The S2 & S3 test bench is a professional testing device designed for performance and durability testing of motors (such as PMSM) under S2 and S3 duty cycles. It is mainly used to verify the motor’s load-bearing capacity, thermal stability and service life under intermittent and periodic working conditions, widely applied in motor R&D, factory inspection and quality control.

Motor endurance testing, S2 and S3 testing, and temperature variations under different current and torque conditions

S2 Duty Cycle Test：The test focuses on measuring the motor’s torque, speed, power and temperature rise during the working period, ensuring it meets the rated performance requirements within the specified working time without overheating or performance degradation.

S3 Duty Cycle Test:The test monitors the motor’s dynamic performance, thermal recovery capacity and long-term durability during multiple cycles, verifying its reliability under intermittent operation scenarios.