Products Description
Manufactured by winding stainless‑steel alloy resistance wire onto an insulated frame and performing insulated encapsulation, Stainless Steel Wire Wound Load Resistor is widely applied in electrical equipment loading, energy‑consumption braking and discharge testing. It works reliably over a broad temperature range of ‑40℃ to 250℃, with strong resistance to current surges, high mechanical strength and good anti‑rust properties. Its wire‑wound structure forms clear heat‑dissipation paths for stable power‑handling capacity and tolerance against short‑term overloads. Compared with conventional constantan‑wire resistors, stainless‑steel material provides better corrosion resistance for harsh high‑humidity and heavy‑dust environments. Built with a rugged, vibration‑resistant structure to prevent wire breakage, Stainless Steel Wire Wound Load Resistor is extensively used for frequency‑converter braking, power‑supply load testing and energy‑dissipation tasks in electric‑control systems, meeting continuous energy‑consumption demands under high‑power operating conditions.
Product Advantages
Strong Overload Capacity
It withstands short‑term high‑current surges far exceeding normal operating conditions without instant fusing or structural damage, offering excellent adaptability to diverse working conditions.
Stable Load Performance
Resistance values stay uniform across the full power range, with no significant deviation caused by prolonged temperature rise, thus ensuring stable load‑carrying accuracy.
High Heat Dissipation Efficiency
Stainless‑steel wire has favourable thermal conductivity. Combined with dedicated heat‑dissipation structures, it quickly dissipates operating heat and prevents local heat accumulation.
Excellent Vibration Resistance
Professionally optimised winding and fastening structures prevent wire loosening and fracture under heavy‑vibration working conditions.
Broad Compatibility
It can be directly connected to most high‑power load scenarios and quickly put into service without extensive modification to existing circuits.
Product Structure
Stainless‑Steel Wire Winding Body
Stainless‑steel wire evenly wound on a high‑strength insulated frame, serving as the core component that converts electric energy into thermal energy.
01
High‑Strength Insulated Frame
A dedicated insulating frame that supports the stainless‑steel wire and guarantees reliable electrical insulation between wire turns as well as between windings and the housing.
02
Metal Heat‑Dissipation Housing
A high‑thermal‑conductivity metallic outer shell that provides physical protection for the whole unit while conducting and dissipating heat efficiently.
03
High‑Reliability Terminals
High‑current conductive ports connecting the winding assembly to external circuits to ensure stable high‑current transmission without local overheating.
04
Mounting Brackets
High‑strength metallic mounting accessories for securely fastening the resistor inside cabinets or at designated installation positions.
05
Working Principle
Leveraging the intrinsic high‑resistance characteristic of stainless‑steel wire, Stainless Steel Wire Wound Load Resistor converts electrical energy from connected circuits into thermal energy through the Joule effect to simulate real‑circuit load conditions. Evenly arranged stainless‑steel wires spread heat across the entire resistor assembly; heat is then rapidly transferred to the surrounding environment via the external metal housing while resistance values remain steady. It completes load‑carrying tests for power‑supply products and absorbs excess regenerative energy from electronic‑control systems to realise circuit‑load regulation and safety protection.
Application Scope
01
Power‑Supply Test Equipment
Used for load‑carrying tests on various AC and DC power supplies before factory delivery to verify product performance by simulating real‑world operating scenarios.
02
Variable‑Frequency Drive Systems
Matched with industrial frequency‑conversion equipment for hoisting and lifting applications to rapidly absorb excess regenerative energy generated during motor shutdown.
03
New‑Energy Energy‑Storage Scenarios
Satisfies emergency energy‑dissipation requirements for energy‑storage converters and safely releases surplus internal power under abnormal operating conditions.
Notes
Do not operate continuously far above the rated power. Excessively high internal temperature will fuse and break the stainless‑steel wire and result in permanent failure.
Do not fully cover or block the resistor's heat‑dissipation surfaces with foreign objects; heat accumulation will accelerate performance degradation and ageing.
Avoid direct deployment in long‑term water‑logged and high‑humidity environments without protective measures; otherwise, the overall insulation performance will deteriorate rapidly.
The housing reaches high temperatures during operation and shortly after shutdown. Do not touch it with bare hands to prevent high‑temperature burns.
Non‑professionals shall not privately disassemble Stainless Steel Wire Wound Load Resistor. Damaging the internal potting structure will compromise its overall protective performance.
Factory Environment
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