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In electrical switches, a “Pole” (P) refers to the number of independent circuit paths the switch can control or interrupt. One “pole” corresponds to one independent current-carrying path. For a Transfer Switch, its number of poles determines how many lines it switches s...

Short-time withstand current (Icw) refers to the ability of a circuit breaker to withstand a specified short-duration current (e.g., 0.05, 0.1, 0.25, 0.5, or 1 second) under defined voltage, short-circuit current, and power factor conditions without tripping. The rated short-time withstand curr...

Imagine a tiny metal strip inside your breaker. When you plug in too many devices, excess current flows, just like overworking a muscle. This current heats up the "bimetallic strip." Made of two metals bonded together, they expand at different rates when heated, causing the strip to bend. This ...

The XGN15-12 is a type of high-voltage ring main unit (RMU), a crucial component in 10kV to 12kV electrical distribution networks. Its primary role is to receive and distribute electrical power reliably and safely. The heart of this unit is a Sulfur Hexafluoride (SF6) gas-insulated load switch,...

A Frame Circuit Breaker, also known as an Air Circuit Breaker (ACB), is a core protective component in low-voltage distribution systems, responsible for power distribution and providing protection against overload, short-circuit, and under-voltage faults. The W1 series, as a typical representat...

An MCCB is a vital component in electrical distribution systems, designed to protect circuits from damage caused by overcurrent, short circuits, and, in some models, undervoltage. Its key feature is a molded insulating housing that encapsulates all critical components—contacts, arc chute,...

The ZGS11-12, often called the "American-style compact substation," is an integrated power distribution solution that combines high-voltage switching equipment, the transformer, and low-voltage functionality within a single sealed oil tank. Known for its small footprint, fully insulated design,...

GGD is a fixed AC low-voltage power distribution device, suitable for power systems in power plants, substations, and industrial enterprises. GCK, GCS, and MNS are withdrawable switchgear with modular drawer designs, widely used for power distribution, motor control, and lighting systems.

Mingri Electric introduces the SJKM1L Earth Leakage Circuit Breaker, a high-performance safety device for 400V/50Hz systems. With current ratings up to 800A and 30mA-30A residual current protection, it prevents electrical fires and equipment damage from ground faults.

The JXF Control Box from Mingri Electric is a versatile low-voltage distribution solution designed for 50Hz/400V systems with current ratings up to 250A. Built to operate reliably in harsh environments (-25°C to +40°C) and at altitudes up to 2000m, it provides comprehensive motor protec...

The SJK47-63 Miniature Circuit Breaker (MCB) from Mingri Electric is a high-performance circuit protection device designed for 220/380V AC systems. With a current range of up to 63A and compliance with GB10963.1, IEC60898-1, and CCC standards, it offers reliable overload and short-circuit prote...

For large commercial complexes like shopping malls and office buildings, electricity is the lifeline of operation, but also a major cost burden. Are you facing the following challenges?