R/S/T channels.
Diagnostic Capabilities: Supports excitation loss and input no-response diagnostics; LEDs indicate power supply, link, and input status, which can be read via ControlST software.
Hazardous Area Compatibility: Class 1 Div 2/ATEX certified, suitable for use in hazardous area control cabinets, compatible with SIS auxiliary system signal acquisition.
Email: xmxblynn@163.com
Phone: +86 18059884797
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