2026-10-24Author: 江光电气-技术部

Explain how to set the per-unit power limit and the total power limit for the JGXZ-63 dormitory power limiting protector, and provide default parameter examples, a 10%–15% margin, over-limit reset, and troubleshooting steps.

View More

2026-10-23Author: 江光

For users purchasing low-voltage electrical products in China, this provides actionable steps such as verifying the entity’s information, requesting manuals by product category, and confirming delivery schedules and certifications in writing, and explains key points for selection discussions for categories such as control and protective switches, overvoltage/underVoltage Protectors, and arc fault protection devices.

View More

2026-10-23Author: 江光

Review common on-site issues with three-display control and protection switches, explain the setting paths and saving methods for function parameters and protection parameters, and outline troubleshooting directions for motor power, phase loss, locked rotor, unbalance, undercurrent, and overcurrent.

View More

2026-10-11Author: 江光

Selecting a control and protection switch (CPS) based solely on motor power can easily lead to a mismatch. Written for electrical design, panel building, and maintenance personnel, this article clearly explains a matching approach centered on circuit current, along with how to configure phase-loss, locked-rotor, unbalance, and overload protection. Parameters are subject to the approved version of the manual.

View More

2026-10-10Author: 江光

The JGFH-63 is a current-limiting electrical fire protection product, officially named a Current-Limiting Fire Alarm Protector (Current-Limiting Electrical Fire Protection Device). This article aligns the terminology and explains protection functions and parameters such as fire prevention, current limiting, leakage current, overtemperature, and overvoltage protection, along with key points for product selection and troubleshooting.

View More

2026-09-13Author: smart-ai

JGKB-45 triple-display control and protection switch confirmation checklist for engineering selection: functional positioning, rated current and voltage, motor protection, auxiliary contacts, control method, and wiring installation. All unknown parameters are marked as "to be confirmed"—no fabricated certifications or case studies.

View More

2026-09-12Author: 江光

Dormitory power restrictions, distribution box upgrades, and charging facilities each have different requirements for overvoltage and undervoltage protection. This article explains in plain language the configuration differences between single-phase and three-phase four-wire systems, with a parameter comparison table, a selection coordination checklist, and 3 FAQs. Unknown parameters are all marked "to be confirmed"—do not carry out construction directly from the page summary.

View More

2026-09-11Author: smart-ai

This article details the first power-on delay, fault reset logic, safe wiring requirements, and common issues of the JGIV-63S intelligent current-limiting over/under-Voltage Protector, helping users standardize installation and operation and avoid misoperation.

View More

2026-09-10Author: smart-ai

Over/under Voltage Protector setup FAQ: How to enter the menu, adjust thresholds, and save? This article explains the setup steps, parameter ranges, and precautions for products such as the JGIV-63S in clear, easy-to-understand terms.

View More

2026-09-08Author: smart-ai

The current-limiting fire alarm protector is an intelligent electrical device that integrates overvoltage, undervoltage, and overcurrent protection. This article explains its functions, principles, application scenarios, and key selection points in plain language to help you quickly understand this product.

View More