Thermistors Withstand 80A Inrush

Ametherm inrush current limiting NTC thermistors designed to withstand high input energy of 1200J and steady-state currents from 50A to 80A at 680 V. Offered in DIN-rail-mountable packages, MM35-DIN series devices are optimized for power distribution in high-power industrial and green energy applications including variable-frequency motor drives, transformers, wind turbines, large inverters, and single- and three-phase motors.

 

The MM35-DIN series consists of four thermistors featuring resistance at 25 °C from 0.2 Ω to 1.5 Ω, maximum power of 38.4 W, and thermal time constants of less than 300 s. The devices feature diameters of 68.0 mm with thickness of 8.5 mm and 9.5 mm.

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The space- and cost-saving thermistors provide simple one-component alternatives to using power resistors with relays or MOSFETs, greatly simplifying designs. For easy installation, the devices are designed for use with a DIN block. This allows for mounting within a power control box using only a screwdriver. Pricing for U.S. delivery starts at $47.90 each.

 

For more details, checkout a demo video, peruse the datasheet, and/or 800-808-2434 (toll free in the United States) or 775-884-2434 from outside the U.S. and Canada.