The BL1S and BL7S are mechanical multi-tariff single-time switches with daily or weekly program. They allow individual adjustment of the heating period within 24 hours, every 15 minutes or every day in 24 hours, as well as every 2 hours in order to avoid expensive peak hours. They enable the control of electric immersion heaters with a capacity of up to 3,000 watts. Switching between the operating modes automatic, fixed ON and OFF can be made using a hand switch. These models are distinguished by a simple and modern design with a low profile and easy installation.

The BL1S and BL7S are mechanical multi-tariff single-time switches with daily or weekly program. They allow individual adjustment of the heating period within 24 hours, every 15 minutes or every day in 24 hours, as well as every 2 hours in order to avoid expensive peak hours. They enable the control of electric immersion heaters with a capacity of up to 3,000 watts. Switching between the operating modes automatic, fixed ON and OFF can be made using a hand switch. These models are distinguished by a simple and modern design with a low profile and easy installation.