Company Introduction
Company Introduction
Founded in 1993, Approach Technology (APPROACH) is renowned for its professional product development, design, and innovation capabilities, establishing itself as one of the major suppliers of automatic power cut-off switches. The company's products a...
2026-03-04
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Certification Qualifications
Certification Qualifications
Zongpro (Dongguan) Electrical inc. is a manufacturer specializing in various overload protectors and overload switches. The company produces a range of overload protection switch products, available in multiple current and voltage options, and accept...
2026-03-04
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Operating principle of overload protection switch
Operating principle of overload protection switch
An overload protection switch is a ship-type switch for overcurrent protection.The principle is that when the circuit experiences an overcurrent, the current passes through a current detection coil, generating a magnetic field that unlocks the overcu...
2026-03-04
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The function of the overload protector in the compressor
The function of the overload protector in the compresso...
The overload protector is typically installed inside the compressor. Its function is often to be positioned between the driving and driven sides of the power transmission. When an overload fault occurs (torque exceeds the set value), the torque limit...
2026-03-04
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The function of the overload protection switch on the plugboard
The function of the overload protection switch on the p...
The overload protection switch on the power strip 2113 is essentially a passive-driven thermal protection relay, typically installed on the side of the power strip near the power cord.This type of overload protection switch has a maximum safe operati...
2026-03-04
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Operating principle of dual-circuit overload protection switch
Operating principle of dual-circuit overload protection...
1. Core definition of dual-circuit overload protection switchThe dual-circuit overload protection switch is an electrical safety device featuring independent protection for two circuits. By integrating two sets of independent overload detection and t...
2026-03-04
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What is IEC certification, and what are the certification standards of IEC
What is IEC certification, and what are the certificati...
The International Electrotechnical Commission (IEC) is one of the most influential and authoritative international standardization and conformity assessment organizations globally. It is responsible for formulating and publishing international standa...
2026-03-04
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