Please Choose Your Language
product category
You are here: Home / Products / Solutions / Magnetic Trip Unit / Magnetic Trip Unit for MCB Miniature Circuit Breaker (3057290)

Magnetic Trip Unit for MCB Miniature Circuit Breaker (3057290)

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.
Availability:
Quantity:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
kakao sharing button
snapchat sharing button
telegram sharing button
sharethis sharing button
  • Magnetic Trip Unit

  • HAIPART

  • 3057290


Magnetic Trip Unit

Magnetic Trip Unit Manufacturer | HAIPART


This groundbreaking miniature trip unit, utilizing MEMS technology, measures only 8×8×3mm yet achieves a 160A breaking capacity. Its secret lies in its three-dimensional stacked magnetic circuit design, like an explosion-proof heart for precision instruments. It's perfectly suited for space-critical applications such as servo drives and medical imaging equipment.


Why choose the HAIPART Magnetic Trip Unit?



✅The nanocrystalline core's magnetic permeability (μr > 50,000) ensures a saturation magnetic field within 0.5ms.



✅The diamond-like carbon-coated guide rail reduces the armature's friction coefficient to 0.02.



✅Magnetic fluid damping technology improves efficiency by 60% by converting contact separation kinetic energy into heat.



Applications:

It can be used in a variety of applications, including smart buildings, new energy vehicle charging stations, and specialized industries.


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
Previous: 
Next: 
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.​​​​​​​
Follow Asendia