Product Profile of Combined Voltage & Frequency Protector

Rishabh Instruments Pvt. Ltd. Is the manufacturer and supplier of Combined Voltage & Frequency Protector. Rishabh Energy Management Software is an ISO 9001-2000 certified company. The product offers user adjustable trip point for voltage and frequency, plus adjustable time delay settings. The adjustment range for the set point is 25% and it operates between 75% and 100% of the nominal supply for under voltage and between 100% and 125% for over voltage. The Combined Voltage & Frequency Protector is available for single phase systems only.

The salient features of the Combined Voltage & Frequency Protector are:

• Adjustable time delay

• Internal differential

• LED trip indication

• Adjustable set point

• 2 pole relay contacts


The technical specifications of the Combined Voltage & Frequency Protector are:

• Differential - Fixed internally 1 to 15% [Specify]

• Time Delay - Adjustable between 1 and 30 seconds

• Frequency Ranges - 40-60Hz [50Hz] or 50-70Hz [60Hz] or 400Hz

• Nominal Voltage - 120 & 240V a.C.

• Time Delay - Adjustable between 1 and 30 seconds

• Set Point Repeatability - Better than 0.5%

• Voltage Withstand - 12 x continuously

• Voltage Range - Over voltage100 to 125%

• Under voltage - 75 to 100%

• Differential - Fixed internally 0.1 to 3Hz [specify]