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Coil for MCB Miniature Circuit Breaker (1041018)

When current passes through the coil, a magnetic field is generated and magnetic energy is stored; when the current changes, the coil generates an induced electromotive force (Lenz's law), which hinders the change of current ("passes direct current and blocks alternating current" characteristics)
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  • coil

  • HAIPART

  • 1041018


Coils

Coils Manufacturer | HAIPART


Electromagnetic coils achieve millisecond response under fault currents. HAIPART skin depth calculation optimizes conductor cross-sections, and transient thermal capacity design prevents local overheating. Together with the quick-release mechanism, they form a transient protection chain.


Why Choose HAIPART Coils?



✅Maintains a low-impedance path under DC conditions



✅Generates back EMF during AC anomalies



✅Precisely controls protection thresholds with magnetic saturation points



✅Thermally balanced design prevents temperature drift



Applications:

✅ New Energy

✅ Digital Grid

✅ Industry 4.0


FAQ

Q1:What are the reasons for severe coil overheating?

A1:Core loss, excessive winding resistance, and load current exceeding the rated value.


Q2:What are the possible causes of abnormal noises from a coil?

A2:Magnetostriction effect, loose winding, or core concentricity error.


Q3:What are the typical symptoms of coil damage?

A3:Inductance value deviates from nominal value, heat generation increases under light load, electromagnetic interference, and appearance damage.


Q4:Can a burnt-out coil still be used?

A4:Use is strictly prohibited. Burning will damage the insulation layer, easily causing a short circuit; the performance of the magnetic core will degrade irreversibly.


Q5:What are the common causes of excessive coil temperature rise?

A5:Inter-turn short circuit, excessively high ambient temperature, power supply voltage fluctuation (exceeding ±15% of the rated value).


Q6:How to reduce electromagnetic interference from coils?

A6:The magnetic core structure is optimized and a shielded winding process is adopted to avoid close proximity to sensitive circuits.


Q7:What factors affect coil lifespan?

A7:Operating frequency, duty cycle, and ambient temperature. Frequent start-stop cycles or high-temperature environments will significantly shorten the lifespan.


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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