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Assemblies for MCB Miniature Circuit Breaker (3053015)

When a short circuit occurs in the (MCB) circuit (such as the phase line and the phase line, or the phase line and the neutral line are directly connected), the (MCB) will instantly generate a short-circuit current far greater than the normal operating current (usually tens to hundreds of times the rated current). The core of the magnetic release is an electromagnet (composed of a coil and an iron core): When the (MCB) short-circuit current passes through the coil, it will generate a strong electromagnetic force, attracting the iron core to move, and then push the mechanical mechanism of the circuit breaker, so that the moving and static contacts are quickly separated, and the circuit is cut off in a very short time (usually milliseconds), avoiding the continuous action of the short-circuit current, which will cause the line to overheat, the equipment to burn, and even cause a fire.
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  • Magnetic Trip Unit

  • HAIPART

  • 3053015


Magnetic Trip Unit

Magnetic Trip Unit Manufacturer | HAIPART


When the short-circuit current reaches 10kA, traditional trip units require 20ms to respond. However, our HyperTrip™ technology, using superconducting magnetic rings and AI-powered predictive algorithms, reduces the operating time to 5ms. This means that arc energy release can be reduced by 83% in high-end manufacturing production lines, effectively equipping each piece of equipment with a tireless "lightning bodyguard."


Why choose the HAIPART Magnetic Trip Unit?



✅Military-grade magnetic conductor



✅Zero-inertia mechanism



✅Self-cleaning contacts



Applications:

It can be used in a variety of scenarios, including home power systems, industrial power distribution equipment, ships and transportation facilities, data centers and precision production lines, and smart infrastructure.


FAQ

Q1:What is the core function of the magnetic trip unit?

A1:Instantaneous short-circuit protection uses the principle of electromagnetic induction to detect sudden current changes and cuts off the circuit in milliseconds to prevent equipment damage.


Q2:What is the difference between a magnetic trip unit and a thermal 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 magnetic 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 magnetic 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


Contact HAIPART

+86-13819777367

Sales@haipart.com


Brand
HAIPART
Technology
spot welding
assembly
Riveting
stamping
Personnel
300+
Patent
12
Parts
Arc Chamber
Terminals
Stamping Parts
Colis
Wires
Magnetic Core
Assemblies
Magnetic Trip Unit
Thermal Trip Unit
Operating Mechanism
Contact Assembly
Connector Assembly
End Products
MCB
MCCB
RCCB
RCBO
SPD
SCB
Motor Protector
Electronic Over Current Relay
Time Relay
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We believe that through our manufacturing strengths and service commitment, we are able to provide our customers with superior products and an unparalleled service experience.​​​​​​​
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