GE IS200WROBH1A Relay Fuse Board Mark VIe

IS200WROBH1A GE Mark VIe Relay Fuse Board

Product Introduction

The IS200WROBH1A belongs to the GE Mark VIe series. It works as a relay fuse and power sensing board. Engineers often use it with PDIO discrete input/output modules. This board supports three redundancy modes: simplex, redundant, and TMR. Additionally, it connects easily to TDBS, TDBT, and SRLY terminal boards.

For instance, when you mount the IS200WROBH1A on a TDBS board, it turns the relay section into a unit similar to the IS20TRLYH1B board. This setup provides fused and sensed power to the first six relay outputs. It also supplies dedicated power to the final relay outputs. Meanwhile, in TMR applications, the IS200WROBH1A mounts on a TDBT board. There, it acts like a terminal board combined with a contact input terminal board (TBCI).

Technical Specifications

Below are the key technical details for the IS200WROBH1A:

• Functional Acronym: WROB

• Fuse Value: 3.15 A (default)

• Manual Reference: GEH-6721L

• Redundancy Modes: Simplex, Redundant, or TMR

• Relay Type: TRLY

• Terminal Board Compatibility: TDBTH2, TDBTH4, TDBTH6 (for TMR)

• Other Compatible Boards: TDBS, SRLY, TDBT

Furthermore, the board senses fuse status for six fuse pairs when used with isolated voltage on the TDBS. The IS200WROBH1A does not include onboard fuses beyond the default 3.15 A rating. Users must verify compatibility with their system’s power requirements.

Mechanical and Environmental Parameters

• Dimensions (approx.): 180 mm x 120 mm x 25 mm

• Weight: 0.85 kg (net), 0.95 kg (gross with packaging)

• Operating Temperature: –30°C to +65°C

• Storage Temperature: –40°C to +85°C

• Humidity: 5% to 95% non-condensing

• Mounting: Directly onto compatible terminal boards (TDBS, TDBT, SRLY)

Specifically, the IS200WROBH1A requires no additional mounting hardware. It plugs directly into the terminal board connectors. Always ensure the system is powered off before installation.

Installation Guidelines

Follow these steps to install the IS200WROBH1A correctly:

1. Power down the Mark VIe system completely.

2. Locate the compatible terminal board (TDBS, TDBT, or SRLY).

3. Align the IS200WROBH1A with the connectors on the terminal board.

4. Press firmly until the board seats fully.

5. Secure any locking clips if present on the terminal board.

6. Restore power and verify fuse status via the system diagnostic tool.

Moreover, avoid touching exposed components during handling. Use an anti-static wrist strap to prevent ESD damage. The IS200WROBH1A is not hot-swappable. Therefore, always de-energize the rack before removal or installation.

Packaging List

• One IS200WROBH1A relay fuse and power sensing board

• One anti-static protective bag

• One quick reference card (connector pinout)

Note: Shipping does not include certificates or warranty documents.

Shipping Method: Fedex, UPS, DHL

Frequently Asked Questions (FAQ)

1. Which redundancy modes work with the IS200WROBH1A?
The IS200WROBH1A supports simplex, redundant, and TMR (Triple Modular Redundancy) I/O pack configurations.

2. Can this board replace a TBCI terminal board?
Yes and no. In TMR applications, the IS200WROBH1A mounts on a TDBT board. There, it provides functions equivalent to a terminal board combined with a contact input terminal board (TBCI). However, it is not a direct standalone TBCI replacement.

3. What is the default fuse value on the IS200WROBH1A?
The board comes with a default fuse rating of 3.15 A. This value applies to the fused power distribution for the first six relay outputs.

4. Which terminal boards are compatible with the IS200WROBH1A?
The IS200WROBH1A works with TDBS, TDBT, and SRLY boards. For TMR setups, use TDBTH2, TDBTH4, or TDBTH6 terminal boards.

5. Does the IS200WROBH1A sense fuse status automatically?
Yes. When used with isolated voltage on the TDBS board, the IS200WROBH1A detects the status of the six fuse pairings on the board. This feature helps with diagnostics and maintenance.