GE DS200ITXSG1A DS200ITXSG1ABB Inverter Snubber Board

This GE DS200ITXSG1A DS200ITXSG1ABB Inverter Snubber Board protects inverter IGBT modules from voltage transients. The board connects directly across each IGBT in the inverter bridge circuit. You will find this component in many GE drive and excitation systems. The DS200ITXSG1ABB variant includes the standard factory configuration without conformal coating.

Technical Specifications

Parameter	Specification
Full Model	GE DS200ITXSG1A DS200ITXSG1ABB Inverter Snubber Board
Category	Inverter Snubber Board
Number of Channels	6 Independent Snubber Circuits
Resistor Value	12 Ω, 50W Non-Inductive per Channel
Capacitor Value	0.47 µF, 1200V Polypropylene per Channel
Peak Voltage Rating	1200 V
dv/dt Suppression	700 V/µs Maximum
Dimensions (H x W)	200 mm x 140 mm
Weight	Approximately 0.75 kg
Connectors	6 x Quick-Disconnect Terminals
Component Count	12 Resistors, 6 Capacitors, 6 Diodes
Energy Storage	0.47 µF per Channel (Total 2.82 µF)

Transient Suppression and Protection Features

The GE DS200ITXSG1A DS200ITXSG1ABB Inverter Snubber Board limits voltage spikes across each IGBT during turn-off. Each channel combines a 12 Ω resistor with a 0.47 µF capacitor. This RC network absorbs energy from parasitic inductances in the DC bus. Furthermore, the card includes a fast recovery diode in series with each resistor. Consequently, your IGBT modules operate safely under harsh switching conditions.

Installation and Connection Steps

Mount this GE DS200ITXSG1A DS200ITXSG1ABB Inverter Snubber Board near the IGBT bridge in the drive cabinet. First, connect each channel’s terminals across one IGBT’s collector and emitter. After that, verify all six connections match the correct phase assignments. Then, secure the board using four M3 mounting screws. Finally, check that no terminals touch adjacent circuits before powering up.

Energy Discharge and Safety Notice

This GE DS200ITXSG1A DS200ITXSG1ABB Inverter Snubber Board stores energy in its six capacitors. Therefore, you must wait at least one minute after power removal. The capacitors discharge through their series resistors naturally. Never short the terminals to discharge them faster.

Status Indication and Diagnostics

This snubber board has no active indicators or LEDs. However, you can test each RC network with an LCR meter. A failed capacitor typically shows as a short or open circuit. A burned resistor indicates excessive switching energy in that phase. The series diode may fail short under extreme reverse voltage conditions.