IS200EPSMG2A

Overview

The IS200EPSMG2A is an Exciter Power Supply Module from GE. It is part of GE's industrial automation product portfolio.

Application & Technical Notes

As an exciter power supply module, the IS200EPSMG2A is intended for deployment in panel-based control cabinets and machine enclosures where the GE product portfolio equipment is installed. It conditions and distributes the low-voltage supply that powers the controller, I/O and communication modules on the same rack.

Key published characteristics include an operating temperature range of -30 to +65°C. These values should be confirmed against the current manufacturer datasheet before final selection, as options and suffixes vary by configuration.

Maintenance & Diagnostics

Respect the published operating temperature window (-30 to +65°C); do not exceed it during commissioning or in enclosed panels without airflow. Ensure adequate ventilation and do not overload the supply beyond its published current budget; consider redundancy for critical racks. Always de-energise the circuit and follow lock-out/tag-out before handling; refer to the official instruction bulletin for service procedures.

Sourcing & Procurement

When sourcing the IS200EPSMG2A, distinguish three supply tiers: (1) genuine GE stock from an authorised distributor; (2) compatible equivalents or surplus/NOS (new-old-stock) from third parties; (3) alternative parts offering equivalent function. Genuine supply carries the full warranty and traceability; compatible or alternative items may be cheaper but should be validated for form, fit, firmware and certification before use in a live system. PLCXpert publishes this page as an independent reference and does not sell the part — verify every claim with the manufacturer or your distributor.

Match the output voltage and current to the GE product portfolio load and allow headroom for future expansion. Lead times and pricing vary by region and lifecycle status; obtain a current quote from an authorised channel rather than relying on stale listings.

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Frequently Asked Questions

Specifications

SPECIFICATIONS: Part Number: IS200EPSMG2A Manufacturer: General Electric Series: EX2100 Product Type: Exciter Power Supply Module Weight: 2 lbs Size: 15.9 cm high x 17.8 cm Operating Temperature: -30 to +65°C Country of Origin: United States Availability: In Stock Manual: GEI-100462A FUNCTIONAL DESCRIPTION: IS200EPSMG2A is an Exciter Power Supply Module Manufactured and designed by General Electric as part of the EX2100 Series used in the GE Excitation Turbine Control System and the EX2100 Regulator Control. EPSM Group 1 modules (EPSMG1) are used in the excitation control system and EPSM Group 2 modules (EPSMG2) are used in the regulator control. EPSMG2 includes an IS200EPSDG_A Exciter Regulator Power Supply Daughter board (EPSD) mounted to it. The EPSM is comprised of 2 major sections, a buck regulator and a push-pull inverter. The buck-regulator converts the input voltage to a 50 V dc intermediate voltage. This intermediate voltage is then applied to a push-pull inverter to create the required multiple output voltages. The transformer used in the push-pull inverter provides high-voltage isolation between the input voltage source and the output supplied to the control system. EX2100 EXCITATION CONTROL SYSTEM APPLICATION: EPSMG1 converts 125 V dc from the power distribution module (PDM) into the voltages required for the EX2100 excitation control. Three independent EPSMG1s supply power to each of the controllers M1, M2, and C. They are mounted in the IS200EPBPG_A Exciter Power Backplane (EPBP) located below the IS200EBKPG_A Exciter Backplane (EBKP) in the control cabinet. Connectors P1 and P2 carry power from the EPSMG1 to EPBP for cables to EBKP and other boards. The EPSMG1 supplies +5 V dc, ±15 V dc, and +24 V dc to the control assembly backplane. Power is also supplied to external modules as follows: ±24 V dc to power the fans, de-excitation module, crowbar module, ground detector module, and field voltage/current module. Isolated +70 V dc for contact wetting to the terminal boards. EX2100 REGULATOR CONTROL APPLICATION: EPSMG2 converts the dc link bus voltage into the voltages required for the EX2100 regulator control. In simplex systems, one EPSMG2 is mounted in the IS200ERBPH_A Exciter Regulator Backplane (ERBP). In redundant systems, one EPSMG2 is mounted in ERBP (M1) and a second EPSMG2 is mounted in the IS200ERRBH_A Exciter Regulator Redundant Backplane (ERRB, M2/C). The EPSD that is mounted on EPSMG2 modifies the power input path to allow EPSMG2 to accept higher voltages by increasing the creep and clearance. It also provides a fuse between the regulator power source (DC link) and the buck regulator. The EPSMG2 supplies +5 V dc, ±15 V dc, and +24 V dc to the ERBP and ERRB. Power is also supplied to external modules as follows: ±24 V dc (P24B/N24B) to power fans, relays, and the dc feedback board Isolated +70 V dc (P70) for contact-wetting on the terminal board, dynamic discharge board, and redundant relay board Isolated 20 V ac (AC17) to power the IGBT gate and dynamic discharge board ±55 V dc (P55/N55) to the ground detector circuits on the options card IS200EPSMG2A Technical Specifications Alphanumeric Catalog Number IS200EPSMG2A Board Description Exciter Power Supply Module Board Type Power Supply Board Contact Wetting Supply 70 VDC VDC Power Supply 5, 15 and 24

Reproduced from the manufacturer's published data. Values marked "Not available" are absent from the source document.

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