Defined selection basis
Published reference ratings give engineering and procurement teams a clear starting point for technical comparison.
Primary distribution switchgear
ML-AIS122412/24 kV Air-Insulated Metal-Enclosed Withdrawable Switchgear
Indoor primary distribution switchgear with documented 12 kV reference ratings and a 24 kV product platform.
1 / 2Reference product views - final lineup follows approved project documents.
For controlled power distribution
12/24 kV primary MV switchgear
ML-AIS1224 combines air-insulated metal-enclosed construction with a withdrawable device arrangement for utility, industrial, infrastructure and renewable-energy distribution. Published values define the catalogue reference; the offered configuration is confirmed against approved project documents.
- 01Withdrawable switching-device arrangement
- 02Documented internal-arc reference classification
- 03Defined insulation, enclosure and endurance references
Customer benefits
Clear evidence, controlled configuration and practical delivery
Benefits are expressed around the engineering and project workflow, with product claims kept tied to the documented reference.
Project-engineered configuration
Busbar, protection, interfaces and panel arrangement are confirmed against the approved single-line diagram and project documents.
Controlled evidence mapping
Available 12 kv type-test report available is reviewed against the offered model, rating and construction before submission.
Documented handover
Approved drawings, inspection records and final documents are organized around the released project configuration.
Technical data
Documented reference configuration
Published values are catalogue references. The offered configuration is confirmed against the approved single-line diagram, data sheets and project interfaces.
Typical applications
Utility distributionIndustrial facilitiesInfrastructureRenewable energy and storage
Rated voltage / frequency12 / 24 kV - 50 Hz
Rated current (12 kV reference)1250 A
Short-time withstand current31.5 kA / 4 s
Peak withstand current80 kA
Internal arc (12 kV reference)IAC AFLR - 31.5 kA / 1 s
12 kV insulation levels42/48 kV - 75/85 kV
24 kV insulation levels65/79 kV - 125/145 kV
Degree of protectionIP4X enclosure - IP2X with CB compartment open
Impact resistanceIK10
12 kV endurance classesCircuit-breaker E2/M2 - earthing switch E2/M1
Outline and dimensions
Reference envelope for early layout work
12 kV reference: 800 W x 1500 D x 2300 H mm; 24 kV typical: 800/1000 W x 1810 D x 2380 H mm
Final dimensions are subject to the approved general arrangement.Front view
Side view
Find out more
Technical resources
Use published documents for preliminary review. Applicability to a project offer is confirmed during technical clarification.
Product questions
What to confirm before selection
What is the published reference for ML-AIS1224?
The page lists the catalogue reference configuration for ML-AIS1224. Final ratings and interfaces remain subject to the approved project documents.
Are the published dimensions fixed for every project?
No. The dimensions are a documented reference envelope. Final width, depth, height and lineup arrangement depend on the selected devices, ratings, cable interfaces and approved general arrangement.
What evidence can be requested?
12 kV type-test report available can be reviewed for applicability to the offered model and configuration. Project-specific routine verification is handled separately during manufacturing and release.
Project-specific review