Identity
Match the complete commercial model and visible product structure.
Elevator Board
An elevator relay/interface board identified by the 591811 model and its distinctive multi-relay layout.

| Item | Specification |
|---|---|
| Product identity | 591811 elevator board |
| Visible structure | Four relay positions, multiple plug connectors and mounting holes |
Match the complete commercial model and visible product structure.
Confirm the listed specification against the installed unit and approved project documents.
Confirm mounting, connectors and wiring for the selected configuration.
| Commercial model | Specification |
|---|---|
| SH-591811 | Elevator Board |
| SH-591877 | Elevator Board |
| SH-591886 | Elevator Board |
This model is an elevator board with four relay positions and multiple plug connectors.
Match the complete board identity, connector positions, relay layout, mounting holes and board revision with the installed unit.
No. Confirm the exact board revision, supply and connector assignment from the installed board and approved controller documentation.
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