Product Profile of Over Under Voltage Relay

Larsen & Toubro Limited Over Under Voltage Relay, offered in model MV12. Larsen & Toubro Limited is an ISO 9001 certified company. The Over Voltage/Under Voltage Relay is an electronic numerical single-phase voltage relay. The Over Under Voltage Relay can be used for Over voltage or Under voltage protection schemes in MV, LV and HV power distribution systems. This Over Under Voltage Relay can also be used in over voltage protection of capacitors, AC circuits, machines like synchronous motor, generators and under voltage protection of induction motors, AC circuits, automatic change over schemes etc. The Over Under Voltage Relay is applicable for flush mounting. This Over Under Voltage Relay is compact in size that saves the panel space. The Over Under Voltage Relay features a draw-out construction which provides an easy installation and maintenance. The Over Under Voltage Relay features the following:

• Draw-out case.

• Self test facility.

• Test feature - helps maintenance

• LED indication for power ON and trip status

• Easy setting through front panel DIP Switches.

• Compact, light weight helps in reducing panel size and thickness.

• Field selectable trip times -Inverse -Definite time
Technical Specification of the Over Under Voltage Relay are as follows: Rating

• Current In: 1Amp or 5Amp
Frequency:

• 50 Hz +2.5Hz

• 50 Hz -2.5Hz

• Aux. Power supply:

• 88V to 264V AC/DC

• 20V to 110V AC/DC or
Settings:

• Mounting: Projection

• Frequency: 50Hz +/- 5percent

• Temperature: 0 to 55 Deg. Cent.

• Starting current: 0.4 percent of Ib

• Over load capacity: 400 percent of Ib

• Display 6: digit Stepper Motor Counter

• Dim WxHxD in mm: 164.5 x 214x 66.5