Sicherheitstemperaturwächter Gema GmbH The expansion module B for Performance selection:5.5 kW The expansion module B for the Plum ecoMax 850i and Gema Control 920 series offers a well designed and reliable solution for flexibly expanding your heating control system The expansion module C is compatible with the Plum ecoMax 800 and 850 series Safety temperature limiter suitable for all Defro boilers equipped with electronic control Trigger temperature: 85°C
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US$ 75.00
US$ 25.00
US$ 35.99