GE IS200EXAMG1BCB | EX2100 Exciter Attenuation Module

Description

• Model & Brand: GE General Electric IS200EXAMG1BCB
• Series: EX2100 / EX2100e Excitation Control
• Part Type: EXAM Exciter Attenuation Module
• Functional Acronym: EXAM
• Primary Application: Exciter field-ground detection interface
• Installation Location: High-voltage interface area within the EX2100 auxiliary cabinet
• Reported Dimensions: Approximately 180 × 115 × 35 mm; verify actual serialized hardware before cabinet engineering
• Estimated Net Weight: Approximately 0.60 kg; confirm packed freight weight before shipment
• Connectors: J1 3-pin locking connector; J2 9-pin D connector; E1/E2 high-voltage stab-on connections; TB1 shield-ground terminal
• Adjustable Jumpers: JP1, JP2, JP3
• What’s in the Box: IS200EXAMG1BCB module and ESD protective packaging; cables, mounting hardware, and documentation only when explicitly included on the PO
• Handling Class: High-voltage-associated, ESD-sensitive PCB; protect the connector assembly, jumper positions, and insulating structure during storage and transport

GE technical documentation identifies the EXAM as the attenuation interface used with the EGDM Exciter Ground Detector Module. It scales the excitation-system field voltage to a level suitable for ground-fault detection circuitry. The EXAM has no onboard test points, fuses, or LED indicators.

Product Introduction

Compliance Hook

The IS200EXAMG1BCB is part of a generator excitation-system protection function, so exact replacement identity carries more significance than ordinary signal-board procurement. The EXAM attenuates high-voltage signals from the excitation bridge before those signals reach the EGDM ground-detection circuitry. In an operating generator, incorrect attenuation or an incorrect jumper configuration can compromise the intended field-ground monitoring function.

For asset-control purposes, retain the complete number IS200EXAMG1BCB, together with the hardware revision and installed jumper configuration. GE’s board-identification guidance states that all digits of the complete part number are important when ordering replacements; the functional-revision code can affect compatibility, while artwork revisions are backward-compatible.

Core Technical Specifications

*The dimensional, environmental, power, and weight figures are independent supplier data rather than a verified GE mechanical drawing. Use the physical nameplate and approved GE documentation as the final acceptance basis.

GE IS200EXAMG1BCB

🚨 Global Compliance & Industry Certifications

• CE Mark: Do not assume standalone CE conformity for the bare EXAM PCB. Certification should be tied to the applicable GE excitation-system configuration.
• UL / cUL: No exact standalone UL/cUL certificate was verified for IS200EXAMG1BCB from the documentation reviewed. Do not enter a certificate claim into the asset register without documentary evidence.
• ATEX / IECEx: No standalone ATEX/IECEx certification was verified for this exact board. If the excitation equipment is installed in a classified area, the complete certified installation remains controlling.
• Marine Approvals: No exact DNV, ABS, or other marine certificate was verified for .
• Electrical Safety: The board interfaces with excitation-system voltage through E1/E2 and therefore requires cabinet-level isolation and safety controls before maintenance. The EXAM documentation specifically describes its connection to the field-bus voltage and the associated ground-detection circuit.
• EMC: The EXAM forms part of the EX2100 excitation architecture, where shielding and correct grounding are important because the board is installed near high-energy excitation equipment.

A high-voltage interface board should never be classified as hazardous-area equipment solely because the generator plant has a hazardous-area designation. Certification scope must be verified against the complete equipment and installation.

Verify specific lot certifications with OEM.

🚨 Long-Term Storage & Asset Preservation Guide

Keep in an ESD shielding bag and maintain the original mechanical protection. The board has several exposed connection points, including the E1/E2 stab-on interfaces and the J1/J2 connectors. Avoid contact between those interfaces and packaging materials that can shed fibers or retain moisture.

Control warehouse humidity below 60% RH where practical. Moisture is particularly undesirable around PCB contacts, jumper headers, and the insulating structure surrounding high-voltage interfaces. Long-term storage should avoid condensation cycles and unconditioned outdoor containers.

Photograph JP1, JP2, and JP3 before placing the board into spare inventory. These jumpers configure the module for different PPT secondary-voltage conditions, making the stored configuration record operationally important.

Do not apply generic electrical-preservation procedures without board-specific evidence. No verified GE instruction requiring periodic capacitor reforming for this exact assembly was established. Use controlled inspection and functional testing before installation instead.

Physical Installation Prerequisites

Install the EXAM only in the specified GE EX2100/EX2100e excitation-system high-voltage interface architecture. The module is not a generic attenuation board.

The J1, J2, E1, E2, and TB1 connections must be matched exactly. GE documentation identifies J2 as the interface for test signal, relay control, and leakage-current functions; J1 interfaces with the field-flashing relay auxiliary contact; E1/E2 carry field-bus voltage; and TB1 bonds the board shield ground to the cabinet chassis.

No reliable GE requirement for a universal 50 mm clearance around the standalone EXAM was verified. Preserve the original auxiliary-cabinet arrangement and provide adequate working room for connector engagement, jumper inspection, grounding, insulation barriers, and service access.

De-energization is mandatory before physical replacement. The EXAM is directly associated with excitation-system high-voltage sensing. Follow the applicable GE shutdown and isolation procedure, verify absence of hazardous voltage with approved equipment, and apply the plant’s lockout/tagout process before touching E1/E2 or associated wiring.

Before installation, compare the replacement board’s three jumper positions with the removed board. GE replacement guidance specifically instructs technicians to verify the jumper positions on the new EXAM against the original.

Buyer’s FAQ — Logistics & Compliance Focus

Q1. What HS tariff code should be used for GE ?
Do not treat a supplier-provided tariff number as universally valid. One independent source reports 85389091 for the EXAM board, but the final HS classification depends on the destination country’s tariff schedule and customs interpretation of a dedicated excitation-control module. Use an accurate customs description such as “GE Exciter Attenuation Module, ” and have the broker validate the destination-specific code.

Q2. What should be declared as the Country of Origin?
Several independent listings identify the hardware as U.S.-manufactured, but COO must be established from shipment-specific evidence rather than the brand name. Retain a supplier declaration or manufacturer-origin document tied to the actual unit or lot.

Q3. Should shipping insurance cover the replacement value?
Yes, especially where the EXAM is the last available spare for an operating excitation system. The board weighs roughly 0.6 kg, yet its downtime exposure can be considerably higher. Record the serial number, physical condition, declared value, package dimensions, and photographs before carrier handoff.

Q4. Does include the latest firmware pre-loaded?
No standalone firmware-loading function is established for the EXAM itself. This is an attenuation and signal-interface board rather than a general-purpose programmable controller. The critical configuration data is hardware-based, particularly JP1/JP2/JP3, connector wiring, and the relationship between EXAM and EGDM.

Q5. What receiving documentation should be retained for an audit?
Record the complete number, serial number, revision information, COO evidence, certification documents where applicable, package condition, and photographs. Add the JP1/JP2/JP3 configuration and connector identification to the asset record; that information is essential when the spare is eventually installed. GE’s replacement guidance specifically calls for jumper verification during EXAM replacement.