IC3600KMRA1 - Medium Duty Relay Card

SPECIFICATIONS

Part No: IC3600KMRA1
Manufacturer: General Electric
Part Type: Relay Module Card
Series: Mark I / Mark II Speedtronic
Relay Type: Medium-duty electromagnetic relays
Function: Switching between control logic and external circuits
Input Signal: Logic-level control signals
Output Switching: On/Off control of external loads
Electrical Isolation: Relay-based isolation
Relay Contact Rating: Medium-duty cycle
Mounting Style: Plug-in PCB, rack-mounted
Board Format: GE 3600 series PCB card
Operating Voltage: 24 VDC / 125 VDC
Operating temperature: -30 to 55 �C
Power Supply Voltage: 24 V dc
Board Size: 2.8 cm high x 8.6 cm
Weight: 0.45 kgs
Availability: In Stock
Country of Origin: USA

FUNCTIONAL DESCRIPTION:

IC3600KMRA1 is a Medium Duty Relay Card manufactured and designed by General Electric as part of the Mark II Series used in GE Speedtronic Gas Turbine Control Systems. It uses electromechanical relays to execute on/off control, providing an interface between the system�s logic circuits and external devices such as trip solenoids, alarms, and interlocks. This card ensures safe sequencing and protective operation by energizing or de-energizing outputs based on turbine operating conditions. The medium-duty rating allows the relays to handle moderate electrical loads, making them suitable for applications that require reliable signal switching without the need for heavy-duty power handling.

COMPATIBILITY:

The medium-duty relay card is compatible with GE Speedtronic Mark I and Mark II turbine control systems, mounting on the GE 3600 series rack backplane and interfacing directly with logic-level digital control inputs. It provides electrically isolated medium-duty relay outputs for solenoids, contactors, alarms, and auxiliary turbine devices, maintaining full separation between control circuitry and load circuits. The module is plug-in replaceable without configuration changes, backward compatible with prior revisions, and conforms to GE 3600 series interface, voltage, and current specifications for deterministic switching and reliable integration into turbine start-up, shutdown, and alarm sequences.

OPERATION:

The medium-duty relay card operates by receiving logic-level digital control signals from the Speedtronic turbine control system, which actuates its electromagnetic relays to open or close external circuits. Each relay output is electrically isolated from the control input, allowing safe switching of solenoids, contactors, alarms, and auxiliary devices without interference to control logic. Relay actuation is deterministic and repeatable, ensuring precise timing for turbine start-up, shutdown, and protection sequences. The card supports medium-duty switching cycles, maintaining reliability under normal turbine operating conditions, and integrates directly with the GE 3600 series rack backplane for plug-in replacement without system recalibration.

WORLD OF CONTROLS maintains the largest stock of replacement spare parts for GE Speedtronic Gas Turbine Control Systems and provides expert repairs for faulty boards, restoring them to full operational performance. We also supply unused and rebuilt parts, all backed by a comprehensive warranty, ensuring reliability and quality. Our team of automation and control experts is available 24/7 to support your OEM needs, offering technical guidance, troubleshooting, and recommendations to maintain uninterrupted turbine operations. For pricing, availability, or service inquiries, contact our team via phone or email and benefit from WOC�s extensive inventory, technical expertise, and prompt support for all turbine control requirements.

FREQUENTLY ASKED QUESTIONS:

What is the function of the Card?

The card converts logic-level digital control signals from the Speedtronic turbine system into electrically isolated medium-duty relay outputs for solenoids, contactors, alarms, and auxiliary equipment, ensuring safe and reliable actuation.

What is the operating voltage of the Medium Duty Relay Card?

Relay outputs operate typically at 24 VDC or 125 VDC, depending on the system configuration. This voltage rating ensures proper actuation of connected solenoids, alarms, and auxiliary devices. The card maintains signal integrity and isolation, preventing interference with control logic. It supports deterministic switching within turbine start-up and shutdown sequences.

What is the maximum switching load of the relays?

The medium-duty relays are rated to handle moderate AC or DC loads as specified in GE 3600 series standards. Each relay output can drive solenoids, contactors, or alarms without exceeding its current and voltage ratings. Exceeding these limits can reduce relay lifespan or compromise isolation. The module is designed for typical turbine auxiliary applications rather than high-power switching.

What is the response time of the relay outputs?

Relay actuation occurs within milliseconds, providing deterministic and repeatable responses for turbine start-up, shutdown, and protection sequences. The response time is sufficient to synchronize with other Speedtronic control events. Electrical isolation ensures that switching transients do not delay actuation. The timing performance is verified during factory testing and maintained across the operational voltage range.