IS230TRLSH1B - Relay Output Assembly Module

IS230TRLSH1B - Relay Output Assembly Module IS230TRLSH1B - Relay Output Assembly Module

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Part Number: IS230TRLSH1B
Manufacturer: General Electric
Series: Mark VIe
Product Type: I/O Module
Metal Oxide Varistors Quantity: 7
Power Requirements: +5 V dc, 6 A
Number of relay channels: 12
No.of Connectors: 12
Power supply voltage: 28 V dc
Technology: Surface mount
Operating temperature: -40 to +70�C
Size: 15.9 cm high x 17.8 cm
Weight: 0.8kg
Repair: 3-7 Day
Availability: In Stock
Terminal Blocks: 2 (TB1 and TB2)
I/O Packs: 2
Country of Manufacturer: United States

Functional Description

IS230TRLSH1B is an Relay Output Assembly Module designed and developed by GE. It is a part of Mark VIe control system. The component is DIN-Rail mounted. A simplex relay output assembly module is a device used in industrial automation and control systems. It provides a means of switching electrical loads on and off using a relay. The module typically consists of a printed circuit board with a relay mounted on it, along with the necessary components to drive the relay. The module also includes terminals for connecting the load and control signals.

Product Features

  • On the board, there are seven MOVs. If a vertical connection is desired, plug connectors are available. It can be used in conjunction with the Mark VI system's main control module as well as a backup protection module.
  • In a triple architecture application, the TRLS module will be used in conjunction with the previously mentioned control module, as well as the IONet and main processor card. When connected to any type of rack, whether a twenty-one or thirteen-slot VME rack, this module will only take up one slot. The model's main visual components include, but are not limited to, metal oxide varistors, sub-D pin connectors, female plug connectors, and many others.
  • During a visual inspection of this board, it is clear that there are two I/O packs on the board. These packs are labeled as discrete output packs and are connected via two sub-D pin connectors. These packs and connectors are located along one edge of the board, depending on how the board is held horizontally, on the top or bottom of the board.
  • On the opposite side of the board, there are two terminal blocks labeled TB1 and TB2. These two terminals are near the metal oxide varistors, of which there are seven. This component also includes flanges that are oriented upward and downward.


  • Double the I/O Packs for Versatility: This I/O module comes equipped with not one, but two I/O packs. This dual-pack configuration enhances its versatility, allowing it to handle a wider range of input and output signals, thus making it a valuable asset in various applications.
  • Guarding Against Voltage Surges: With the inclusion of seven metal oxide varistors, this module stands as a guardian against voltage spikes and surges. These varistors play a pivotal role in safeguarding the connected components, ensuring their reliability and extending their longevity. This protection translates into peace of mind for operators and minimized risks of system disruptions.
  • Reliable Control with 12 Relays: The module boasts an impressive array of 12 relays. These relays serve as efficient switches for high-current loads, allowing precise control over external devices. Whether it's managing motors, heaters, or other high-current equipment, this module steps up to the task with ease and precision.
  • Stable and Secure Connections with Terminal Blocks
    The inclusion of two terminal blocks, labeled TB1 and TB2, further enhances the module's appeal. These terminal blocks simplify the wiring process, enabling convenient and secure connections for the connected devices. Their robust design ensures stable connections, reducing the risk of unwanted disconnections and system downtime.
  • Efficient External Device Control: A relay output assembly is integrated into the module, offering an efficient and reliable solution for controlling external devices. Whether it's triggering alarms, activating safety measures, or managing critical equipment, this module provides the means to do so with confidence.
  • SIL Certification for Safety Assurance: Safety is paramount in critical applications, and this module delivers with its SIL certification. This certification ensures that the module meets the highest safety standards, making it a trustworthy choice for use in critical environments where reliability and safety are non-negotiable.
  • Simplex Configuration for Specific Needs: While it excels in various aspects, it's important to note that this module is designed as a simplex module. It may not be compatible with TMR (Triple Modular Redundancy) setups, but its reliability and features make it a solid choice for specific control system requirements.

Product attributes

Simplex relay output assembly modules are commonly used in applications where a single relay output is needed, such as in machine control or HVAC systems. They are designed to provide reliable switching of loads and can handle a wide range of voltages and currents. Here are some common features of simplex relay output assembly modules:

  • Relay: Includes a single relay that is used to switch electrical loads on and off.
  • Load Capacity: It can handle a range of voltages and currents to meet the needs of various industrial applications.
  • Control Signal Input: The module accepts a control signal from a controller or a switch that determines the state of the relay.
  • LED Indicators: Many simplex relay output assembly modules include LED indicators that provide visual feedback on the state of the relay.
  • Easy Installation: Designed for easy installation with screw terminals for connecting the load and control signals.
  • Compact Size: Designed to be compact and easy to mount on a DIN rail or panel.
  • High Reliability: Reliable switching of loads and has a long service life.


  • Vertical Connection: Plug connectors allow for vertical connections when needed, ensuring flexibility in installation.
  • Sub-D Pin Connectors: Two discrete output packs, prominently labeled, are connected through sub-D pin connectors, situated along one edge of the board. Depending on orientation, they can be located at the top or bottom of the board when held horizontally.
  • Terminal Blocks (TB1 and TB2): These two terminal blocks, conveniently labeled as TB1 and TB2, are positioned in close proximity to the seven metal oxide varistors, enhancing accessibility for wiring and configuration.

Physical Attributes

The board features various visual components, including but not limited to:

  • Metal Oxide Varistors: Seven metal oxide varistors are strategically placed on the board to ensure effective surge protection.
  • Sub-D Pin Connectors: These connectors facilitate discrete output connections.
  • Female Plug Connectors: These connectors enhance the board's connectivity options.

World of Controls has the most comprehensive collection of GE Mark VIe components. Please contact WOC as soon as possible if you require any extra information.

Frequently Asked Questions

What is IS230TRLSH1B?
It is an I/O Module developed by GE

Can the module be used with other Mark VI components?
Yes, the module can be used in conjunction with the Mark VI system's main control module as well as a backup protection module.

What is a triple architecture application?
A triple architecture application refers to the use of three specific components in the Mark VI system: the TRLS module, the IONet, and the main processor card.

What are sub-D pin connectors?
Sub-D pin connectors, also known as D-sub connectors, are electrical connectors commonly used in computer and telecommunications applications. They have a D-shaped metal shell that provides mechanical support and shields the connectors from electromagnetic interference.

What are discrete output packs?
Discrete output packs are a type of I/O pack that provides output signals to a control system. These signals are typically digital, meaning they are either on or off.

How many relays are included in the module, and what types of loads can they control?
The module is equipped with 12 relays. These relays serve as efficient switches for high-current loads, allowing precise control over external devices such as motors, heaters, and more.

How do the terminal blocks (TB1 and TB2) contribute to the module's functionality?
The two terminal blocks simplify wiring and provide secure connections for connected devices. Their robust design minimizes the risk of unwanted disconnections, ensuring system stability.

What is SIL certification, and why is it important for this module?
SIL certification is a safety rating that ensures the module meets rigorous safety standards. This certification is crucial for applications where safety and reliability are paramount, such as critical environments.

Is the module compatible with Triple Modular Redundancy (TMR) configurations?
No, the module is designed as a simplex module and may not be compatible with TMR setups. It is best suited for specific control system requirements where TMR redundancy is not necessary.