IC3600KRSD1A1C - Reed Relay Card

SPECIFICATIONS:

Part No: IC3600KRSD1A1C
Manufacturer: General Electric Fanuc
Product Type: Reed Relay Card
Series: Mark I & II
Function: Generator Drive Control
Number of Relays: 8–16
Contact Configuration: Single-Pole, Single-Throw
Terminal Blocks: 24-point
Coil Voltage: 5 V DC / 24 V DC
Power Supply: 125 VDC
Switching Capacity: 0.5 A
Coil Resistance: 250–500 Ohms
Operate Time: 0.5 ms
Dielectric Strength: 1000 V RMS
Operating Temperature: 0°C to 70°C
Size: 8.83 x 3.58 x 4.7 inches
Product Lifecycle: Discontinued By Manufacturer
Availability: In Stock
Country of Origin: USA

FUNCTIONAL DESCRIPTION:

IC3600KRSD1A1C is a Reed Relay Card manufactured and designed by General Electric as part of the Mark II Series used in GE Speedtronic Control Systems. It is designed to provide high-speed, electrically isolated switching of control signals within GE Speedtronic turbine control systems. It utilizes reed relays to facilitate the precise transmission of input and output logic signals between the control modules and field devices. Each relay on the card operates by magnetically actuating a sealed contact set, ensuring fast response, minimal contact bounce, and high electrical isolation for sensitive circuits.

The card functions as a signal interface in turbine protection and control schemes, supporting trip logic, sequence control, and interlocking functions. It converts low-level logic commands from the Mark I/II control modules into discrete relay outputs that drive actuators, alarms, or auxiliary control circuits. The design allows for modular replacement, enabling quick maintenance without affecting the overall control system integrity.

• Electrically isolates input and output signals.
• Provides reliable high-speed switching for control and protection logic.
• Interfaces between logic modules and field actuators.
• Supports turbine trip, start, and shutdown sequences.
• Maintains system integrity during maintenance with a modular design.

INSTALLATION:

• Preparation: Ensure that the control system power is disconnected before handling the relay card. Verify that the card slot and connectors are free from dust, corrosion, or mechanical damage.
• Card Insertion: Align the IC3600KRSD1A1C with the designated card slot in the Mark I/II chassis. Carefully insert the card, ensuring full engagement of the edge connector without forcing.
• Connection Verification: Confirm that all input/output terminals are properly seated and that any signal wiring conforms to the control system’s wiring diagram. Secure the card using mounting screws or retaining clips as specified in the turbine control system manual.
• System Power-Up: Restore control system power and verify that the card is correctly recognized by the monitoring modules. Check for LED status indicators (if applicable) to confirm operational readiness.

OPERATION:

• Signal Switching: The reed relays on the card actuate in response to input logic signals, providing fast and isolated switching to downstream circuits. Contact closure and opening occur with minimal delay, supporting trip, start, and shutdown sequences.
• Logic Interface: Acts as an interface between Mark I/II control modules and actuators or alarm circuits, ensuring accurate transmission of control commands while electrically isolating sensitive circuits.
• Maintenance Mode: During testing or maintenance, the card can be powered down individually without affecting the remaining control system. Relay actuation can be monitored via test inputs to verify integrity without triggering turbine trips.
• Fault Response: In case of relay failure or signal loss, the card’s modular design allows for quick replacement, maintaining system reliability and continuity of turbine protection functions.

WOC has the largest stock of OEM Replacement Parts for GE Speedtronic Gas Turbine Control Systems. We can also repair your faulty boards and supply unused and rebuilt boards backed up with a warranty. Our team of experts is available around the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on parts and repairs, kindly contact our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

What is the function of the reed relay card?

Electrically isolates input and output logic circuits. Contains hermetically sealed reed relays for fast switching. Executes trip, start, and interlock logic operations. Routes signals to actuators, alarms, and auxiliary circuits.

Which turbine types can use this card?

Compatible with gas and steam turbine control systems. Interfaces with digital logic outputs to drive protective and operational circuits. Operates within system-specified voltage and current ranges.

What signal types does the card switch?

Switches low-current DC logic signals to control downstream devices. Relays are magnetically actuated and hermetically sealed with minimal contact bounce. Supports high-speed logic propagation in control networks.