High Voltage Switchgear(KYN28A-12)

KYN28A-12 series switchgear is a type of indoor metal-clad withdrawable medium-voltage switchgear equipment, widely applied in power plants, substations, industrial and mining enterprises, commercial buildings and other locations for power distribution and control purposes.

Product Description

KYN28A-12 medium-voltage switchgear,a metal-clad withdrawable switchgear for 10kV power distribution,is designed for incoming/outcoming panel,bus connection panel and other power feeder control.Here are some key technical parameters for KYN28A-12 swithchgear:rated current(630A~4000A),breaking capacity(25kA~40kA,higher options available),VCB operating time ≤60ms,visible breakpoint via truck-mounted design,5-interlock mechanism (Anti-misoperation),smart Monitoring(wireless contact temp sensing、arc-flash protection、power quality analysis(THD＜3%),standards compliance(GB/T 3906 (CN) / IEC 60298 (Int’l))

Product Advantages

Robust Enclosure DesignMaterial:Aluminum-zinc coated steel (standard) / Stainless steel (corrosive environments) Protection Level:IP4X (enclosure) / IP2X (internal compartments) Withdrawable Mechanism:Circuit breaker mounted on truck assembly for easy maintenance without de-energization.
High-Performance Vacuum Circuit Breaker Compatible Brands:VS1 (ZN63A-12) (Standard) / ABB VD4 / Siemens 3AH Breaking Capacity: 25kA~40kA Life Endurance:Mechanical: 10,000~30,000 operations,Electrical: 10,000 operations full-capacity interruptions
Safety & Interlocking 5-Protection Interlocks: Prevent unauthorized breaker operation Block access to live compartments Prevent earthing switch errors Interlock live closing of earthing switches Prevent truck withdrawal under load
Smart Monitoring Options Supports temperature and humidity control, live display, and intelligent protection devices (such as microcomputer integrated protection). Optional wireless temperature measurement, arc flash protection, and remote communication (RS485/Modbus).
Modular Configurations Standard Schemes:Incoming/Outgoing cabinet.Bus connection cabinet, PT/Metering cabinet Installation Flexibility:Bottom in/out cable entry,Busbar bridging (horizontal/vertical)

Parameter of some products

Key Technical Parameters of KYN28A-12 Switchgear
Feature	unit	Specification
Rated power frequency withstand voltage(1min)	kV	42kV（main circuit,phase-to-ground & phase-to-phase） / 48kV（breaker isolation gap,across open contacts）
Rated current	A	630	1250	1250	2500	3150	4000
Rated short circuit breaking current	kA	20	25	31.5	31.5	40	40
Rated peak withstand current	kA	50	63	80	80	100	100
Enclosure dimensions(WxDxH)mm	mm	800(1000)×1450(1750)×2240

It is widely applied in industries such as power grids, petrochemicals, new energy, industrial and mining enterprises, data centers, and municipal engineering.

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High Voltage Switchgear(KYN28A-12)

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