5KW Metal Tube Dynamic Braking Resistors Suitable For High Mechanical Strength Occasions

‌5KW Metal Tube Dynamic Braking Resistors Suitable For Occasions With High Mechanical Strength

The function of the metal tube resistance box: 

Current and resistance control ‌
By adjusting the resistance value of the internal metal tube resistor, the metal tube resistor box realizes the accurate limit and voltage division of the circuit current 13. For example, in the elevator control system, the current intensity of the metal tube circuit is adjusted to ensure stable signal transmission and avoid short-circuit or component burn caused by overcurrent 15.

‌ Overload protection ‌
The high strength structure of the metal tube resistor can withstand instantaneous high current impact (such as reverse EMF during elevator emergency stop), and protect critical electronic equipment such as frequency converters and servo drives by voltage divider and current limiting.

304 stainless steel base ‌ : High-purity 304 stainless steel tube body, the surface is polished to form a smooth structure, which effectively reduces dust accumulation and local hot spot formation.

‌Heat Conduction optimization ‌ : Smooth surfaces increase the effective heat dissipation area.

Corrosion resistance ‌ : seamless smooth tube blocks the oxygen penetration path, significantly retards the high temperature oxidation process.

The difference between porcelain tube resistance box and heating tube resistance box

heating tube resistance box

Core element: metal resistance wire encapsulated in a metal tube, filled with thermal insulation material around.
Shell: usually metal material, high temperature resistance and high mechanical strength.
Features: Compact structure, heat directly through the resistance wire, heat transfer through the metal tube.

Porcelain tube resistance box

Core element: Resistance wire wound on ceramic tube, ceramic itself as insulation and support material.
Shell: May be a metal or ceramic frame, depending on the insulation of the ceramic.
Characteristics: Ceramic high temperature resistance but brittleness, resistance wire direct exposure or indirect heat transfer through the ceramic.