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26/02/2020

Return to work in the disease

On February 26, the production of NPOWER Group resumed. The director and manager of our company personally supervised the production work of the company on the spot. They required employees to queue in an orderly manner wearing masks, and only after being disinfected with alcohol and having their body temperature measured could they enter the company to resume work.

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10/06/2026
Why Do Power Relay Contacts Weld Shut Under Motor Loads?

Why Do Power Relay Contacts Weld Shut Under Motor Loads?

Motor inrush current (5‑10× running) welds relay contacts. Derate contact rating 5‑7×, use AgSnO₂ for AC, AgNi for DC, and add a flyback diode for DC coils.

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03/06/2026
Why does a packaging line jam when the temperature changes by 5 degrees, but a time relay keeps it running for a full shift?

Why does a packaging line jam when the temperature changes by 5 degrees, but a time relay keeps it running for a full shift?

An electronic time relay eliminates temperature drift, offers repeatability under 5 ms, accepts universal AC/DC input (24V–380V), supports multiple delay modes and 5A contacts, reducing spare parts inventory and downtime.

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04

Time Switch Explained: Definition, Types & Uses

Click volume:821Add time:2026-03-04

A time switch automates device schedules based on time, with types like mechanical, digital, and astronomical, offering energy-efficient solutions for home, lighting, and industrial use.

14

what is an ac contactor​?

Click volume:780Add time:2026-01-14

An AC contactor is an electromagnetically controlled device that safely and reliably switches high-power AC circuits, enabling efficient automation and motor control in industrial and commercial ...

17

What types of time relays are there?

Click volume:950Add time:2025-12-17

A time relay is an electrical control device that introduces a preset time delay to switch circuits, with multiple types used to ensure precise sequencing, protection, and automation in industria...

08

What does the motor controller provide protection for?

Click volume:1238Add time:2025-12-08

Motor controllers provide comprehensive protection—including overload, short-circuit, phase loss, voltage fluctuation, temperature rise, and stall faults—to ensure safe, stable, and reliable moto...

26

What is a power relay used for?

Click volume:619Add time:2025-11-26

A power relay is an electrically operated switch used to safely control high-power loads with low-power signals, offering isolation, reliability, and wide application across industrial, automotiv...

12

How does a time relay work?

Click volume:872Add time:2025-11-12

The time relay is an essential electrical control component that uses precise timing to enhance safety and efficiency in a wide range of domestic and industrial systems.

25

What Is a Power Relay and Its Use in Applications?

Click volume:1108Add time:2025-09-25

A power relay is an electromechanical switch that uses a low-power control signal to safely and reliably control high-voltage or high-current circuits across diverse industrial, automotive, and c...

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