Voltage and frequency monitor Varimeter for voltage and frequency monitoring for self-generation systems on the low-voltage network, greater than 30 KVA in accordance with VDEW guidelines, as an alternative to the isolation point in systems smaller than 30 kVA, if a switching point with a isolating function is available, the frequency is measured 1-phase in phase L1, voltage and frequency monitoring act on separate output relays. If a limit value is exceeded or not reached, the corresponding relays switch to the rest position. - 3-phase voltage measurement against N - Switch-off when voltage increases or decreases - Switch-off when frequency increases or decreases - Switch-off when voltage increases, average value over 10 minutes - Switch-off by frequency and voltage using separate output relays - Switching on or re-switching after an adjustable delay - Protection against setting manipulation using a sealable cover on the rotary switch - Clearly adjustable, immediately readable setting values in accordance with the guideline - High measurement accuracy - Width 70 mm.
