Products

SPX factory's CE-certified TH-T18 0.35A Thermal Relay is a high-precision overload protection device designed specifically for protecting micro and small three-phase motors. Its core setting current is 0.35 amperes, designed to provide precise matching inverse time overload and phase failure protection for small power motors (usually corresponding to around 100W) with rated current at this level. This product solves the problem of insufficient protection accuracy of universal thermal relays in the extremely low current range, and is a key protective component for the reliable operation of precision instruments, small automation equipment, and micro motors.

SPX was founded in 2005 and is one of the most reliable manufacturers and suppliers of thermal overload relays in China. Our high quality TH-T25KP Thermal Overload Relay is an adjustable professional protection device designed for heavy-duty applications and precise protection needs. Its core feature is to provide a wide range and high-precision continuous current setting capability, and adopt an independent installation structure to provide stable and customizable overload and phase failure protection beyond standard models for three-phase motors that require precise matching and harsh working conditions.

SPX factory's high quality TH-T50KP Thermal Relay for Motor Protection is made in China, it is a high-performance, adjustable protection device designed specifically for medium to large three-phase asynchronous motors. It provides customized and reliable inverse time overload protection for motors within a broader current framework (T50 series) through precise continuous current tuning, enhanced phase failure protection mechanism, and excellent environmental tolerance. Its core value lies in solving the precise matching and stable operation problems of motor protection under complex working conditions, heavy load applications, and harsh environments. It is the backbone of industrial motor protection systems that balance flexibility, reliability, and professionalism.

Founded in 2005, Zhejiang SPX Electric Appliance Co., Ltd. introduces the high quality Motor Overload Protection Thermal Relay in stock is a core component of inverse time overload protection designed specifically for three-phase asynchronous motors. It continuously monitors the operating current through a bimetallic mechanism that simulates the heating characteristics of motor windings. In the event of overload, phase failure, or imbalance faults, it delays the action based on the thermal accumulation effect and cuts off the control circuit to protect the motor. Its core value lies in providing a classic protection solution that is economical, reliable, maintenance free, and fundamentally matches the thermal characteristics of the motor. It is a fundamental safety barrier to prevent the motor from burning out due to continuous overheating.

The SPX high quality 3 Pole 2-Element Thermal Overload Relay embodies our product philosophy of 'suitability is optimal'. This product can provide stable and reliable basic overload protection within its designed scope of application. We ensure that its protective properties meet standard requirements through optimized bimetallic sheet materials and precise mechanism tuning. Choosing SPX means that you have made a shrewd value investment while meeting your core protection needs. We are happy to provide you with targeted selection consultation to help you determine whether it is a suitable choice for a specific application.

SPX high quality Thermal Overload Relay TH-T25 18A is our practice of the concept of "precise matching". We promise that every product calibrated as 18A has undergone specialized testing and calibration for this current value to ensure that its protection characteristic curve perfectly meets the needs of the target motor. Choosing SPX means that you have chosen a ready to use safety guarantee for those key 18A power cores and a calm approach without worrying about consistent debugging.