Features:
- A8 input role: Installed in the SAMI GS inverter module.
- Rectifier interface: Provides gate-trigger circuits for the rectifier thyristors.
- Protection functions: Uses capacitors, varistors and fan-protection fuses.
SNAT 7902 58424099 connects the drive's incoming rectifier hardware with the control and protection functions assigned to the input card.
Its mixed trigger and protection role makes the exact A8 board identity important during converter troubleshooting.
ABB's component tables tie order code 58424099 to the supported ACS 50X converter groups used for maintenance selection.
Apter Power can assist with document and quotation support for the ABB SNAT 7902 58424099 Input Protection Card.
ABB SNAT 7902 58424099 Input Protection Card Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Trigger stage: Supplies gate-trigger circuits for rectifier thyristors.
- Bridge protection: Capacitors and varistors protect the rectifier bridge.
- Cooling protection: Onboard fuses protect the converter fan circuit.
- Hardware position: ABB assigns the card to position A8.
- 380 V group: Listed across the documented ACS 50X converter-module range.
- 500 V group: Listed across the documented ACS 50X converter-module range.
- Early-unit exception: Selected pre-December-1992 1400 V rectifier units use SNAT 7901.
- 600 V boundary: ABB lists SNAT 7903 for that converter group.
- Overtemperature path: Inspect cooling airflow and fan operation first.
- Card-level check: ABB includes the SNAT 7902 fuses in the fault sequence.
- Transformer check: Confirm the T61 primary and secondary connections.
- Escalation boundary: Continue with approved ABB service support if the fault persists.
- ACS 502: Input-protection service in enclosed SAMI GS drive assemblies.
- ACS 504: Input-protection service in open-chassis converter modules.
- ACS 506: Component selection within the documented SAMI GS converter family.
- Legacy drive maintenance: Exact A8 board identification for rectifier and cooling-protection work.