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IS230TNCIH2C - Simplex Contact Input Assembly Module is available in stock which ships the same day.
IS230TNCIH2C - Simplex Contact Input Assembly Module comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: IS230TNCIH2C
Manufacturer: General Electric (GE)
Series: Mark VIe
Functional Acronym: TNCI
Product Type: Contact Input Module Assembly (Simplex)
Hardware Revision: Rev C
Total Input Channels: 24 dry contact inputs
Nominal Excitation Voltage: 24 V DC
Excitation Voltage Input Source: Dual plugs (JE1 and JE2) on the terminal board
Redundancy Type: Simplex Architecture
System Mounting: Standard DIN Rail or heavy-duty cabinet frame mounting
Terminal Block Style: Two heavy-duty barrier-style terminal blocks (TB1 & TB2)
Interface Connectors: Three 37-pin female D-type connectors (JR1, JS1, JT1)
Ambient Operating Temperature: -30°C to +65°C (-22°F to +149°F)
Relative Humidity: 5% to 95% non-condensing
Repair / Evaluation Lead Time: 3-5 Business Days
Availability: In Stock
Country of Origin: United States (USA)
Manual Reference: GEH-6721
The IS230TNCIH2C is a Simplex Contact Input Assembly Module designed and manufactured by General Electric for its flagship Distributed Mark VIe turbine control platform. Categorized as a modular kit assembly, the TNCI module groups a base terminal board (TBCI) and a local processor I/O pack (PDIA) into a unified, high-integrity field termination block. It is engineered specifically to process 24 channels of dry (unpowered) discrete inputs, including field limit switches, level sensors, and trip contacts.
THE 24V DC SIMPLEX ARCHITECTURE (H2C)
The H2C configuration indicates that this module is optimized for systems running a 24V DC excitation loop in a Simplex arrangement. Power is supplied through the board's designated JE1 and JE2 plug connectors, which then distribute 24V DC to the field switches. Because it is a Simplex module, it includes one PDIA I/O pack connected via the JR1 D-sub link to process data directly to a single network line, serving as a highly cost-effective setup for non-TMR or secondary control loops.
INTELLIGENT OPEN-CONTACT DIAGNOSTICS & FAIL-SAFES
What distinguishes the TNCIH2C module is its integrated diagnostic layer. The on-board data acquisition circuitry runs continuous cyclic logic health checks, including a dedicated inspection of inputs when they are in the open contact position. If a channel registers an electrical state that violates the true digital-tracking boundaries (such as unexpected line degradation or impedance loss), the module flags an immediate system diagnostic alarm and forces the affected inputs into a deterministic, secure fail-safe state.
IONET AND SYSTEM INTEGRATION
By incorporating the I/O pack directly onto the structural sheet-metal framing of the terminal board, the TNCIH2C transitions raw millivolt/milliamp signals immediately into digitized, time-coherent network data. The plugged-in I/O pack routes the signal data out over a high-speed, deterministic 100 MB Ethernet-based I/O network (IONet), feeding the main Mark VIe controller without suffering signal attenuation over extended distances.
WHY PARTNER WITH WORLD OF CONTROLS
World of Controls specializes in supplying high-quality, warranty-backed OEM replacement parts, including unused surplus and professionally rebuilt components for critical turbine control and industrial automation systems like the General Electric Mark VI and Mark VIe platforms. To minimize customer downtime and ensure original equipment standard compliance, every component undergoes rigorous inspection, testing, and verification in an advanced electronics lab. Beyond parts distribution, the company delivers comprehensive, global support through 24/7 technical assistance, expert troubleshooting, component repair services, and rapid shipping, ensuring optimal efficiency and long-term reliability for critical industrial operations worldwide.
What is the GE IS230TNCIH2C?
It is a Simplex Contact Input Assembly Module manufactured by General Electric (GE) for the Mark VIe Distributed turbine control system. It combines a TBCI terminal board and a PDIA I/O pack into a single assembly to process up to 24 dry contact input signals from field devices such as limit switches, relays, and trip contacts.
Which control system is this module compatible with?
This module is specifically designed for the GE Mark VIe Speedtronic control platform. It communicates with the controller through the IONet network, making it suitable for industrial gas and steam turbine control applications.
How many contact input channels does it support?
The module supports 24 dry contact input channels and operates using a 24 V DC excitation supply. It is designed to provide reliable monitoring of discrete field signals in Simplex control architectures.
What diagnostic features are included?
The module continuously monitors the condition of each input channel and performs open-contact diagnostics. If an abnormal electrical condition is detected, it generates a diagnostic alarm and places the affected channel into a secure fail-safe state to improve system reliability.
Can this module be repaired?
Yes. World of Controls provides professional evaluation and repair services with a typical turnaround time of 3–5 business days. All repaired modules are thoroughly tested to ensure dependable operation before shipment.
Is this module available in unused and rebuilt condition?
Yes. WOC supplies this module in both UNUSED surplus and professionally rebuilt conditions. Each unit is fully inspected, tested, and backed by warranty for reliable performance in critical industrial applications.
