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Thermal Trip Unit
HAIPART
3052120
The HAIPART intelligent thermal trip unit's built-in NTC temperature sensor generates a winding thermal resistance model every 10 milliseconds. When an abnormal temperature rise curve is predicted, a warning signal is triggered in advance rather than a passive shutdown. This preemptive protection mode, based on a heat accumulation algorithm, is transforming fault handling logic in continuous production processes such as food packaging and injection molding.
Applications:
Suitable for home power, industrial production lines, and new energy photovoltaic 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
The HAIPART intelligent thermal trip unit's built-in NTC temperature sensor generates a winding thermal resistance model every 10 milliseconds. When an abnormal temperature rise curve is predicted, a warning signal is triggered in advance rather than a passive shutdown. This preemptive protection mode, based on a heat accumulation algorithm, is transforming fault handling logic in continuous production processes such as food packaging and injection molding.
Applications:
Suitable for home power, industrial production lines, and new energy photovoltaic 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
