CWH-12 Series Environmentally Friendly Medium-Voltage Ring Main Unit Switchgear

An environmentally friendly gas-insulated ring main unit is an advanced switching device that uses an eco‑friendly gas—dry air—as its insulating medium, replacing traditional sulfur hexafluoride (SF6). High‑purity oxygen and nitrogen are blended in a 21%–79% ratio to mimic the natural composition of ambient air. The advantages of this type of switchgear include its environmental friendliness, superior insulation performance, enhanced safety, and greater flexibility. It not only minimizes environmental impact but also improves dielectric strength and electric field uniformity through optimized design. Additionally, it offers easy maintenance, high safety, and suitability for a wide range of operating conditions.

RM AirSeT Eco-friendly Gas-Insulated Switchgear

The RM AirSeT gas-insulated switchgear manufactured by Chengwei Electric features core components from Schneider Electric, including its switchgear mechanisms and gas‑insulated enclosures. It is produced in strict compliance with GB and IEC standards, offering full insulation and complete sealing, with no need for gas replenishment throughout its service life. It is well suited to harsh environments, boasts a compact design, and incorporates load‑break switches that provide closing–opening and isolation–grounding functions, with multiple configurations to meet even the most demanding requirements. With its broad range of applications, this environmentally friendly gas‑insulated ring main unit can be deployed in residential buildings, public facilities, industrial plants, and other structures—particularly in medium- and small‑capacity substations and medium‑voltage sectionalizing rooms.

Authorization Cabinet Blokset Low-Voltage Distribution Cabinet

BlokSet is a high‑quality switchgear that meets both international and domestic standards. The products have been certified by the internationally recognized ASEFA testing laboratory and undergo regular, ongoing inspections at Schneider Electric's own test facilities. With its outstanding performance, exceptional reliability, comprehensive solutions, and cutting‑edge smart distribution technologies, BlokSet has earned widespread acclaim from customers worldwide and across China, serving sectors including construction, industry, energy, and infrastructure, and exemplifying the highest international standards in low‑voltage switchgear.