EHDB280 Spectrum Driven Contactor

EHDB280 Spectrum Driven Contactor 

Product Details Introduction

The EHDB280 spectrum driven contactor (ABB EHDB280) is a high current contactor specifically designed for DC drive/frequency converter systems, focusing on dynamic braking and high-frequency working conditions, with a 280A level and high reliability.

Brand and model: ABB EHDB280, drive specific type, suitable for DC speed regulation/variable frequency drive system.

Rated current: 280A continuous, suitable for high-power drive circuits.

Main pole configuration: 3 poles (2 normally open+1 normally closed), with normally closed contacts dedicated to dynamic braking.

Voltage resistance level: AC 600V, DC 600V, DC breaking 300V, strong braking ability.

Contact design: Double break point+magnetic blow out arc, high-frequency on-off is not easy to burn.

Coil characteristics: withdrawable high-temperature coil, AC/DC control, voltage range of 85% -110% Un.

Auxiliary contacts: Standard configuration includes 1 open and 1 close, and can be expanded up to 8 points (4 open and 4 closed).

Structural maintenance: The arc groove is easy to disassemble, and the contact inspection and replacement are convenient.

Environmental tolerance: Industrial wide temperature range, suitable for complex working conditions in cabinets/workshops.

Certification compliance: UL/CSA certification, compliant with elevator and industrial drive standards.

Installation method: Fixed panel, neat wiring terminals, suitable for control cabinet layout.

Application scenarios: frequency converters, DC drives, elevators, high-power transmission for metallurgy/papermaking.

Mechanical lifespan: Designed for long lifespan, suitable for high-frequency start stop and braking cycles.

Anti interference: EMC optimization, adapted to industrial strong electromagnetic environments.

Adaptation and replacement: Factory compatible, used for new machine matching and old drive system transformation.

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