Frequency monitors are relays that switch the connected loads on or off when a predefined frequency threshold is exceeded or undershot. Here you will find various versions of the frequency monitors from MRS Electronic.
1.026.11x.xxxE
The Frequency Monitor is used to switch loads on/off when the input signal frequency exceeds/drops below a defined threshold frequency.
1.026.21x.xxxE
The Frequency Monitor 24 V is used to switch loads on/off when the input signal frequency exceeds/drops below a defined threshold frequency.
1.026.311.xxxE