Latching Relay Iron Core
Products Description

The Latching Relay Iron Core is a core magnetic circuit component specifically designed for magnetic latching relays. Through an innovative magnetic circuit structure design, it enables the relay to automatically maintain its state after being energized and retain its current position even after power is cut off, requiring no continuous power supply. Unlike ordinary relay cores, our product upgrades "magnetic latching" from a simple function to a core guarantee of system energy efficiency, reducing the relay's energy consumption in the latching state to 1/10 of that of traditional relays, achieving a paradigm shift from "passive energy consumption" to "active energy saving."
In industrial automation, intelligent buildings, and energy management systems, the magnetic latching relay core has become an essential component for energy efficiency optimization. It not only solves the problem of continuous energy consumption in traditional relays but also, through engineering design, transforms the relay from an "energy consumer" to an "energy saver," bringing sustainable energy efficiency improvements to the system.
Material Advantages – Soft Magnetic Materials Optimised for State Switching
High Permeability for Sensitivity
We select soft magnetic alloys or silicon steel with high initial and maximum permeability. This means it is extremely sensitive to weak pulsed magnetic fields, allowing state switching to be driven with minimal energy, reducing the requirements for the drive coil and lowering the overall power consumption of the system.
Low Coercivity for Variability
Coercivity is the ease with which a material demagnetises. Our Iron Core Relay Part material has extremely low coercivity, meaning it is not inherently "stubborn," easily magnetised, and easily demagnetised. This ensures it can respond quickly to changes in pulsed magnetic fields without being affected by its own "magnetic memory" effect, which could interfere with state switching.
"Power Reserve" of High Saturation Magnetic Induction
The material possesses high saturation magnetic induction, meaning it can generate a strong instantaneous electromagnetic force at the moment of state transition, ensuring reliable flipping even under mechanical resistance or environmental vibration.
Excellent Magnetic Performance Consistency
In a bistable system, the symmetry of the two states is crucial. The materials we source exhibit extremely high batch stability of magnetic properties, ensuring that each DT4C AC Relay Iron core displays nearly consistent holding force between the two states, avoiding switching failures due to performance variations.

Technical Features: Engineered Implementation of Magnetic Holding Mechanism
Intelligent Design of Magnetic Holding Circuit
Our Coil Core for Electromagnetic relay employs a "dual magnetic circuit" structure design, comprising a main magnetic circuit and an auxiliary magnetic circuit. The main magnetic circuit is responsible for the magnetic drive when energised, while the auxiliary magnetic circuit maintains the magnetic holding state after power is de-energised. This design is not a simple structural superposition, but rather is based on in-depth engineering calculations of the magnetic field distribution, making the magnetic holding process more stable and reliable.
Energy-Efficient Optimised Magnetic Circuit Path
For the magnetic holding characteristics, the Relay core nickel plating with copper undercoat is designed with a special magnetic circuit path, enabling the magnetic flux to close with the shortest path in the holding state, significantly reducing magnetic resistance and minimising magnetic holding energy consumption. This design reduces the relay's energy consumption in the holding state by 90% compared to traditional relays, significantly improving system energy efficiency.
Long-Life Magnetic Performance Guarantee
Through the coordinated design of materials and structure, the Relay core cold heading's magnetic holding performance decay rate is less than 5% after 1 million switching cycles, while the decay rate of ordinary relay cores exceeds 30%. This long-life characteristic stems from the engineered optimisation of the magnetic holding mechanism, ensuring stable energy efficiency performance of the relay during long-term use.

Design Advantages for Ultimate Reliability
Hysteresis Loop Design and Verification
We not only select materials but also, through coordination with heat treatment processes, practically "shape" the hysteresis loop to meet the specific dynamic and static parameter requirements of the relay.
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Anti-Adhesion and Guaranteed Release Design
We accurately calculate the holding force of the permanent magnet in the release position and optimize the residual magnetic attraction between the Straight Coil Core and armature in the release state, ensuring reliable and complete relay release after the drive pulse is removed.
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Magnetic Circuit Designed for Automated Production
The Cold Heading Pure Iron Core assembly design includes clear polarity markings, anti-misassembly structures, and geometric features suitable for automated gripping and testing.
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Full Lifecycle Magnetic Stability Simulation
Based on accelerated aging test data, we simulate the decay curve of the Coil Soft Iron Core's magnetic properties under the combined effects of temperature, time, and slight mechanical stress, ensuring that it meets the holding force requirements throughout its entire lifecycle.
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