Description
Product Introduction (Anti-Template)
When standard relay boards can’t handle the current draw of your field devices, you need a board with higher contact ratings—and that’s exactly what the TRPS delivers. The IS200TRPSH1A is the TRPS (Terminal Board Relay Output – Power Switching) variant for the Mark VIe system, designed for applications requiring relay outputs with higher current-carrying capability than standard general-purpose boards. This board handles power switching relay outputs for contactors, motor starters, and other higher-current loads.
The ‘H1A’ designation indicates the first variant with the ‘A’ revision. The key differentiator of the TRPS series is its higher relay contact ratings—typically 10A or more, compared to the 5A ratings of standard TRPG boards. The ‘A’ revision represents minor refinements—improved arc suppression and updated component selection. Compared to the base IS200TRPSH1, the ‘A’ adds better contact protection for longer life under heavier loads. This board is a drop-in replacement for the IS200TRPSH1, with no software changes required.
Key Technical Specifications
| Parameter | Value / Detail |
|---|---|
| Manufacturer | General Electric (GE) |
| Part Number | IS200TRPSH1A |
| Series | Mark VIe Speedtronic |
| Function | TRPS Termination Board (Power Switching Relay Output) |
| Nominal Voltage | 24V DC |
| Output Type | Relay (higher-current rating) |
| Channel Count | Dependent on H1 configuration |
| Contact Current Rating | Higher than standard TRPG (typically 10A+) |
| Arc Suppression | Improved in ‘A’ revision |
| Connector Type | 37-pin D-sub and terminal blocks |
| Mounting | DIN-rail or chassis mount |
| Operating Temp | 0 to 60°C (ambient) |
| Relative Humidity | 5% to 95% (non-condensing) |
| Compatible Rack | Mark VIe IS200 series backplane |
Compatible Replacement Models
✅ Drop-in Replacement: IS200TRPSH1 — The base revision without the ‘A’ suffix. Identical pinout, mounting, and software interface. The ‘A’ revision has improved arc suppression. No software changes required.
⚠️ Software Compatible: IS200TRPGH1A — General-purpose relay board with lower current rating. May not be suitable for higher-current loads. Verify contact ratings before substituting.
⚠️ Software Compatible: IS200TPROH1A — Triac output board. Handles AC loads only. Different switching characteristics. Requires software reconfiguration if replacing.
⚠️ Software Compatible: IS200TBCI1A — General-purpose I/O board. Requires external high-current relays and complete hardware/software rework. Budget 6-8 hours.
❌ Hardware Incompatible: IS200TBQGH1A — Excitation termination board. Different pinout and application. Not applicable.
Frequently Asked Questions (FAQ)
Q: What makes the TRPS different from standard relay boards?
A: The TRPS has higher relay contact current ratings—typically 10A or more, compared to the 5A ratings of standard TRPG boards. This makes it suitable for switching contactors, motor starters, and other higher-current loads.
Q: What types of loads can the TRPS board switch?
A: The TRPS is designed for higher-current relay applications—contactors, motor starters, heater circuits, and other loads that exceed the rating of standard general-purpose relay boards.
Q: Can I replace a TRPS board with a standard TRPG board?
A: Not without verifying the current rating. The TRPG has lower contact ratings. If your load exceeds 5A, the TRPG is not suitable. The TRPS is the correct board for higher-current applications.
Q: What improvements does the ‘A’ revision have over the base TRPSH1?
A: The ‘A’ revision has improved arc suppression to protect the higher-current contacts during switching, extending contact life under load.
Q: Can I replace a TRPSH1 board with a TRPSH1A without any changes?
A: Yes. The ‘A’ is a drop-in replacement. No software changes, no wiring changes, no configuration changes.
Q: Is the TRPS board hot-swappable?
A: We advise against hot-swapping relay boards—especially high-current relay boards where arcing potential is greater. Power down the cabinet segment before swapping.
Q: What bench testing should I do before installing a TRPS board?
A: Standard relay protocol with load testing. First, visual inspection. Second, verify continuity. Third, measure contact resistance. Fourth, apply power and verify each relay actuates correctly. Fifth, apply a test load (at the rated current) and verify contact performance under load. Sixth, run a 24-hour cycle test at 50°C ambient.
Q: How do I verify I’m getting a genuine TRPS board?
A: Check the relay markings—they should show higher current ratings than standard relays. Weigh the board; due to heavier relays, it should be about 390 grams. Look for the GE holographic security label.
Q: What’s the expected lifespan of the TRPS?
A: With proper cabinet cooling and clean power, these boards typically run 20+ years. The higher-current relays are more robust than standard relays, but switching under load will still cause contact wear over time.
Q: Where do I find the official wiring diagram for the TRPSH1A?
A: GE document GEK-130549 covers the TRPS series. The H1 variant is detailed in the section specific to that configuration. Pay special attention to load ratings—wiring gauge must match the higher current requirements. Always cross-reference against your cabinet’s as-built drawings. Verify every channel before terminating.

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