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Thermal Trip Unit
HAIPART
3054050
When motor winding temperatures reach critical levels, the HAIPART bimetallic thermal trip unit performs nanometer-scale deformation calculations. Its temperature-sensing element, made of aviation-grade nickel-chromium composite material, boasts a thermal expansion coefficient accurate to ±0.5%/°C. Under extreme operating conditions such as chemical and metallurgical processes, our thermal memory alloy automatically compensates for ambient temperature fluctuations, eliminating the possibility of false overload protection.
Applications:
Suitable for home power, industrial production lines, new energy photovoltaics, and other applications.
FAQ
Q1:What is the core function of the thermal trip unit?
A1:It provides overload protection by using the principle of bimetallic strip bending under heat to delay and cut off the circuit when the current continuously exceeds the rated value, preventing the equipment from being damaged by long-term overload.
Q2:What are the differences between a thermal trip unit and a magnetic trip unit?
A2:Thermal trip: Only responds to overload current (delayed action), no short-circuit protection.
Magnetic trip: Only responds to short-circuit current (instantaneous action), no overload protection.
Q3:What are the requirements for the installation location of the thermal trip unit?
A3:By placing it close to the load side, the impact of line impedance on protection sensitivity is reduced.
Q4:How to verify the reliability of the thermal trip unit's operation?
A4:The short-circuit test simulates fault current to verify that the trip unit operates within 5ms, while the overload test continuously operates at 1.2 times the rated current to ensure that the thermal trip does not malfunction.
Q5:What are the common causes of malfunctions in magnetic trip units?
A5:Electrical interference and mechanical jamming.
Q6:What are the safety standards for magnetic trip units?
A6:Electrical safety must pass the IEC 60947-2 short-circuit withstand test (e.g., 50kA/1s), and outdoor applications must meet the IP54 protection rating (dustproof and waterproof).
Q7:Special design of magnetic trip unit in low-voltage power distribution?
A7:Selective protection and shunt trip extension.
Q8:What are the prices of your products?
A8:Product prices vary depending on the model, specifications, and quantity. Please consult the sales team or check the official website for details.
Q9:What after-sales services do you provide?
A9:We provide comprehensive after-sales services, including product consultation, technical guidance, installation and commissioning, repair and replacement, and warranty.
Q10:How can I contact your technical support?
A10:Technical support can be contacted through the official website, customer service hotline, or email.
Get a Quote
+86-13819777367
Sales@haipart.com
When motor winding temperatures reach critical levels, the HAIPART bimetallic thermal trip unit performs nanometer-scale deformation calculations. Its temperature-sensing element, made of aviation-grade nickel-chromium composite material, boasts a thermal expansion coefficient accurate to ±0.5%/°C. Under extreme operating conditions such as chemical and metallurgical processes, our thermal memory alloy automatically compensates for ambient temperature fluctuations, eliminating the possibility of false overload protection.
Applications:
Suitable for home power, industrial production lines, new energy photovoltaics, and other applications.
FAQ
Q1:What is the core function of the thermal trip unit?
A1:It provides overload protection by using the principle of bimetallic strip bending under heat to delay and cut off the circuit when the current continuously exceeds the rated value, preventing the equipment from being damaged by long-term overload.
Q2:What are the differences between a thermal trip unit and a magnetic trip unit?
A2:Thermal trip: Only responds to overload current (delayed action), no short-circuit protection.
Magnetic trip: Only responds to short-circuit current (instantaneous action), no overload protection.
Q3:What are the requirements for the installation location of the thermal trip unit?
A3:By placing it close to the load side, the impact of line impedance on protection sensitivity is reduced.
Q4:How to verify the reliability of the thermal trip unit's operation?
A4:The short-circuit test simulates fault current to verify that the trip unit operates within 5ms, while the overload test continuously operates at 1.2 times the rated current to ensure that the thermal trip does not malfunction.
Q5:What are the common causes of malfunctions in magnetic trip units?
A5:Electrical interference and mechanical jamming.
Q6:What are the safety standards for magnetic trip units?
A6:Electrical safety must pass the IEC 60947-2 short-circuit withstand test (e.g., 50kA/1s), and outdoor applications must meet the IP54 protection rating (dustproof and waterproof).
Q7:Special design of magnetic trip unit in low-voltage power distribution?
A7:Selective protection and shunt trip extension.
Q8:What are the prices of your products?
A8:Product prices vary depending on the model, specifications, and quantity. Please consult the sales team or check the official website for details.
Q9:What after-sales services do you provide?
A9:We provide comprehensive after-sales services, including product consultation, technical guidance, installation and commissioning, repair and replacement, and warranty.
Q10:How can I contact your technical support?
A10:Technical support can be contacted through the official website, customer service hotline, or email.
Get a Quote
+86-13819777367
Sales@haipart.com
