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Grid resistors boast high power ratings up to 6.5kW

Posted: 19 May 2014     Print Version  Bookmark and Share

Keywords:Vishay Intertechnology  grid resistor  renewable energy  industrial system 

Vishay Intertechnology Inc. has unleashed a series of high-power, high-current grid resistors. According to the company, Vishay Milwaukee GRE1 devices combine high power ratings to 6.5kW and high operating temperatures to 400°C with a robust design, giving designers a convenient drop-in replacement for similar solutions.

Vishay Milwaukee GRE1

With high power capability from 1-6.5kW at 40°C, the grid resistors are optimised for capacitor pre-charge and discharge, dynamic braking, load testing, heater and neutral grounding applications in locomotives, harmonic filters, and renewable energy and industrial systems. The devices feature a wide resistance range from 0.1-24Ω, with tolerance of 10 per cent and low inductance from 5-40uH.

Featuring a steel plate element, ceramic insulators and multiple taps, the GRE1 series provides high reliability with a welded construction and double insulation for maximum cooling efficiency. Offered in modular or custom designs, the industrial power resistors can be mounted in IP00, IP20 and IP23 enclosures for indoor and outdoor use.

Samples and production quantities of the GRE1 series grid resistors are available with lead times of four weeks.

Datasheet: (GRE1)

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