Shema Mc 31 1 -

An alarm system component used to detect the state of doors or windows (open/closed).

The most common technical reference for "MC 31" is the . This device is widely used in power substations for feeder protection. shema mc 31 1

It monitors three-phase current and detects earth faults, providing protection for electrical feeders in low to high-voltage systems. An alarm system component used to detect the

In the context of , "31 1" might refer to a specific version or coordinate set for a building schematic . shema mc 31 1