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Switchgear cabinet selection
Complete Switchgear Cabinets for LV and MV Distribution Projects
Compare low-voltage distribution cabinets, GIS gas-insulated switchgear, KYN28 metal-clad withdrawable switchgear, RMU and XGN fixed-type cabinets before preparing a technical RFQ.
Switchgear cabinet series
Start with the cabinet series, then confirm rating and bay schedule.
Select the closest series from project role, voltage class and installation room. Model number, bay schedule and drawings come after the series is confirmed.
Series 01
Low-Voltage Distribution Cabinets
For transformer secondary distribution, MCC rooms, feeder drawers and fixed LV boards after the project is already on the low-voltage side.
380 V to 690 VGCK / GGD / MNSFixed or drawer
Series 02
KYN28 Metal-Clad Switchgear
For indoor MV feeder bays that need a withdrawable VCB truck, relay chamber, metal-clad compartments and interlock review.
3.6 / 7.2 / 12 kV630 A to 4000 AWithdrawable VCB
Series 03
Ring Main Unit
For compact cable ring networks, branch boxes, small substations and distribution terminals using C/F/V/CB module combinations.
12 / 24 kV optionsC / F / V / CB modulesCompact layout
Series 04
XGN Fixed-Type Switchgear
For fixed indoor MV or HV rooms where a box-type cabinet fits the layout, maintenance method and switch duty.
10 / 12 / 40.5 kVFixed cabinetIndoor room
Series 05
GIS Gas-Insulated Switchgear
For GIS, SF6 sealed-tank, common-box or compact gas-insulated cabinet inquiries. Available values cover 10 kV, 12 kV and 12/24 kV sealed cabinet applications.
10 / 12 / 24 kV630 / 1250 ASF6 sealed tank
GIS SPEC: Available values cover JLSRM-12 gas-insulated RMU, XRM/SRM 12/24 common-box RMU, HXGN15-12 SF6 ring cabinet and 10 kV enclosed gas-insulated RMU. Keep a dedicated GIS lineup request separate until a dedicated GIS drawing or model sheet is supplied.
GIS gas-insulated cabinet SPEC
Gas-insulated switchgear values available for the fifth product entry.
Use these values for early GIS, SF6 sealed-tank, common-box and compact gas-insulated cabinet review before confirming the final module sequence and quotation package.
10 / 12 / 24 kV630 / 1250 ASF6 sealed tank
JLSRM-12 gas-insulated RMU, XRM/SRM 12/24 common-box RMU, HXGN15-12 SF6 ring network cabinet and 10 kV enclosed gas-insulated RMU package.
10 kV distribution network, 12 kV gas-insulated RMU and 12/24 kV common-box or SF6 ring cabinet values.
JLSRM-12 630 A class. XRM/SRM lists C 630 A, F 125 A, V 630 A and CB 1250/630 A. HXGN15-12 lists main and branch busbar 1250/630 A.
JLSRM-12 lists 45 kV power-frequency withstand and 75 kV lightning impulse. XRM/SRM lists 42/50 kV power-frequency and 95/125 kV impulse. HXGN15-12 lists 42/65 kV power-frequency and 75/125 kV impulse values.
JLSRM-12 lists 20 kA breaking for V module, 63 kA peak making and 25/20 kA short-time withstand. XRM/SRM lists F 31.5 kA, V 20/16 kA and CB 25/20 kA breaking values. HXGN15-12 lists 20 kA / 3 s main-circuit withstand and 50 kA peak withstand.
SF6 gas medium, sealed stainless-steel body, common-box construction, enclosed gas chamber option, IP65 gas chamber value for the enclosed unit and IP3X value for HXGN15-12.
JLSRM-12 lists 3000 operations for C module and 10000 operations for V module. XRM/SRM lists C 5000, F 3000, V 5000 and ES 2000/5000 operations. HXGN15-12 lists 2000 operations for load switch and earthing switch.
XRM/SRM lists -25 C to +40 C and humidity below 95%. Other sealed gas-insulated cabinet values should be confirmed against the project standard before quotation.
Application environment
Application Environment Fit
Match the cabinet series to the installation environment first: LV room, indoor MV switchgear room, compact cable network, fixed MV room or sealed gas-insulated requirement.
LV distribution room
Low-Voltage Distribution Cabinets
Use LV distribution cabinets in indoor low-voltage power rooms, MCC rooms, plants, commercial buildings and transformer secondary distribution boards.
Indoor MV switchgear room
KYN28 Metal-Clad Switchgear
Use KYN28 switchgear in indoor medium-voltage rooms where incoming, outgoing or transformer feeder bays require withdrawable VCB trucks.
Compact secondary distribution
Ring Main Unit
Use RMU cabinets in cable ring networks, small substations, branch boxes and distribution terminals where compact modular bays reduce room footprint.
Fixed indoor MV room
XGN Fixed-Type Switchgear
Use XGN fixed-type switchgear in substations, power plants, transformer rooms, industrial facilities and commercial buildings where fixed box-type cabinet layout fits.
Sealed gas-insulated requirement
GIS Gas-Insulated Switchgear
Use GIS gas-insulated switchgear wording for SF6 sealed-tank, common-box and compact gas-insulated cabinet inquiries before final module and bay confirmation.
Product Selection Matrix
Switchgear cabinet selection matrix by application, voltage class and package scope.
Cabinet series
Best fit
Voltage range
Duty focus
Package focus
RFQ trigger
01Low-Voltage Distribution CabinetsLV room / MCC
Best fitTransformer secondary
LV rooms, MCC and power centers.
Duty focusIncoming / feeder / motor control
Compensation, metering and drawer circuits.
Package focusBusbar + drawer or fixed structure
Breaker package / IP level / Feeder count
RFQ triggerSingle-line + load list
Incoming current / Feeder schedule / Room standard
02KYN28 Metal-Clad SwitchgearIndoor MV switch room
Best fitWithdrawable feeder bays
Indoor feeder and transformer bays.
Duty focusVCB truck + relay protection
Compartment separation and interlocks.
Package focusBreaker + CT/PT + relay chamber
Busbar current / Cable entry / Interlock
RFQ triggerVoltage + short-circuit level
Feeder function / Relay scheme / Drawing request
03Ring Main UnitCompact cable network
Best fitRing network / branch terminal
Cable rings, branch boxes and terminals.
Duty focusC / F / V / CB modules
Load switch, fuse, VCB and earthing.
Package focusSealed tank + module sequence
Expandable bus / Metering bay / Cable termination
RFQ triggerRing diagram + module sequence
Feeder count / Cable size / Utility standard
04XGN Fixed-Type SwitchgearFixed indoor MV/HV room
Best fitFixed box-type bay
Substation or transformer-room fixed bay.
Duty focusFixed incoming / feeder duty
Fixed incoming and feeder switching.
Package focusBreaker or load-switch bay
Bus arrangement / Protection / Room clearance
RFQ triggerRoom layout + cable trench
Rated voltage / Breaking current / Cable direction
05GIS Gas-Insulated SwitchgearSealed compact project
Best fitSF6 sealed-tank cabinet
GIS, SF6, common-box or sealed cabinet inquiries.
Duty focusC / F / V / CB or SF6 ring duty
Load switch, fuse, VCB and breaker module checks.
Package focusSF6 tank + module sequence
Gas pressure / IP65 tank option / Cable interface
RFQ triggerVoltage + bay count
Insulation medium / Module sequence / Utility standard
Structure and Working Principle
Switchgear Cabinet Structure and Package Layers
After the cabinet series is selected, define the enclosure format, switching unit, main circuit path, protection layer and room interface before final model confirmation.
Switchgear cabinet structure flow
Series choice sets the enclosure. The switching unit, busbar path, cable entry and protection layer then define the final cabinet package.
Voltage sideLV / KYN28 / RMU / XGN
System voltage and room duty define the enclosure format.
Switching unitBreaker / Switch / Module
VCB truck, load switch, fuse combination or fixed bay duty.
Main circuitBusbar / Cable Entry
Main busbar, branch busbar, cable side and termination direction.
Protection layerRelay / CT / PT
Protection, metering, control power and interlock logic.
InstallationRoom / Trench
Cabinet width, access side, cable trench and clearance.
Factory checksRoutine / Interlock
Dielectric, mechanical operation and interlock checks.
LV distribution cabinet lineupDrawer and fixed LV cabinet construction for transformer secondary distribution.
KYN28 withdrawable MV bayMetal-clad switchgear cabinet with VCB truck, relay chamber and cable compartment.
RMU sealed module lineupCompact C/F/V/CB modules for cable ring networks and secondary substations.
01
Enclosure Format
Fixed, drawer, withdrawable, sealed, common-box, expandable or non-expandable cabinet layout.
02
Switching Unit
VCB truck, load switch, fuse combination, breaker module and earthing switch define the bay duty.
03
Main Circuit Path
Incoming busbar, branch busbar, cable entry and termination direction decide the compartment arrangement.
04
Protection Layer
Relay, CT/PT, metering, control power, indication and interlocks are matched to the feeder function.
05
Room Interface
Cabinet width, access side, cable trench position and extension side must match the switchgear room.
Drawing and Technical Data Review
Switchgear Cabinet Drawings and Technical Data
Use technical files to confirm the cabinet series, bay sequence, room interface and wiring before production drawings are locked; teams can also download switchgear cabinet catalog PDFs before final series review.
File 01Specification Sheet
Voltage class, rated current, short-circuit level, insulation level and service condition.
File 02Single-Line Diagram
Incoming supply, feeder function, transformer bay, metering bay and outgoing circuit count.
File 03Bay Schedule
Cabinet sequence, module order, breaker or switch duty, CT/PT and relay requirement.
File 04Outline And Wiring Drawings
Cabinet width, cable entry, trench position, room clearance, wiring and terminal arrangement.
Keep factory inspection and packing records separate from drawing review so each stage has a clear document purpose.
01
Lock the cabinet series first.
LV cabinet, KYN28, RMU, XGN and GIS wording use different rating rows, enclosure formats and drawing references.
02
Use the single-line diagram as the starting file.
The diagram confirms incoming supply, feeder purpose, metering position and transformer connection before the bay schedule is finalized.
03
Match drawings to room constraints.
Outline and wiring drawings should reflect cabinet width, access side, cable trench, terminal position and future extension side.
04
Separate review drawings from factory records.
Drawing files define layout and wiring before production; routine inspection and packing records belong to the delivery stage.
Factory inspectionInspection and export packing are planned after the cabinet package is confirmed.
XIYA POWER can align routine checks, packing method, shipping marks and destination documents with the final order scope.
01Routine Inspection
Visual assembly, wiring marks, nameplate data and basic mechanical condition are checked before packing.
02Operation And Interlock
Breaker truck movement, switch operation, earthing position and door interlock logic are checked where applicable.
03Dielectric And Insulation
Power-frequency withstand, insulation resistance or project-specified electrical checks can be arranged with the order scope.
04Export Packing Control
Cabinets are fixed for sea or land transport with moisture protection, shipping marks and destination document support.
RFQ Data for Switchgear Cabinet Quotation
Send the selected series, ratings, bay package and delivery context, or check certificates, test reports and RFQ forms when project files need review. XIYA POWER can then return a focused cabinet quotation instead of a generic model estimate.
Step 01
Selected Series
LV cabinet, KYN28, RMU, XGN or GIS wording, plus application environment.
Step 02
Electrical Ratings
Voltage class, rated current, short-circuit level, frequency and protection degree.
Step 03
Bay And Package
Single-line diagram, bay schedule, switching unit, CT/PT, relay and metering need.
Step 04
Delivery Context
Cable direction, room limit, quantity, destination standard, packing request and document language.
Which complete switchgear cabinet series fits a low-voltage distribution room?
Use low-voltage distribution cabinets when the project is on the transformer secondary side and needs MCC feeders, drawer units, fixed outgoing boards, compensation or metering inside a 380 V to 690 V LV room.
When should KYN28 switchgear be selected instead of an RMU?
Use KYN28 for indoor MV rooms that need withdrawable VCB feeder bays, relay chambers, metal-clad separation and higher short-circuit review. Use an RMU for compact cable rings, branch boxes and secondary distribution terminals.
How should GIS gas-insulated switchgear wording be handled?
Use the GIS entry for gas-insulated, SF6 sealed-tank, common-box or compact sealed cabinet inquiries. Confirm voltage class, module sequence, insulation medium, bay count and cable interface before separating it from RMU-style sealed units.
What is needed for a useful switchgear cabinet RFQ?
Send the selected cabinet series, single-line diagram, voltage class, rated current, short-circuit level, bay sequence, protection package, cable direction, quantity and destination standard.
Which drawings should be requested for complete switchgear cabinets?
Request outline dimensions, single-line diagram review, wiring drawings and room layout drawings after the cabinet series and bay schedule are confirmed.
What factory inspection items are usually checked before packing?
Typical checks include visual assembly, nameplate data, wiring marks, mechanical operation, breaker or switch movement, earthing position, interlock logic and electrical tests required by the order scope.
How are switchgear cabinets packed for export shipping?
Export packing should fix the cabinet body, protect door panels and meters, add moisture protection, mark cabinet numbers and shipping marks, and match the packing method to sea, land or container transport.