IS410SRLYS2A IS400SRLYS2ABB GE Simplex Terminal Board
The IS410SRLYS2A and IS400SRLYS2ABB are simplex terminal boards of the GE Mark VIe series. Here is a detailed introduction:
- General Information
- Model and Series: The IS410SRLYS2A is a specific model of the simplex relay output (SRLY) terminal board. The IS400SRLYS2ABB might be an alternative or related version. They both belong to the GE Mark VIe series, which is widely used in industrial control systems, especially in applications like distributed turbine control.
- Hardware Structure
- Terminal Block Type: The IS410SRLYS2A is equipped with pluggable, euro - style box - type terminal blocks, which offer reliable connections and are convenient for wiring and maintenance.
- Connector: It has two connectors that can accept a variety of optional daughter - boards, enhancing the functionality and expandability of the terminal board.
- Functional Characteristics
- Relay Output: The IS410SRLYS2A is a simplex S - type terminal board that can accept a YDOA I/O pack and provide 12 form - C relay output circuits through 48 customer terminals. These relay outputs can be used to control various external devices, such as motors, solenoid valves, and contactors, enabling the implementation of different control logic in industrial automation scenarios.
- Position Feedback: Each relay on the SRLY uses an isolated contact pair as position feedback to the I/O pack, which helps the control system monitor the status of the relays in real time and ensure the accuracy and reliability of the control system.
- Optional Daughter - boards
- IS400WROBH1A: It can turn the SRLY into the functional equivalent of the TR LYS 1B. This option provides fused and sensed power distribution to the first six relays and dedicated power to the last relay, adding power protection and monitoring functions to specific relays.
- IS400WROFH1A: This daughter - board puts a single fuse in series with each relay common connection and includes fuse voltage feedback. It can protect each relay circuit from over - current and provide voltage feedback information for fault diagnosis.
- IS400WROGH1A: It distributes power from an input connector to each relay through a single fuse and also includes fuse voltage feedback, which realizes centralized power distribution and protection for the relays.
- Performance Advantages
- Compact Design: The terminal board has a compact structure, and its physical size, customer terminal locations, and I/O pack mounting are the same as other S - type terminal boards. It allows for double stacking of terminal boards, which can save space in the control cabinet and is convenient for system integration and expansion.
- High Reliability: As part of the GE Mark VIe series, it inherits the high - reliability characteristics of the series. It undergoes strict quality control and testing to ensure stable operation in harsh industrial environments, meeting the high - reliability requirements of industrial applications.
- Applications
- Industrial Automation: It is widely used in industrial automation systems to control the on - off of various devices, realize the interlocking and sequence control of production processes, and improve production efficiency and quality.
- Power Generation and Distribution: In power plants and substations, it can be used to control the switching of circuit breakers, the on - off of power distribution equipment, and the monitoring and control of power systems.




