Passives

Resistors combine power ratings to 24kW with temperatures to 400°C

25th November 2015
Jordan Mulcare
0

Vishay Intertechnology has introduced a series of high-power, high-current grid resistors. Offering designers a convenient drop-in replacement for competing solutions, Vishay Milwaukee GRE2 devices, a product line of Vishay Dale Resistors, combine high power ratings to 24kW and high operating temperatures to +400°C with a robust design.

With high power capability from 4 to 24kW at +40 °C, the grid resistors released are optimised for capacitor pre-charge and discharge, dynamic braking, load testing, heater and neutral grounding applications in locomotives/transit systems, harmonic filters, renewable energy systems, and industrial systems. The devices feature a wide resistance range from 0.25 to 50Ω, with tolerance of ± 10%, and low inductance from 10 to 40µH. 

Featuring a stainless steel plate element, ceramic insulators and multiple taps, the GRE2 series provides high reliability with a welded construction and double insulation for maximum cooling efficiency. Offered in modular or custom designs, the RoHS-compliant industrial power resistors can be mounted in IP20 (indoor rated) and IP23 (outdoor rated) enclosures to offer the optimised level of protection for the application. 

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