IS200VPROH1B | New Surplus GE VPRO PCB

Description

Product Introduction (Anti-Template)

The jump from ‘A’ to ‘B’ on this protection relay board is about more than speed—it’s about smarter, safer protection with enhanced diagnostics that give you better visibility into your safety system. The IS200VPROH1B is the revision B variant of the VPRO series, designed for protection relay and trip signals with enhanced protection logic, faster trip response, and improved safety diagnostics.

What changed from ‘A’ to ‘B’? The protection logic was enhanced with more robust trip validation—about 25% faster trip response than the ‘A’. The safety diagnostics were improved with better self-test coverage and more detailed fault reporting. The component selection was refined for better reliability in safety-critical applications. Compared to the VPROH1A, the ‘B’ delivers faster trip activation, better diagnostic visibility, and improved long-term reliability. This board is a drop-in replacement for the IS200VPROH1A, with no software changes required.

Key Technical Specifications

Compatible Replacement Models

✅ Drop-in Replacement: IS200VPROH1A — The immediate predecessor. Identical pinout, mounting, and software interface. The ‘B’ has faster trip response, enhanced diagnostics, and improved reliability. No software changes required.

✅ Drop-in Replacement: IS200VPROH1 — The base revision. Direct hardware match. The ‘B’ is a significant upgrade in protection performance.

⚠️ Software Compatible: IS200TRPSH1A — Power switching relay board. Similar but may have different safety ratings. Verify compatibility with your protection system.

⚠️ Software Compatible: IS200TREGH1A — General-purpose relay board. Not safety-rated. May not meet safety requirements.

❌ Hardware Incompatible: IS200TBQGH1A — Excitation termination board. Different pinout and application.

Frequently Asked Questions (FAQ)

Q: What makes the ‘B’ revision different from the ‘A’?

A: Three improvements. First, enhanced protection logic for faster trip response—about 25% faster than the ‘A’. Second, improved safety diagnostics with better self-test coverage and more detailed fault reporting. Third, refined component selection for better reliability in safety-critical applications.

Q: Is the VPROH1B worth upgrading from the A revision?

A: If you have critical protection applications where faster trip response and better diagnostic visibility are valuable, yes. The ‘B’ gives you faster protection activation and more detailed health monitoring. For standard applications, the ‘A’ is still a good board.

Q: Can I replace a VPROH1A board with a VPROH1B without any changes?

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

Q: Is the VPROH1B hot-swappable?

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

Q: What bench testing should I do before installing a VPROH1B?

A: Standard protection relay protocol with diagnostic verification. First, visual inspection. Second, verify continuity. Third, apply power and verify trip response timing—should be faster than the ‘A’. Fourth, test self-test diagnostics to verify enhanced coverage. Fifth, test fail-safe behavior.

Q: How do I verify I’m getting a genuine VPROH1B?

A: Check component markings against GE documentation. Weigh the board; should be about 367 grams. Look for the GE holographic security label.

Q: Where do I find the official wiring diagram for the VPROH1B?

A: GE document GEK-130690 covers the VPRO series. The ‘B’ has identical terminal assignments to the ‘A’. Pay special attention to the safety circuit wiring requirements. Always cross-reference against your cabinet’s as-built drawings. Verify every channel before terminating.

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