Thermostat NC (normally closed) Thermostat opens on temperature rise - for regulating heaters or for switching signal devices. Comes with red temperature dial.

Thermostat NO (normally open) Thermostat closes on temperature rise - for regulating filter fans and heat exchangers or for switching signal devices. Comes with blue temperature dial.

Thermostat NC (normally closed): Thermostat opens at temperature rise - for regulating heaters or for switching signal devices. Comes with red temperature dial. Thermostat NO (normally open): Thermostat closes at temperature rise - for regulating filter fans and heat exchangers or for switching signal devices. Comes with blue temperature dial.

The FZK 011 mechanical thermostat is used for controlling heating and cooling equipment, filter fans or signal devices where a higher degree of sensing accuracy is required. An integrated resistor (RF) can be connected to improve the switch temperature difference.1) The thermostat registers the surrounding air and can switch both inductive and resistive loads via snap-action contact.