OpenSprinkler AC Zone Expandion Board
OpenSprinkler AC Zone Expandion BoardOpenSprinkler AC Zone Expandion BoardOpenSprinkler AC Zone Expandion Board

OpenSprinkler AC Zone Expansion Board


Add a Zone Expansion Board to increase the number of stations that can be connected to your OpenSprinkler irrigation controller. Each expansion board adds an additional 16 stations. Control a total of 56 stations by connecting multiple Zone Expansion boards together.

New stock arriving this week

In stock

Product Description

Package includes one assembled and tested OpenSprinkler AC Expansion Board v2.0 and 12-inch extension cable with polarised connectors.

OpenSprinkler’s Zone Expansion Board provides an easy and inexpensive way to increase the number of stations that your OpenSprinkler can operate. Connect multiple Zone Expansion Boards to control up to 56 stations.


OpenSprinkler AC 2.0 – 2.3
OpenSprinkler Pi

This board is NOT compatible with OpenSprinkler DC! Please use the OpenSprinkler DC Zone Expansion board if you have an OpenSprinkler DC irrigation controller.

This board can be used together with Zone Expansion Board v1.1 (8-station, polarized connector). It CANNOT be used together with v1.0 (non-polarized connector).


After adding a Zone Expansion board don’t forget to configure OpenSprinkler and specify the number of stations. The “Station Handling” – “Number of Stations” setting can be found on the “Edit Options” page which is accessible from the main menu.

Always turn off your OpenSprinkler Controller before connecting or disconnecting expansion boards.

Technical Specifications

OpenSprinkler AC Zone Expansion Board hardware version 2.0
Compatible with OpenSprinkler AC hardware version 2.0 – 2.3 and OpenSprinkler Pi
Includes a 12-inch extension cable with polarized connectors.
Injection-molded plastic enclosure.
Each expansion board adds 16 stations.
Maximum output current per zone / station: 800mA continuous (@24V AC), 8A impulse / inrush.

Additional Information

Weight 165 g
Dimensions 150 x 110 x 40 mm