IS200TRPGH2B | GE Mark VIe TRPG General Purpose Relay

Description

Product Introduction (Anti-Template)

When you need more general-purpose relay outputs per board without sacrificing contact reliability, the H2 density with the ‘B’ revision is your solution. The IS200TRPGH2B is the high-density version of the TRPG series with the ‘B’ revision’s upgraded relay contacts and enhanced coil suppression. This board handles general-purpose relay outputs for a wide range of turbine control and monitoring tasks—but with about 50% more channels than the H1 variant, all with improved contact life and protection.

What does the H2 density with the ‘B’ revision deliver? The H2 variant offers significantly more relay outputs per board than the H1, saving valuable rack space. The ‘B’ revision brings upgraded contact alloy for better resistance to arcing (about 35% longer contact life under cycling conditions) and enhanced coil suppression to protect Mark VIe output drivers. Compared to the TRPGH2A, the ‘B’ offers substantially better contact reliability in high-cycle applications. This board is a drop-in replacement for the IS200TRPGH2A, with no software changes required.

Key Technical Specifications

Compatible Replacement Models

✅ Drop-in Replacement: IS200TRPGH2A — The immediate predecessor. Identical pinout, mounting, and software interface. The ‘B’ has upgraded contact alloy and improved coil suppression. No software changes required.

✅ Drop-in Replacement: IS200TRPGH2 — The base revision. Direct hardware match. The ‘B’ is a significant upgrade in contact life.

⚠️ Software Compatible: IS200TRPGH1B — Lower-density H1 variant. Fits the same slot but has fewer relay outputs. Requires software reconfiguration to map I/O assignments. Budget 4-6 hours.

⚠️ Software Compatible: IS200TREGH2B — Similar high-density general-purpose relay board. Verify compatibility with your specific application before substituting.

⚠️ Software Compatible: IS200TBCI1A — General-purpose I/O board. Requires external interposing relays and complete hardware/software rework. Budget 6-8 hours.

❌ Hardware Incompatible: IS200TPROH2A — Triac output board. Different switching characteristics.

Frequently Asked Questions (FAQ)

Q: What’s the difference between the H1 and H2 variants of the TRPG series?

A: The H2 variant has higher channel density—more relay outputs per board than the H1. Typically H2 offers about 50% more outputs, saving rack space when you have dense relay requirements. The contact ratings are the same; just more channels per board.

Q: What improvements does the ‘B’ revision have over the ‘A’ for the H2 variant?

A: Same improvements as the H1B. Upgraded relay contact alloy for better arcing resistance and about 35% longer contact life, plus enhanced coil suppression to reduce back-EMF stress on output drivers.

Q: Can I replace a TRPGH2A board with a TRPGH2B without any changes?

A: Yes. The ‘B’ is a drop-in replacement. No software changes, no wiring changes, no configuration changes.

Q: What types of loads can the TRPGH2B switch?

A: The TRPGH2B is designed for general-purpose relay outputs—indicator lights, interposing relays, small contactors, and other low-to-moderate power loads. The upgraded contacts make it suitable for more demanding cycling applications.

Q: What are the thermal considerations for the H2 variant?

A: The higher relay density means more heat in the same footprint. We recommend at least 200 CFM airflow across the rack. The ‘B’ revision’s upgraded contacts run slightly cooler than standard contacts, but density still demands good ventilation.

Q: Is the TRPGH2B hot-swappable?

A: We advise against hot-swapping relay boards. Power down the cabinet segment before swapping.

Q: What bench testing should I do before installing a TRPGH2B?

A: Standard relay protocol with thermal stress testing. First, visual inspection. Second, verify continuity on all channels. Third, measure contact resistance. Fourth, apply power and verify each relay actuates correctly. Fifth—critical for H2—run a 48-hour thermal stress test at 50°C ambient with all relays cycling.

Q: How do I verify I’m getting a genuine TRPGH2B?

A: Check the relay markings—the contact alloy is different from the ‘A’. Weigh the board; due to higher channel density, it should be about 395 grams. Look for the GE holographic security label.

Q: What’s the expected lifespan of the TRPGH2B?

A: With proper cabinet cooling, these boards typically run 20+ years. The higher density means more heat—ensure adequate cabinet airflow. The upgraded contacts extend relay life significantly over the ‘A’ revision.

Q: Where do I find the official wiring diagram for the TRPGH2B?

A: GE document GEK-130547 covers the TRPG series. The H2 variant is detailed in the section specific to that configuration. Pay special attention to the higher channel count—terminal numbering is different from the H1. Always cross-reference against your cabinet’s as-built drawings. Verify every channel before terminating.

GE IS200TBAIH1C PLC
WOODWARD 9907-164 PLC
Rexroth FWA-PPCR0*-GP*-09VRS-MS-P2XXXXPPC-R02.2N-N-NN-P2-NN-FW