Products

SPX durable 4P 200A Molded Case Circuit Breaker is a key protection device designed specifically for three-phase four wire (TN-S, TT system) distribution circuits. It provides synchronous protection and isolation for three phase wires and neutral wire (N pole) at a rated current of 200A. We have always followed IEC/EN standards and Chinese GB standards, which makes our products of high quality. Choose SPX to avoid detours.

The high-quality 4P 350A Molded Case Circuit Breaker provided by SPX is a deep response to the risk of neutral line overheating and safety isolation challenges in modern distribution systems. We not only provide products that meet standards, but also offer professional services based on system harmonic analysis, protection selective simulation, and full lifecycle reliability management. Choosing SPX means that you have chosen the most comprehensive security perspective and forward-looking technological response partner for your critical power facilities, thereby building a strong and intelligent power infrastructure for your own enterprise.

SPX factory offers a high quality 4P 250A 200A Molded Case Circuit Breaker, which is our direct response to the increasingly complex power distribution environment and constantly improving safety standards. We ensure that every product undergoes rigorous testing, and its four pole synchronous breaking performance and N-pole protection characteristics meet and exceed the standard requirements. We not only provide products, but also are willing to share our experience in designing quadrupole systems, assessing harmonic effects, and coordinating protection to help you build a safer, more standardized, and more reliable distribution system. Choosing SPX means choosing an uncompromising commitment to safety and standards.

SPX's durable Thermal Overload Relay is a protective device designed specifically to protect three-phase asynchronous motors and other loads from sustained overload, phase failure, and current imbalance damage. The core principle is based on the physical characteristics of bimetallic sheets bending under heat, simulating the heating curve of the motor and providing accurate inverse time overload protection. It does not directly disconnect the main circuit, but achieves protection by controlling the contactor coil circuit. With its economic, reliable, and intuitive protection characteristics, it has become an indispensable classic protection component in motor control circuits

The customized TH-T65 54A Thermal Relay is manufactured by SPX in China and is a motor specific protection device with a rated setting current of 54 amperes. It provides inverse time overload and phase failure protection based on the bimetallic strip principle by accurately matching the rated current of medium power three-phase motors. We have been dedicated to researching Thermal Relays since our establishment. Please feel free to contact us if you have any questions!

SPX factory's high quality Overload Protection Thermal Relay is a protective device designed to prevent winding overheating and damage caused by prolonged operation of electric motors beyond rated current. Its core lies in utilizing the physical characteristics of bimetallic sheets bending under heat, simulating the heating model of motors, and providing precise matching inverse time overload protection. It monitors the motor current and outputs a signal to disconnect the control circuit when the overload continues to reach a dangerous threshold, thereby achieving non instantaneous, heat accumulation based protection. It is an economical, reliable, and essential classic protective component in the safe operation of motors.