Our Blog&News
What is DC MCCB？
Lvma-ele on 26-04-13
DC molded case circuit breakers (DC MCCBs) are essential protective components for modern DC power systems. Designed to prevent overload...
What is a WiFi Over & Under Voltage Protector？
Lvma-ele on 26-04-13
A WiFi over & under voltage protector is an intelligent power protection device with WiFi remote monitoring and control, plus overvoltage...
What is a time switch?
Lvma-ele on 26-04-03
A time switch (also called a microcomputer time switch or programmable timer switch) is an intelligent power switching device based on a single-chip microprocessor...
What is an electronic molded-case circuit breaker?
Lvma-ele on 26-04-03
An electronic molded case circuit breaker (MCCB) is a type of molded case circuit breaker centered on an electronic trip unit. It accurately monitors, judges...
What is an Over/Under Voltage Protector? Complete Guide & Product Specifications
Lvma-ele on 26-04-03
In an era of growing reliance on electrical equipment—from household appliances to industrial machinery and photovoltaic systems—voltage instability...
Common Electrical Symbols
Lvma-ele on 26-03-31
Learning electrical symbols is a gradual process. First, understand the rules of the symbols, then learn how to interpret diagrams, and finally solidify...
The 139th China Import and Export Fair (Canton Fair)
Lvma-ele on 26-03-28
The 139th China Import and Export Fair (Canton Fair) will grandly kick off in Pazhou Complex, Guangzhou, from April 15 to 19, 2026. As a outstanding...
What is a Mini Power Relay？
Lvma-ele on 26-03-13
Mini Power Relay is an electromagnetic or solid-state switching device with a small size and compact structure. Its core function is to use small current (coil side) to...
The Ultimate AC Contactor Selection Guide
Lvma-ele on 26-03-12
In industrial automation and electrical control systems, the AC contactor plays a critical role as the workhorse that frequently switches motors, lighting, and power circuits...
What is XB2 Button Switch？
Lvma-ele on 26-03-10
The LVMA XB2 series is a 22mm opening industrial button/indicator with a head + base + contact detachable design...
What is the difference between an AC contactor and a relay?
Lvma-ele on 26-03-04
Both are electromagnetic control devices and operate on the exact same principle (when the coil is energized, it generates electromagnetic force to pull...
Solenoid Type ATS: How Automatic Transfer Switch Ensures Instant Power Transfer for Critical Systems
Lvma-ele on 26-03-01
In critical environments—hospitals, data centers, and industrial plants—power failures can have catastrophic consequences...