Three Phase Magnetic Latching Relay
Products Description
The Three Phase Magnetic Latching Relay is a four-terminal precision resistor fabricated from a manganese-copper alloy. Its core function is to enable the precise, indirect measurement of high-magnitude DC or low-frequency AC currents by measuring the voltage drop (V) across a known precision resistance (R), in accordance with Ohm's Law (I = V/R). It is specifically designed for applications requiring high accuracy, low temperature drift, and long-term stable current monitoring-such as battery management systems, high-precision power supplies, motor drives, energy metering, and test and calibration equipment-serving as a critical sensing cornerstone for the digital and intelligent management and control of electrical systems.
Key Features
| Steady-State Current Conduction | Manganin Shunt Resistor serves as the core pathway of the relay's main circuit, it reliably carries the rated operating current with low conduction losses, ensuring no abnormal heat accumulation during prolonged operation. |
| Precise Current Sampling | Through fixed-resistance voltage division, it converts the high current of the main circuit into a recognizable low-voltage analog signal, providing precise data to the metering chip and the main control system. |
| Overload Status Monitoring | Electric Current Measure Manganin Shunt captures abnormal fluctuations in the circuit current in real time, enabling the relay to rapidly identify fault conditions-such as overloads or phase imbalances-and trigger protective actions. |
| Adaptive Voltage Stabilization | Micro Ohm Manganin Welding Shunt Resistor mitigates electrical interference caused by dynamic load fluctuations, ensuring the stability of the relay's switching logic and preventing issues related to false triggering or missed operations. |
Technical Features
Actuator and Magnetic Shaft Assembly
Magnetic Shunt Customized employs a "transmission" mechanism utilizing a magnetic shaft and an actuator plate to convert the rotational motion of the magnetic circuit into linear translation of the reed; this design minimizes frictional losses and extends mechanical service life.
Rigid Shunt Pins
The sampling pins of the Bar Shape Shunt Resistor feature a design incorporating through-holes and an insulating structure, facilitating automated insertion processes and enhancing the reliability of sampling signal transmission.
Short-Circuit Current Withstand Capability
The Brass Terminal Lead Shunt Resistor is engineered with an electromagnetic compensation structure; when a short-circuit current flows through the device, an additional electromagnetic repulsive force is generated between the contacts to counteract contact separation, enabling a short-time withstand current capability of up to 1800A for 10ms.
Frequently Asked Questions
1. What accuracy grades are available for Bar Shape Shunt Resistor?
They are available in various accuracy grades-including ±1%, ±0.5%, and ±0.25%-allowing users to select the option best suited to their specific measurement requirements.
2. Why are Magnetic Shunt Customized particularly well-suited for current sampling applications involving latching relays?
Their extremely low temperature drift and low thermoelectric potential characteristics make them ideal for operating conditions involving high-frequency relay switching and long-term standby modes. Furthermore, their integrated structural design allows for seamless embedding within the relay housing, thereby ensuring long-term stability in current sampling.
3. What is the fundamental difference between Micro Ohm Manganin Welding Shunt Resistor and standard alloy resistors?
Manganin material possesses inherent temperature self-compensation properties; consequently, its temperature drift and thermoelectric potential performance are far superior to those of standard alloy resistors. This capability effectively eliminates sampling accuracy deviations caused by fluctuations in temperature or operating conditions.
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If you are looking for a Three-Phase Magnetic Latching Relay, please feel free to contact us for technical specifications, sample support, and customized solutions.
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